> For the complete documentation index, see [llms.txt](https://laurence-wilse-samson.gitbook.io/textbooks/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://laurence-wilse-samson.gitbook.io/textbooks/global-finance-a-money-view/part-vii-periphery-reform-and-the-future/chapter-21-emerging-market-finance.md).

# Chapter 21: Emerging Market Finance

## Learning Objectives

After working through this chapter you should be able to:

* Explain what places a currency at the periphery of the monetary hierarchy and what the position costs its issuer.
* Measure original sin and explain why the growth of local currency bond markets has not eliminated it.
* Explain original sin redux and how foreign investors' hedging recreates dollar liabilities domestically.
* Analyze a sudden stop through the balance sheets of the domestic banking system.
* Evaluate the policy toolkit available to emerging markets (reserves, capital flow measures, FX intervention, macroprudential tools) and the trade-offs of each.
* Assess the global financial safety net from the standpoint of a country without a Fed swap line.

***

## Introduction

The international monetary system is not a level playing field. As Chapter 3 established, it is organized around a core-periphery structure with the dollar at its center. Chapters 17-20 examined currency and financial crises as historical episodes; here I develop a systematic framework for why certain economies, particularly emerging markets, are structurally vulnerable to financial instability. In the money view, the position of a country's currency within the global hierarchy (introduced in Chapter 3) shapes its access to liquidity, its policy options, and its susceptibility to crisis.

The financial problems of emerging market economies (EMEs) arise mainly from their structural position at the periphery of the global monetary system, not from domestic policy failures. Their currencies are not used for international invoicing or reserve holdings. Their financial systems lack deep pools of domestic savings. Their central banks cannot serve as genuine lenders of last resort in foreign currency. These limitations interact with global capital flows to produce recurrent crises.

Three concepts organize the analysis: **original sin** (the inability to borrow abroad in one's own currency), sudden stops (abrupt reversals of capital inflows), and **balance sheet mismatches** (the accumulation of currency and maturity vulnerabilities). Together, they explain why EMEs remain fragile participants in international capital markets despite decades of reform.

## 21.1 The Monetary Hierarchy and Peripheral Currencies

<figure><img src="https://3361520045-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FG4yYDrutm5bw16KnLiYZ%2Fuploads%2Fgit-blob-f29f69294645b47da946f6129bed0f780bd44f2a%2Ffig21_1_original_sin_measures.png?alt=media" alt="Four-panel figure computed from BIS international debt securities statistics: OSIN (foreign-currency share) for the euro-area 12, other advanced economies and four emerging regions in 2000-Q4 and Q2 2026; currency of issue against share of world GDP; OSIN at year end 1995-2025 for the euro-area 12, other advanced and emerging economies; and country OSIN in 2000-Q4 against Q2 2026"><figcaption><p><strong>Figure 21.1:</strong> Original Sin Across Countries and Regions. Computed from the BIS international debt securities statistics. Panel A: the original sin index (OSIN, the foreign-currency share of international debt securities issued by a group's residents) in 2000-Q4 and Q2 2026. Emerging-market regions stay between 0.87 and 0.99; the twelve original euro-area members fell from 0.43 to 0.28 while other advanced economies rose from 0.60 to 0.76. Panel B: currency of issue as a share of all international debt securities, against each currency area's share of world GDP. The dollar and euro are over-represented (46% and 39% of debt against 26% and 15% of GDP) and so is sterling (7% against 3%), but the yen and Swiss franc are not (0.9% and 0.7% of debt against 3.7% and 0.9% of GDP). Panel C: OSIN at year end; the euro-area members' index fell from 0.52 in 1998 to 0.24 in 2008. Panel D: of the 25 issuers with an OSIN above 0.9 in 2000-Q4, 22 still are (the exceptions are Bulgaria, China and Sweden); the largest falls among all 45 issuers are euro-area members (Greece, Portugal, Italy, Belgium, Austria). <em>Source: BIS international debt securities statistics (WS_DEBT_SEC2_PUB), after Eichengreen, Hausmann, and Panizza; World Bank, World Development Indicators (NY.GDP.MKTP.CD), retrieved 2026-10-28. The earlier comparison with 1850s borrowing practice is not plotted because its index values could not be traced to a source.</em></p></figcaption></figure>

### The Structure of the International Monetary System

From a money view perspective, the international monetary system comprises a hierarchy of moneys with the US dollar at the apex, the structure introduced in Chapters 2 and 3. Below the dollar sit other "key currencies" (the euro, yen, pound sterling, and Swiss franc), whose issuers can borrow internationally in their own currencies. Chapter 6 showed how these currencies participate in the offshore dollar system. Further down the hierarchy are the currencies of smaller developed economies, and at the bottom are the currencies of emerging markets and developing countries.

The hierarchy has direct operational consequences. Countries at the apex can:

1. **Borrow internationally in domestic currency** - The US can issue Treasury securities denominated in dollars, purchased by foreigners, without taking on currency risk
2. **Expand balance sheets in crisis** - The Federal Reserve can provide liquidity without constraint from foreign exchange reserves
3. **Export adjustment costs** - Depreciation of the dollar shifts part of the adjustment burden to foreign creditors

Countries at the periphery face the opposite situation:

1. **Must borrow in foreign currency** - Mexican firms and the Mexican government must borrow in dollars or euros, taking on currency mismatch
2. **Limited lender of last resort capacity** - The Bank of Mexico can provide pesos, but not the dollars needed to service external debts
3. **Import adjustment costs** - Depreciation of the peso increases the domestic currency value of foreign debts

### Why Hierarchy Persists

The monetary hierarchy reflects patterns of liquidity and confidence that have been stable over time. Several factors explain this persistence:

**Network effects in international money.** Currencies serve as means of payment, and their usefulness increases with the number of counterparties willing to accept them. The dollar's dominance is self-reinforcing at every level of the financial system: SWIFT data show that over 40% of global payments are denominated in dollars; the BIS triennial survey reveals the dollar is on one side of 89% of all foreign exchange transactions; and roughly 40% of international trade is invoiced in dollars even when neither trading partner is American. This network operates through the balance sheets of dealers. When a Brazilian firm issues a dollar bond, it passes through a New York-based primary dealer, is settled through Fedwire, and is held in custody at the Depository Trust Company. Breaking into this network requires good policy and also an entire parallel ecosystem of dealers, custodians, and settlement systems. That is why China's efforts to internationalize the renminbi through CIPS and dim sum bonds have gained only limited traction despite two decades of effort (Eichengreen 2011).

**Financial development asymmetries.** Deep, liquid financial markets in the United States mean that investors can always find dollar assets of any desired maturity and risk profile. The US Treasury market alone offers roughly $27 trillion (2023) in outstanding marketable securities across maturities from four weeks to thirty years, with daily trading volumes exceeding $700 billion. By contrast, the entire local currency bond market of Indonesia (a G20 economy with 275 million people) is roughly $350 billion, with far thinner secondary market liquidity. A fund manager in London seeking to invest $500 million in five-year Indonesian rupiah bonds faces immediate market impact; the same allocation in US Treasuries is invisible. This asymmetry in market depth forces EM borrowers to borrow short (where domestic markets are more liquid) or abroad in dollars (where depth is unlimited). The absence of long-term domestic currency bond markets is both cause and consequence of original sin.

**Historical path dependence.** The current hierarchy reflects decisions made decades ago, particularly the structure of the Bretton Woods system and its aftermath. Countries that emerged from Bretton Woods as creditors (the US, Germany, Japan) retained financial center status and developed the deep capital markets that sustain their position today. Countries that emerged as debtors carry that history on their balance sheets in the form of higher risk premia and shorter borrowing tenors: Mexico defaulted on its dollar debts in 1982, Indonesia's financial system collapsed in 1997, and Argentina has defaulted nine times. Institutions remember this history: when JPMorgan's EM desk evaluates a new peso-denominated bond, it prices it against a history of devaluations stretching back to the 1994 Tequila Crisis.

**Credibility and the collateral hierarchy.** International investors view peripheral currency assets as inherently riskier, and the operational infrastructure of global finance encodes this perception. In repo markets, US Treasuries are accepted as collateral on the best terms, while peripheral government bonds receive larger haircuts. This collateral hierarchy (analyzed through the money view in Chapter 2) means that a dollar of Mexican government debt generates less funding capacity than a dollar of US government debt, even when the credit risk is comparable. The hierarchy operates through dealer balance sheets: when a global bank's prime brokerage desk sets margin requirements, it assigns lower collateral value to EM assets, which raises the cost of holding them and reduces demand. Fiscal discipline alone does not let a country escape this hierarchy; it must persuade the dealers and clearinghouses to treat its assets as near-substitutes for core-country obligations, which takes decades of institutional development.

## 21.2 Original Sin: The Inability to Borrow in One's Own Currency

<figure><img src="https://3361520045-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FG4yYDrutm5bw16KnLiYZ%2Fuploads%2Fgit-blob-51c731ea68d4c46a05cdfd551b681edd9ebadbdc%2Ffig21_2_illiquidity_sudden_stops.png?alt=media" alt="Four-panel figure computed from BIS and World Bank data: short-term bank claims over official reserves at end-1993 and end-1996 for five Asian and five Latin American countries; M2 over reserves in 1996; quarterly change in BIS reporting banks&#x27; cross-border claims on the five Asian crisis economies 1995-99; and the two ratios plotted against each other for end-1996"><figcaption><p><strong>Figure 21.2:</strong> International Illiquidity and Sudden Stop Vulnerability. Panel A: BIS international claims with remaining maturity up to one year, over official reserves excluding gold, at year end. In 1996 the ratio was 1.71 for Indonesia, 1.36 for Korea and 1.12 for Thailand, above the Greenspan-Guidotti benchmark of one, but also 1.29 for Argentina and 1.24 for Mexico, while Malaysia (0.38) and the Philippines (0.74) were below it. Panel B: M2 over reserves in 1996 was highest in Indonesia (6.6) and Korea (6.5) and lowest in Chile (2.0) and Peru (1.3). Panel C: BIS reporting banks' cross-border claims on the five Asian crisis economies grew by $62 billion in 1996, fell by $6 billion in 1997 and by $83 billion in 1998, a swing of $145 billion; this is bank lending only, not all private capital flows. Panel D: the two end-1996 ratios together. <em>Source: BIS consolidated and locational banking statistics (WS_CBS_PUB, WS_LBS_D_PUB); World Bank, World Development Indicators (FI.RES.XGLD.CD, FM.LBL.BMNY.CN, PA.NUS.FCRF), retrieved 2026-10-28; the ratios typed in the earlier version of this figure, attributed to Radelet and Sachs (1998), were larger (Korea 2.06 in June 1997). The earlier half-year capital flows and the M2/reserves warning threshold are not plotted because they had no source.</em></p></figcaption></figure>

### Defining and Measuring Original Sin

The term "original sin" was introduced by Eichengreen and Hausmann (1999) to describe the inability of most countries to borrow abroad in their own currencies. More precisely, a country suffers from original sin when the domestic currency cannot be used to:

1. Borrow abroad, OR
2. Borrow long-term, even domestically

The metaphor is apt: like theological original sin, the condition is inherited rather than deserved, and good behavior does not easily redeem it (Eichengreen et al. 2003).

**Measuring original sin.** The standard measure of original sin (OSIN) calculates:

$$
OSIN = 1 - \frac{\text{Securities issued by country } i \text{ in currency } i}{\text{Total securities issued by country } i}
$$

A country that issues all its international debt in its own currency would have OSIN = 0; a country that issues all in foreign currency would have OSIN = 1.

**The concentration of currency denomination.** Of nearly $5.8 trillion in international securities placed between 1999-2001, approximately $5.6 trillion (97%) were denominated in just five currencies: the dollar, euro, yen, pound, and Swiss franc. While residents of these "financial center" countries issued about $4.5 trillion, the remaining $1.1 trillion denominated in their currencies was issued by residents of other countries and international organizations. So countries outside the financial centers issued most of their international debt in foreign currency.

Developing countries accounted for about 10% of international debt issuance but less than 1% of currency denomination. That gap between issuance and denomination is what original sin means in practice.

### The Persistence of Original Sin

Eichengreen, Hausmann and Panizza, using Flandreau and Sussman's (2005) data on 1850s borrowing, document that the same countries that could borrow in domestic currency in the 1850s are largely the same countries that can do so today. Countries that relied on gold clauses in the 19th century (effectively indexing to a hard money) exhibit the highest levels of original sin today (OSIN ≈ 0.86), while countries that issued domestic currency debt then show the lowest levels now (OSIN ≈ 0.34).

This persistence suggests that original sin reflects structural features of the international monetary system rather than recent policy failures:

* **Size and development of domestic financial markets** - Large, liquid domestic bond markets provide a foundation for international currency use
* **Trade patterns** - Countries whose trade is predominantly invoiced in their own currency are more likely to have international currency borrowing
* **Historical position in the monetary hierarchy** - Countries that were creditors in key historical periods retained advantages

### Redemption from Original Sin

Some countries have achieved partial redemption from original sin, offering clues to what enables domestic currency borrowing:

**Eastern European accession countries.** Poland is the most instructive case. After its 1990s transition, Poland deliberately built the institutions for a domestic currency bond market: the Ministry of Finance established a primary dealer system (1999) modeled on the US Treasury market, with designated market-makers obligated to quote continuous bid-ask spreads in zloty-denominated government bonds. The National Bank of Poland built credibility through an inflation-targeting framework adopted in 1998, bringing inflation from about 35% (1993) to under 4% by 2003. Domestic pension funds, created by the 1999 reform, generated structural demand for long-duration zloty assets. This is a genuine, if partial, escape from original sin. The Czech Republic followed a similar path.

**Commonwealth offshoots.** Canada, Australia, New Zealand, and South Africa can borrow more in domestic currency than their GDP shares would suggest, reflecting deep legal and financial institutions inherited from Britain: common law contract enforcement, independent central banks, and well-regulated banking systems. Australia stands out: the Australian dollar punches well above its GDP weight in international markets, partly because Australia's superannuation system (mandatory employer pension contributions) created a large, stable domestic investor base for Australian dollar bonds. This institutional demand reduced dependence on foreign investors and stabilized the currency, creating a virtuous cycle that most emerging markets cannot replicate without decades of pension system development.

**East Asian tigers.** Singapore and Hong Kong achieved partial redemption through a different route: sustained current account surpluses, massive reserve accumulation, and the development of offshore financial center functions. Singapore's Monetary Authority manages about $390 billion in reserves (end-September 2024) and operates a managed exchange rate regime that has delivered decades of stability, making the Singapore dollar acceptable in regional trade invoicing. Taiwan's central bank holds over $570 billion in reserves against an economy of $800 billion. That ratio of reserve self-insurance effectively underwrites the credibility of New Taiwan dollar assets.

Both fixed and floating exchange rate countries appear on the list of the least sinful, suggesting that no particular exchange rate regime poses a barrier to redemption. In the money view, the common factors are institutional: the creation of domestic dealer capacity (primary dealer systems that make markets in local currency bonds), the development of a domestic institutional investor base (pension funds and insurance companies with natural demand for long-duration local currency assets), and the accumulation of sufficient reserves to credibly backstop the currency in stress. These foundations build slowly and cannot be adjusted overnight like policy variables.

### Original Sin Redux: The New Vulnerability

Carstens and Shin (2019) identify a vulnerability that persists even when countries successfully issue local currency debt abroad, which they call **"original sin redux."** *Who holds the debt* matters as much as *what currency it's denominated in*.

**The problem:** When foreign investors hold local currency bonds, they face exchange rate risk. If the currency depreciates, their dollar-measured returns decline. When many foreign investors hold such positions simultaneously, depreciation can trigger coordinated selling (a "rush for the exits") as investors cut losses. This selling pressure further weakens the currency, creating a self-reinforcing spiral.

**Why redemption is incomplete:** A country may have successfully issued peso-denominated bonds to foreign investors (solving the original sin problem in principle), but remains vulnerable because:

1. **Foreign investors are fickle.** Unlike domestic pension funds, foreign investors have no natural peso liabilities. They can sell when conditions deteriorate, and they will.
2. **Currency hedging creates dollar liabilities.** If foreign investors hedge their peso exposure, they create synthetic dollar liabilities for the local banking system. The banks providing the hedge must fund dollar positions, reintroducing currency mismatch through the back door.
3. **Volatility clustering.** Foreign holdings tend to move together, correlated with global risk appetite (the VIX, US monetary policy). This creates vulnerability to global shocks unrelated to domestic fundamentals.

**Evidence:** The BIS describes this shift from foreign-currency to local-currency external borrowing as one that does not remove emerging markets' vulnerability to foreign financial shocks (Carstens and Shin 2019).

> **Table: Original Sin vs. Original Sin Redux**
>
> **Money View insight:** Original sin redux reflects the **hierarchy of currencies**. Even when debt is denominated in pesos, the investor's unit of account remains dollars. A peso bond held by a New York asset manager is functionally different from the same bond held by a Mexican pension fund, because of the holder's survival constraint and not because of the contract. The New York manager must report returns in dollars, faces redemptions from dollar-based investors, and will sell to meet those constraints. The hierarchy operates through investor behavior, not just debt contracts.
>
> **Policy implications:** Countries cannot escape the hierarchy merely by issuing local currency debt. They must also consider:
>
> * **Investor base diversification:** Developing domestic institutional investors reduces reliance on fickle foreign capital
> * **Capital flow management:** Macro-prudential tools may slow destabilizing outflows
> * **Central bank swap lines:** Access to dollar liquidity from the Fed can backstop markets when foreign investors flee
> * **Debt maturity:** Longer maturities reduce rollover risk even if foreign-held

|                        | **Original Sin**                     | **Original Sin Redux**                 |
| ---------------------- | ------------------------------------ | -------------------------------------- |
| **Definition**         | Debt denominated in foreign currency | Local currency debt held by foreigners |
| **Who bears FX risk?** | Borrower (EM government/firms)       | Lender (foreign investors)             |
| **Crisis trigger**     | Depreciation raises debt burden      | Depreciation causes investor flight    |
| **Amplification**      | Balance sheet effects                | Fire sale dynamics, hedging unwinds    |
| **Policy response**    | FX reserves, debt restructuring      | Capital flow management, swap lines    |
| **Measured by**        | Currency composition of debt         | Residency of bondholders               |

Original sin redux implies that full "redemption" requires local currency issuance and genuine *domestic* investor development, a longer-term project tied to pension reform, financial deepening, and trust in local institutions.

> **External debt of low- and middle-income countries, end-2024.** The World Bank's *International Debt Report 2025* puts the external debt stock of low- and middle-income countries at $8.9 trillion ($8,937 billion), of which short-term debt was $2.4 trillion ($2,394 billion), about 27 percent. By region, total and short-term external debt (US$ billion) were: East Asia and Pacific 3,409 and 1,508; Latin America and the Caribbean 2,000 and 242; Europe and Central Asia 1,169 and 255; Sub-Saharan Africa 901 and 123; Middle East, North Africa, Afghanistan and Pakistan 561 and 108. Private creditors held 72 percent of long-term debt. An earlier version of this section tabulated the currency composition of that debt by country, the average maturity by creditor type and illiquidity ratios by region; those figures could not be traced to a source and are removed.
>
> ### **Key Observations**
>
> 1. **China is now the largest bilateral creditor, but its recorded stock is smaller than the headline numbers suggest:** World Bank International Debt Statistics put Chinese official bilateral public and publicly guaranteed (PPG) claims on low- and middle-income countries at $148B at end-2024, 31% of all bilateral PPG debt those countries owe (\~$475B), or about $170B including Chinese commercial banks. The far larger figure often quoted, AidData's \~$850B (strictly $843B), is cumulative lending *commitments* over 2000-17, a flow rather than an outstanding stock; AidData's v3.0 data raise cumulative Chinese official commitments to low- and middle-income countries to $1.34T for 2000-21. AidData also estimates some $385B of unreported "hidden debt" that the recorded stock misses. Much of this lending runs through the Belt & Road Initiative:
>    * Lending primarily for infrastructure (ports, railways, power plants)
>    * Some loans denominated in RMB (supporting RMB internationalization)
>    * Debt sustainability concerns: many B\&R borrowers (Sri Lanka, Pakistan, Zambia) face distress
>
> ***
>
> ### **Money View Insights**
>
> * **Why sudden stops are violent:** When $2.4T in short-term debt (end-2024, World Bank) must roll over annually, a creditor "stop" forces immediate adjustment:
>   * Can't roll over debt → must run current account surplus (export more than import)
>   * Requires real depreciation (making exports cheap, imports expensive)
>   * Depreciation increases local-currency value of foreign debt → balance sheet crisis
>   * Corporate bankruptcies → banking crisis → output collapse
>   * The adjustment happens in months, not years, hence "sudden" stop
> * **China's bilateral lending creates new dependencies:** China's recorded official claims ($148B at end-2024) are under 2% of the $8.9 trillion external debt of low- and middle-income countries but 31% of the bilateral PPG debt of low- and middle-income countries, and AidData's estimate of \~$385B in unreported debt suggests the true exposure is larger. This shifts power:
>   * **Traditional creditors (Paris Club, IMF):** Coordinate through established forums, impose standardized conditionality
>   * **China:** Bilateral negotiations, non-transparent terms, infrastructure collateral (port seizures)
>   * Creates "debt trap" concerns, but also provides alternative to Western-dominated institutions
>   * For borrowers, Chinese lending is double-edged: cheap infrastructure finance vs sovereignty risks
> * **Private creditor dominance (72% of long-term debt) creates fragility:** Official creditors (bilateral + multilateral, 28%) are patient: loans are long-term, restructuring is possible. Private creditors (72%) flee at first sign of trouble:
>   * Bond prices collapse
>   * Bank lines are cut (refuse to roll over syndicated loans)
>   * Trade finance evaporates (even solvent firms can't get letters of credit)
>   * This creates the "sudden" in sudden stops: private money moves fast
> * **The survival constraint binds in dollars, not local currency:** EM central banks can create unlimited local currency (pesos, rupiah, rand). But they cannot create dollars. When dollar debt comes due and creditors won't roll over:
>   * Local currency creation doesn't help (can't pay dollar debts with pesos)
>   * Must sell reserves (limited) or default
>   * The Fed is the ultimate lender of last resort for dollars, but provides liquidity selectively (swap lines for some countries, not others)
>   * This is why dollar hegemony persists: EMs depend on Fed liquidity access, which depends on US geopolitical priorities

## 21.3 The Consequences of Original Sin

### Balance Sheet Vulnerability

The core consequence of original sin is **aggregate currency mismatch** on a country's national balance sheet. A country with original sin that accumulates net foreign debt, as developing countries typically do, will hold foreign currency liabilities without matching foreign currency assets.

**Individual hedging versus aggregate exposure.** Individual borrowers may hedge their currency exposure through forward contracts or options. But hedging only redistributes risk within the economy; it does not eliminate it. If Mexican corporations hedge their dollar debts, they transfer the currency risk to the domestic banks that write the forwards. If banks hedge by buying dollars from the central bank, the currency risk moves to the public sector. In the aggregate, a country with net foreign debt denominated in foreign currency cannot hedge away its currency mismatch.

**Policy responses to original sin.** Countries can respond to original sin in three main ways:

1. **Financial autarky** - Avoid borrowing abroad entirely. This eliminates currency mismatch but forgoes the benefits of international capital (consumption smoothing, investment finance).
2. **Reserve accumulation** - Match foreign currency liabilities with foreign currency assets. This eliminates net exposure but is costly: the yield on reserves is typically far below the cost of borrowing.
3. **Accept the mismatch** - Borrow abroad in foreign currency and bear the currency risk. This is the approach most countries have taken, with the consequences described below.

### Volatility and Pro-cyclicality

Original sin makes real exchange rates matter for debt sustainability. Depreciation increases the domestic currency value of foreign debts and creates several problematic dynamics:

**Counter-productive monetary policy.** Standard open-economy macroeconomics treats depreciation as expansionary: it improves competitiveness and stimulates net exports. But with original sin, depreciation is potentially contractionary because it increases the real burden of debt. Expansionary monetary policy weakens the exchange rate, reduces net worth, and may be less expansionary or even contractionary (Aghion et al. 2001).

**Limited exchange rate flexibility.** Central banks become unwilling to let exchange rates move freely because of the wealth effects on domestic balance sheets. They respond by holding more reserves, intervening in foreign exchange markets, or adjusting short-term interest rates to manage the exchange rate: what Calvo and Reinhart (2002) termed "fear of floating."

**Output volatility.** Countries with higher original sin exhibit higher output volatility, controlling for other determinants. The exchange rate becomes a source of shocks rather than a buffer against them.

**Lower credit ratings.** Original sin is associated with lower sovereign credit ratings, controlling for debt levels and other standard determinants. The currency mismatch represents a contingent liability that rating agencies appropriately price.

### Constrained Lender of Last Resort

Original sin also limits the central bank as lender of last resort. The Federal Reserve can supply unlimited dollars to domestic banks facing liquidity problems. A central bank afflicted by original sin can supply domestic currency, but the relevant shortage may be of foreign currency.

Consider a Mexican bank facing deposit withdrawals. The Bank of Mexico can supply pesos, but if the bank's liabilities include dollar deposits or dollar-denominated debt, peso liquidity does not help. The bank needs dollars, and the central bank can only supply those to the extent of its limited foreign exchange reserves.

As Chang and Velasco (2000) argue, the combination of fractional reserve (and hence potentially illiquid) banks with limited access to international capital markets leaves the economy open to self-fulfilling runs. A private bank in Bangkok or Mexico City will receive many international loan offers when conditions are favorable, but none when depositors are running. The domestic central bank cannot fill the gap.

## 21.4 Sudden Stops and Capital Flow Reversals

<figure><img src="https://3361520045-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FG4yYDrutm5bw16KnLiYZ%2Fuploads%2Fgit-blob-23015f41095a41286b98b24028a5c6ad5c686940%2Ffig21_3_balance_sheet_transmission.png?alt=media" alt="Four-panel figure: definitions of four balance sheet mismatches; stylized sectoral balance sheets for government, banks and corporates with their net foreign-currency positions; a diagram of crisis transmission from depreciation through corporate defaults and bank losses to a reserve drain; and the direct effect of a 30% depreciation on each sector&#x27;s net worth computed from the stylized balance sheets"><figcaption><p><strong>Figure 21.3:</strong> Balance Sheet Mismatches and Crisis Transmission. Panel A defines the four mismatches of the balance sheet approach. Panels B and D use one invented set of sectoral balance sheets (local-currency units, exchange rate = 100): a 30% depreciation raises the local-currency value of foreign-currency items by 30%, so its direct effect on net worth is 0.3 times the sector's net foreign-currency position. It takes corporate net worth from 10 to -2 (insolvent) and bank net worth from 10 to 7, but raises government net worth from 15 to 16.5, because the government's net foreign-currency position is positive. Banks' and government's losses in a crisis come through the second-round effects of panel C (corporate defaults, runs, guarantees), which this arithmetic does not include. <em>Source: Author's illustration (stylized, not data); framework after Allen et al. (2002), Mishkin (2004). The earlier panel of crisis frequencies by mismatch type (85, 70, 55 and 30 per cent) is removed: it had no source.</em></p></figcaption></figure>

<figure><img src="https://3361520045-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FG4yYDrutm5bw16KnLiYZ%2Fuploads%2Fgit-blob-d11d25c4a62b261e86d2fb592a27451ca8e11136%2Ffig21_4_em_policy_responses.png?alt=media" alt="Four-panel figure: stacked official reserves excluding gold of 20 emerging economies in three groups (Asia, Latin America, Gulf states and Egypt), 1995-2025; reserves in months of imports and reserves over short-term BIS bank claims for six countries at end-2024; Fed central bank liquidity swaps outstanding and IMF credit plus SDR allocations to low- and middle-income countries; and the annual carry cost of those reserves at an assumed spread of 1, 2 and 3 points"><figcaption><p><strong>Figure 21.4:</strong> Emerging Market Policy Responses. A. Official reserves excluding gold of 20 emerging economies (nine in Asia, six in Latin America, five Gulf states and Egypt) rose from USD 0.4 trillion in 1995 to 3.3 trillion in 2007 and 7.2 trillion in 2025. Asia holds 5.5 trillion of the 2025 total and accounts for 78 per cent of the increase since 1997 (China alone, 49 per cent). B. At end-2024 all six countries held more than three months of imports (Mexico, 3.5, the lowest) and more reserves than the short-term claims of BIS reporting banks (cover from 3.0 for Brazil to 47 for Russia, whose reported reserves include the assets immobilised since 2022). Bank claims are one part of short-term external debt, so this cover is overstated. C. The collective safety net in use, not its capacity. Fed central bank liquidity swaps outstanding peaked at USD 583 billion in December 2008 and 449 billion in May 2020. IMF credit plus SDR allocations outstanding to low- and middle-income countries went from USD 111 billion in 2003 to 39 billion in 2008 and 371 billion in 2024; the steps in 2009 and 2021 coincide with the SDR allocations of those years, and the series cannot separate credit from allocations. D. The carry cost of the reserves in A at an assumed spread of 1, 2 and 3 points is USD 72, 144 and 215 billion a year in 2025; the spread is an assumption, not a measurement. <em>Source: World Bank WDI (FI.RES.XGLD.CD, FI.RES.TOTL.MO, DT.DOD.DIMF.CD); BIS consolidated banking statistics (WS_CBS_PUB); Federal Reserve H.4.1 via FRED (SWPT); author's arithmetic in D. Removed because they were typed without a source or are not open data: regional reserves for 1995-2015, months of imports and short-term debt cover for 2015, the 2007 and 2015 safety-net components (IMF quota, IMF borrowed resources, bilateral swap lines, regional arrangements) and the reserves-times-spread cost series.</em></p></figcaption></figure>

### The Anatomy of Sudden Stops

A **sudden stop** occurs when a country receiving substantial capital inflows experiences an abrupt reversal. The term, coined by Guillermo Calvo (1998), refers to the abrupt, unexpected character of these episodes. Reduced inflows force the adjustment all at once.

The mechanics of sudden stops follow from the balance of payments identity:

$$
\text{Current Account} + \text{Capital Account} = \Delta \text{Reserves}
$$

A country receiving capital inflows can run a current account deficit, consuming and investing more than it produces. When inflows suddenly reverse, the current account must adjust rapidly to surplus, requiring a sharp contraction in absorption (consumption plus investment) and/or a large real depreciation.

**Scale of adjustment.** Radelet and Sachs (1998) estimate that net private capital flows to Indonesia, Korea, Malaysia, the Philippines and Thailand swung by $105 billion, from a $93 billion inflow in 1996 to a $12 billion outflow in 1997, around 11 percent of their pre-crisis GDP. This swing had to be absorbed in months.

### International Illiquidity as a Trigger

Chang and Velasco (1998, 1999) develop a framework based on **international illiquidity**, a situation in which a financial system's potential short-term foreign currency obligations exceed the foreign currency it can access on short notice.

**Measuring illiquidity.** The relevant measure is:

$$
\text{Illiquidity Ratio} = \frac{\text{Short-term external debt}}{\text{Foreign exchange reserves}}
$$

When this ratio exceeds one, the country cannot repay short-term debt if creditors refuse to roll over. The Asian crisis countries exhibited sharply rising illiquidity ratios in the years before their crises:

| Country     | End-1995 | Mid-1997 |
| ----------- | -------- | -------- |
| Korea       | 1.7      | 2.1      |
| Indonesia   | 1.9      | 1.7      |
| Thailand    | 1.2      | 1.5      |
| Malaysia    | 0.3      | 0.6      |
| Philippines | 0.5      | 0.8      |

For comparison, Mexico's ratio was 5.2 at the end of 1994, on the eve of its own crisis (Radelet and Sachs 1998, Table 5; the ratio there is BIS-reporting-bank debt to reserves).

**M2 to reserves.** An alternative measure captures the potential for domestic deposit flight to drain reserves:

$$
\text{M2/Reserves Ratio}
$$

This ratio was about 6.5 in Korea and Indonesia at the end of 1996, indicating that domestic deposits represented a much larger claim on foreign exchange than available reserves.

### Multiple Equilibria and Self-Fulfilling Crises

When the illiquidity ratio exceeds one, the country becomes vulnerable to self-fulfilling crises. If all creditors roll over, the country can continue operating normally. But if creditors refuse to roll over, the country cannot pay, validating the initial pessimism.

This creates **multiple equilibria**:

1. **Good equilibrium** - Creditors are confident, roll over short-term debt, capital continues flowing in, exchange rate stable, economy grows
2. **Bad equilibrium** - Creditors panic, refuse to roll over, capital flows out, exchange rate crashes, economy contracts

The jump from good to bad equilibrium can be triggered by small shocks: a piece of bad news, contagion from another country, or a shift in global risk sentiment. The crisis appears disproportionate to its trigger because the trigger merely selects which equilibrium prevails.

### Transmission Through the Financial System

Sudden stops transmit through balance sheet effects and credit contraction.

**Corporate balance sheets.** When the exchange rate depreciates, firms with foreign currency debt see their liabilities increase relative to their assets. This reduces net worth, limits ability to borrow, and forces investment cutbacks.

**Bank balance sheets.** Banks may have their own foreign currency exposure, or may have lent to firms that do. Either way, depreciation impairs bank capital. This reduces lending capacity precisely when the economy needs credit most.

**Credit crunch dynamics.** Impaired corporate and bank balance sheets together produce a credit crunch. Investment collapses because the financial system cannot intermediate at any interest rate, not because rates are high per se. That is why monetary easing may not work in EM crises.

### Contemporary Sudden Stops: Turkey 2018, Sri Lanka 2022, Egypt 2023

Original sin, sudden stops, and balance sheet crises continue to generate crises. Three recent episodes illustrate.

**Turkey 2018: The Lira Crisis**

Turkey entered 2018 with classic sudden stop vulnerabilities: a large current account deficit, heavy corporate dollar debt, and short-term external obligations exceeding reserves. The trigger combined Fed tightening (stronger dollar globally), domestic policy missteps (President Erdogan pressuring the central bank to keep rates low despite inflation), and a diplomatic dispute with the United States.

*The dynamics:*

* Lira lost more than a third of its value between January and August 2018 (monthly averages of 3.8 and 5.9 per dollar)
* Corporate balance sheets deteriorated sharply: firms with dollar debts, lira revenues saw debt burdens nearly double
* Banks' NPLs surged as corporate borrowers defaulted
* The central bank was forced to raise rates to 24% to stabilize the currency, which crushed domestic demand

*The money view lesson:* Turkey exemplified "fear of floating" in reverse. The government *wanted* to let the lira fall rather than raise rates, but balance sheet vulnerabilities made depreciation devastating. Corporate dollar debts accumulated during the cheap-dollar years of 2010-2017 became a trap. No amount of central bank lira provision could address the dollar shortage on corporate balance sheets.

*The aftermath:* Turkey avoided an IMF program (politically toxic domestically) through heterodox policies: capital flow management, pressure on banks to lend, creative reserve accounting. The economy muddled through but at the cost of persistent inflation (80%+ in 2022), financial repression, and diminished growth potential.

**Sri Lanka 2022: Sovereign Default and Social Collapse**

Sri Lanka's 2022 crisis was more severe: a full sovereign default combined with economic and political collapse. The proximate causes were COVID (tourism collapse), policy errors (tax cuts, fertilizer ban), and the commodity price shock from Ukraine. But the underlying vulnerability was familiar: excessive dollar debt, inadequate reserves, and a pegged exchange rate that delayed adjustment too long.

*The timeline:*

* 2020-2021: COVID devastated tourism (\~10% of GDP); remittances fell
* Early 2022: Reserves depleted to \~$2 billion vs. $7 billion in debt service due
* April 2022: Sri Lanka defaulted on external debt, its first sovereign default since independence in 1948
* May-July 2022: Fuel shortages, food inflation, and mass protests forced Prime Minister Mahinda Rajapaksa to resign (May) and President Gotabaya Rajapaksa to flee (July)
* September 2022: IMF staff-level agreement ($2.9 billion), approved by the Board in March 2023

*The balance sheet dynamics:*

* Foreign currency debt: $51 billion (external) + dollarized domestic debt
* Reserves: $2 billion (cover for < 1 month of imports)
* Original sin extreme: virtually all external debt in foreign currency

*The money view lesson:* Sri Lanka borrowed in dollars to finance consumption (not investment), depleted reserves defending an unsustainable peg, and when the sudden stop came, had no buffer. The crisis was also humanitarian, with food and fuel shortages affecting millions.

**Egypt 2022-2024: Serial Devaluations and IMF Dependency**

Egypt has experienced rolling balance sheet stress requiring repeated IMF interventions (2016, 2020, 2022, 2024), with structural vulnerabilities producing serial crises even under IMF support.

*The vulnerabilities:*

* Large current account deficit (\~3-4% of GDP) funded by portfolio inflows ("hot money" in local currency bonds)
* External debt reached about $165 billion by mid-2023
* Significant food import dependence (wheat from Russia/Ukraine)
* Tourism-dependent service exports (volatile)

*The 2022-2024 crisis:*

* Ukraine war: food/fuel import costs spiked; tourism revenues (Russian tourists) collapsed
* Fed tightening: foreign investors fled Egyptian pound bonds
* Pound devalued 50% (from 15.7 to 30+ per dollar) in multiple steps
* IMF extended new $3 billion facility (December 2022), expanded to $8 billion (March 2024)
* UAE investment ($35 billion in 2024) provided a lifeline

*The pattern:* Egypt's crises follow a familiar script: accumulate dollar liabilities during global risk-on, suffer outflows during global risk-off, devalue, seek IMF support, stabilize temporarily, repeat. The structural problem, original sin combined with dependence on volatile capital flows, remains unresolved.

*The money view lesson:* IMF programs address liquidity but not Egypt's position in the hierarchy. Egypt floated the pound in March 2024 as part of the expanded IMF program, but its access to dollar funding remains contingent on global risk appetite. Each crisis prompts adjustment, but the structural position, borrowing short in dollars to fund current account deficits, persists.

**Common Themes Across Contemporary Crises**

These three cases, along with Argentina (2018), Pakistan (2022-2023), and Ghana (2022), share consistent patterns:

1. **Dollar debt remains the vulnerability**: Despite decades of warnings, EM corporates and sovereigns continue accumulating dollar debt during good times. Cheaper borrowing overwhelms the risk.
2. **Fed tightening is the trigger**: The 2013 "taper tantrum," 2018 rate hikes, and 2022-2023 tightening cycle each triggered EM stress. The dollar's centrality means Fed policy is de facto global monetary policy for peripheral countries.
3. **Reserves help but aren't sufficient**: Turkey, Sri Lanka, and Egypt all held reserves before their crises. But reserves depleted faster than expected, and in Sri Lanka's case, were inadequate from the start. The "Greenspan-Guidotti rule" (reserves = short-term debt) is necessary but not sufficient.
4. **IMF remains the crisis lender**: Despite Chinese lending growth and regional arrangements, the IMF remains essential. Egypt's 2024 program, Sri Lanka's 2022 program, and Pakistan's serial programs demonstrate continued dependence on traditional multilateral support.
5. **Political constraints matter**: Turkey's refusal to approach the IMF, Sri Lanka's delayed adjustment, Egypt's resistance to a full float: political constraints interact with economic vulnerabilities in each case.

## 21.5 The Balance Sheet Approach to Crises

### Framework and Concepts

The **balance sheet approach** to financial crisis, developed by Allen et al. (2002), provides a framework for analyzing EM vulnerabilities. Unlike traditional analysis focused on flow variables (current account deficits, fiscal balances), it examines stocks of assets and liabilities across sectors.

**Sectoral balance sheets.** The framework distinguishes:

1. **Government sector** (including central bank) - foreign reserves as assets; domestic and foreign debt as liabilities
2. **Financial sector** (banks) - loans as assets; deposits and external borrowing as liabilities
3. **Corporate sector** - real and financial assets; bank loans and external debt as liabilities
4. **External sector** - the consolidated claims and liabilities of non-residents

**Key mismatches.** The framework identifies four types of dangerous mismatches:

1. **Maturity mismatch** - Short-term liabilities funded with illiquid long-term assets. Creates rollover risk if creditors refuse to refinance.
2. **Currency mismatch** - Liabilities in foreign currency with revenues in domestic currency. Creates balance sheet damage when the exchange rate depreciates.
3. **Capital structure mismatch** - Heavy reliance on debt rather than equity. Leaves less cushion to absorb revenue shocks.
4. **Solvency risk** - Assets insufficient to cover liabilities even in present value terms.

### Cross-Sectoral Transmission

Problems in one sector cascade to others, eventually triggering an external crisis. Consider two transmission channels:

**Government to banks.** Concerns about government solvency (perhaps from fiscal deficits, contingent liabilities, or political instability) destabilize confidence in banks that hold government debt. Depositors run, and if deposits are foreign currency denominated or the exchange rate is fixed, the run becomes a drain on reserves.

**Corporates to banks to external.** A terms of trade shock (oil price increase for importers) or exchange rate depreciation damages corporate balance sheets. This impairs the loan portfolios of banks that lent to corporates. Bank distress triggers deposit withdrawals and refusal of foreign banks to roll over credit lines. The combination drains reserves and may force abandonment of an exchange rate peg.

**The role of debts among residents.** Debts among residents, which net out of the aggregate country balance sheet, can still generate external crises. If domestic banks hold government debt and depositors lose confidence, the deposit run may be a demand for foreign exchange. If domestic banks lent to domestic corporates in foreign currency, corporate default impairs bank capital and triggers external pressure.

### Data and Early Warning

Operationalizing the balance sheet approach requires data on:

* Maturity structure of debt (government, financial sector, corporate)
* Currency composition of debt and assets
* Inter-sectoral exposures (bank holdings of government debt, bank lending to corporates)
* Foreign exchange reserves and short-term external debt

These data are often unavailable or available only with lags, limiting early warning capability. But when available, balance sheet data can identify building vulnerabilities before they reach crisis proportions.

## 21.6 Policy Options for Emerging Markets

### Reserve Accumulation

The most common response to original sin and sudden stop vulnerability is reserve accumulation. By holding large stocks of foreign exchange, countries can:

1. **Self-insure** against sudden stops by having resources to repay short-term debt even if creditors refuse to roll over
2. **Intervene** to smooth exchange rate movements without depleting reserves to dangerous levels
3. **Signal** credibility to foreign investors, potentially reducing the probability of speculative attack

**Costs of reserve accumulation.** Reserves are costly:

* **Opportunity cost** - The yield on reserves (typically invested in US Treasuries) is well below the cost of borrowing for most EMEs. The spread may be 300-500 basis points.
* **Valuation losses** - If domestic currency appreciates, the domestic value of reserves falls
* **Sterilization costs** - To prevent reserve accumulation from expanding the monetary base, central banks must issue domestic debt at higher rates than reserves earn

**How much is enough?** Traditional metrics suggested reserves should cover 3 months of imports. The Greenspan-Guidotti rule sets a higher bar: reserves should cover short-term external debt (one year or less maturity). The 1997-1998 crisis showed this ratio was the best predictor of crisis severity.

{% hint style="warning" %}
**The Mehrling Insight: Why Reserves Are Not What They Seem**

The standard narrative treats reserves as a war chest: dollars stored in a vault, available when needed. The money view gives a less comfortable account. When Bank Indonesia holds $130 billion in "reserves," what it actually holds is a deposit at the Federal Reserve Bank of New York (or, more commonly, US Treasury securities in custody at the FRBNY). These reserves are *claims on the US financial system*, subject to the hierarchy of dollar access. In a normal EM stress episode (capital outflows, currency pressure), Bank Indonesia can sell Treasuries and deploy the dollars to defend the rupiah. But in a *systemic* crisis, when every EM central bank tries to sell Treasuries simultaneously, the dynamics change. Treasury liquidity can thin. More fundamentally, if Western governments freeze a central bank's assets (as the US, EU, and G7 allies did to Russia's $300 billion in 2022), the reserves simply vanish from the perspective of the holder. Self-insurance through reserves, Mehrling would argue, is insurance *within* the hierarchy: it works as long as the hierarchy holds, and it fails when the hierarchy breaks down. This is why the hierarchy of dollar access (Chapter 16; swap lines, FIMA Repo, regional arrangements) matters as much as reserves themselves. The institutional plumbing of access determines whether reserves can actually be deployed when they are needed most.
{% endhint %}

### Capital Account Management

Some countries have used capital controls or prudential measures to limit the accumulation of dangerous liabilities:

**Inflow controls.** Chile's encaje (unremunerated reserve requirement) of the 1990s required that a percentage of capital inflows be deposited at the central bank without interest. This taxed short-term inflows more than long-term ones, shifting the composition of inflows toward longer maturities.

**Outflow controls.** Malaysia's September 1998 controls restricted outflows during crisis, buying time for domestic adjustment. The academic verdict is mixed, but the controls did not appear to prolong the crisis.

**Prudential measures.** Limits on foreign currency lending by banks, restrictions on foreign currency borrowing by corporates, and countercyclical capital requirements can reduce the buildup of vulnerabilities without formal capital controls.

### Exchange Rate Regimes

The choice of exchange rate regime involves trade-offs that depend on the degree of original sin:

**Hard pegs** (currency boards, dollarization) - Eliminate exchange rate volatility but also eliminate monetary policy autonomy and lender of last resort capacity. May be appropriate for very small, very open economies.

**Floating rates** - Allow monetary policy autonomy and shock absorption but expose balance sheets to exchange rate volatility. The balance sheet damage from depreciation may limit the shock absorption benefits.

**Managed floats** - The dominant regime in practice. Countries allow some exchange rate flexibility while intervening to smooth volatility. This requires adequate reserves and credible intervention rules.

### Developing Domestic Markets

The ultimate solution to original sin would be to develop domestic currency bond markets deep enough to absorb both domestic and international demand, but the institutional prerequisites are formidable, and the few success stories show how slow the process is.

**Building the yield curve from scratch.** A functioning bond market requires a government yield curve that provides pricing benchmarks across maturities. Consider Mexico: in the late 1990s, the Mexican government could issue peso-denominated bonds only at maturities of up to one year. The Secretariat of Finance deliberately extended the curve, introducing fixed-rate 3-year bonos (January 2000) and then longer maturities, until the curve reached 30 years in less than a decade. Each extension required convincing investors, first domestic pension funds (the Afores system, created in 1997) and then foreign asset managers, that inflation and devaluation risks at longer horizons were manageable. By 2024, Mexico had a complete yield curve to 30 years. Yet this twenty-five-year project of market construction still leaves Mexico with an OSIN index of 0.98 for external debt: the domestic market serves domestic needs, but international borrowing remains overwhelmingly in dollars.

**Creating domestic institutional demand.** The deepest local currency markets (Korea, Malaysia, Chile) all share a common institutional foundation: mandatory pension or provident fund systems that generate structural demand for long-duration local currency assets. Korea's National Pension Service anchors the Korean Treasury bond market. Chile's AFP system (private pension administrators), created in 1981, was a deliberate strategy to simultaneously develop capital markets and provide retirement savings. Without such institutional investors, local currency bond markets depend on foreign portfolio flows, which, as the concept of original sin redux shows, creates its own fragilities.

**The role of the central bank as market architect.** Successful market development requires the central bank to serve as market architect as well as monetary authority, establishing primary dealer systems, building real-time gross settlement infrastructure, and creating repo markets where local currency government bonds serve as collateral. Brazil's BCB built an electronic custody and settlement system for government securities (SELIC) and a primary dealer system that gave international banks incentive to make markets in Brazilian real-denominated bonds. India's RBI has gradually opened its government bond market to foreign investors through the "Fully Accessible Route" (2020), while simultaneously developing a domestic repo market where government securities serve as collateral. Without functioning dealer infrastructure, no bond market can achieve the liquidity that international investors require.

{% hint style="warning" %}
**Key Constraint: The Credibility Trap**

Emerging market economies face a self-reinforcing credibility trap. International investors are reluctant to hold assets denominated in peripheral currencies because those currencies lack deep, liquid markets and carry inflation and depreciation risk. But EM economies cannot develop deep markets without attracting international participation, and they cannot build a track record of currency stability without the market depth that absorbs shocks. Breaking this cycle requires decades of institution-building: establishing credible central banks, developing pension systems that create domestic demand for long-term local currency bonds, and maintaining macroeconomic discipline through political cycles. There are no shortcuts: financial development is a slow accumulation of trust.
{% endhint %}

Progress has been real but uneven.

## 21.7 The Global Financial Safety Net

### Swap Lines and Emergency Lending

The 2008-2009 global financial crisis (analyzed in Chapter 19) revealed that even countries with strong fundamentals could face sudden stops due to global risk aversion. The policy response included expansion of the global financial safety net. Chapter 16 examined central bank cooperation in detail; here I focus on how the safety net serves (and fails to serve) emerging markets:

**Federal Reserve swap lines.** During the crisis, the Fed established currency swap lines with major central banks and extended them to several EMEs (Mexico, Brazil, Korea, Singapore). These provided dollar liquidity without countries needing to hold reserves in advance.

**IMF reform.** The IMF introduced new lending facilities:

* Flexible Credit Line (FCL) for countries with strong fundamentals
* Precautionary Credit Line (PCL) for countries with sound policies but some vulnerabilities
* These instruments provide pre-approved access to large-scale financing

**Regional arrangements.** The Chiang Mai Initiative in Asia and the European Stability Mechanism in Europe provide regional liquidity support, supplementing the IMF.

### The COVID-19 Test and Post-COVID Evolution

The March 2020 COVID shock stress-tested the global safety net. Within weeks, foreign investors withdrew heavily from emerging-market assets. The response showed both strengths and persistent limitations.

**What worked:**

*Fed swap lines activated instantly:* The Fed reactivated and expanded swap lines within days, including new temporary facilities:

* **FIMA Repo Facility**: Allowed foreign central banks to repo Treasury holdings for dollars, extending dollar access beyond swap line recipients
* **Swap line expansion**: Added new recipients (Australia, Brazil, Korea, Mexico, Singapore, Sweden, Denmark, Norway, New Zealand)
* **Capped quantities**: The nine new lines were capped at $60 billion (Australia, Brazil, Korea, Mexico, Singapore, Sweden) or $30 billion (Denmark, Norway, New Zealand); only the five standing lines are uncapped

*IMF responded at scale:* The IMF provided emergency financing to 80+ countries via:

* Rapid Financing Instrument (RFI) and Rapid Credit Facility (RCF) with minimal conditionality
* $650 billion Special Drawing Rights (SDR) allocation (August 2021), the largest in IMF history
* Debt Service Suspension Initiative (DSSI) for low-income countries

*Market stabilization:* EM bond spreads spiked in March 2020 but recovered quickly as liquidity provisions took effect. Unlike 1997-1998 or 2008, no major EM experienced sovereign default or currency collapse *due to COVID itself* (Sri Lanka's 2022 default had deeper roots).

**What the COVID response revealed:**

1. **Fed selectivity persists**: The FIMA Repo Facility technically made dollars available to any central bank holding Treasuries, but meaningful access (swap lines) remained limited to 14 central banks. Countries like Turkey, South Africa, and Indonesia did not receive Fed swap lines despite acute stress. The hierarchy remained.
2. **Speed matters more than scale**: The Fed's *announcement* of facilities stabilized markets before major drawdowns occurred. A credible backstop mattered more than actual lending.
3. **SDR allocation is slow and political**: The $650 billion SDR allocation took 17 months to approve (the US Treasury blocked it through 2020) and distributed funds based on IMF quotas, so rich countries received most. "Rechanneling" SDRs to vulnerable countries remained aspirational.
4. **China filled some gaps**: During 2020-2022, PBOC swap lines, Chinese policy bank lending, and bilateral support (to Sri Lanka, Pakistan, Argentina) provided alternative liquidity. China's role in EM crisis finance is growing, creating strategic dependencies but also genuine alternatives.

### The Evolving Safety Net Architecture (2024)

As of 2024, the global financial safety net comprises multiple, imperfectly coordinated layers.

**Scale and speed of response:**

| Layer                         | Size                                                                     | Speed                    |
| ----------------------------- | ------------------------------------------------------------------------ | ------------------------ |
| **Fed swap lines**            | Unlimited for 5 standing-line CBs; $30-60B each for 9 others (14 in all) | Hours                    |
| **FIMA Repo**                 | Treasury holdings limit                                                  | Days                     |
| **IMF lending**               | \~$1 trillion                                                            | Weeks-months             |
| **IMF SDRs**                  | SDR 660 billion (\~$900 billion) cumulative allocations                  | Months-years (political) |
| **Regional (CMI-M, ESM)**     | $240B (CMI), €700B (ESM)                                                 | Weeks                    |
| **China bilateral**           | $200B+ swap lines                                                        | Days-weeks               |
| **Self-insurance (reserves)** | $8 trillion (EM total)                                                   | Immediate                |

**Conditions and access:**

| Layer                         | Conditionality                        | Access                                           |
| ----------------------------- | ------------------------------------- | ------------------------------------------------ |
| **Fed swap lines**            | None                                  | Selective (major economies, geopolitical allies) |
| **FIMA Repo**                 | None                                  | Universal (if holding Treasuries)                |
| **IMF lending**               | Variable (RFI minimal; EFF extensive) | Universal                                        |
| **IMF SDRs**                  | None                                  | Based on quotas                                  |
| **Regional (CMI-M, ESM)**     | Usually linked to IMF                 | Regional members                                 |
| **China bilateral**           | Case-by-case                          | Bilateral relationships                          |
| **Self-insurance (reserves)** | None                                  | Own reserves                                     |

**Key developments since 2020:**

* **IMF Resilience and Sustainability Trust (RST)**: New facility (2022) for climate and pandemic-related balance of payments needs, an attempt to address long-term structural issues as well as crisis lending.
* **Common Framework for Debt Treatment**: G20 initiative to coordinate debt restructuring for low-income countries, attempting to include China. Limited success (Zambia took 3+ years to restructure; Chad, Ethiopia, Ghana prolonged negotiations).
* **China as alternative lender**: Chinese official creditors held $148 billion of recorded bilateral claims on low- and middle-income countries at end-2024 (about $170 billion including Chinese commercial banks), according to the World Bank's International Debt Statistics, with AidData estimating a further \~$385 billion of unreported debt. This creates restructuring complications (China absent from Paris Club) but also provides crisis lending when Western sources are unavailable (Argentina 2023 PBOC swap line to meet IMF payments).
* **Surcharge reform debate**: IMF surcharges (extra fees for large/prolonged borrowers) increasingly criticized as counterproductive because they tax countries precisely when they're most stressed. Argentina, Egypt, and others have pushed for reform.

### Limitations

The global safety net remains incomplete:

* **Stigma** - Countries are reluctant to seek IMF assistance, fearing market reaction. Turkey's refusal to approach the IMF in 2018-2023 (despite obvious need) shows stigma's power.
* **Conditionality** - IMF programs impose policy conditions that may be politically difficult. Egypt's serial programs show countries accepting conditionality repeatedly but not fully implementing structural reforms.
* **Limited access** - Even enhanced quotas may be insufficient for large, integrated EMEs. Argentina's $57 billion 2018 program (the largest in IMF history) proved inadequate.
* **Selectivity** - Fed swap lines reflect geopolitical as much as economic criteria. Countries like Turkey (NATO ally but problematic relations) and South Africa (BRICS member) are excluded despite clear dollar needs.
* **Coordination failures** - Multiple creditors (Paris Club, China, private bondholders) complicate restructuring. The Common Framework has underperformed expectations.
* **Moral hazard concerns** - Easy access to crisis lending may reduce incentives for prudent reserve accumulation and debt management. But the alternative, letting crises escalate, is worse.

The fundamental constraint remains: countries at the periphery cannot create dollars. Their access to dollar liquidity depends on relationships with the center: the Fed, the IMF, and dollar-based capital markets. The safety net has improved since 1997, but it remains a patchwork reflecting the power asymmetries of the international monetary system.

## 21.8 The Money View of Emerging Market Finance

### Hierarchy and Survival Constraint

A country's position in the monetary hierarchy determines the character of its survival constraint. For the United States, the constraint is loosely binding: the Fed can always create dollars to meet dollar obligations. For EMEs, it is tightly binding: they cannot create the dollars they need.

This asymmetry shapes emerging market finance in four ways:

* **Borrowing patterns** - EMEs must borrow in dollars because that's what creditors will accept
* **Crisis dynamics** - EME crises are essentially dollar shortage crises
* **Policy constraints** - EME monetary policy must account for dollar liquidity, not just domestic conditions
* **Reserve behavior** - EMEs accumulate reserves as a buffer against dollar shortages

### Dealer Function and International Liquidity

In the money view, dealers provide liquidity by standing ready to buy and sell, absorbing imbalances onto their own balance sheets. The international monetary system has genuine dealers for core currencies: the dozen or so major FX dealers (JPMorgan, Citibank, Deutsche Bank, UBS, and others) maintain continuous two-way markets in EUR/USD, USD/JPY, and GBP/USD, with bid-ask spreads of fractions of a basis point and daily volumes in the hundreds of billions. But for peripheral currencies, dealer commitment is thin and conditional. The same desk that makes markets in EUR/USD allocates far less balance sheet to Turkish lira or Nigerian naira. When stress emerges, dealers withdraw from peripheral currencies first, widening spreads, reducing position limits, and raising margin requirements, because these positions consume balance sheet capacity that could be more profitably deployed in core-currency markets.

This asymmetry in dealer capacity explains why peripheral currency markets are fragile. The Mexican peso can depreciate 5% in a single trading session not because Mexico's fundamentals changed overnight, but because the dealers who normally absorb order flow have pulled back. The exchange rate overshoots because no one stands ready to absorb selling pressure at intermediate prices. When the Bank of Mexico intervenes by selling dollar reserves, it is essentially substituting its own balance sheet for the absent dealer capacity. That response is costly and ultimately limited, since the central bank's reserves are finite while the potential selling pressure from foreign investors is not.

The dollar funding cost channel amplifies these dynamics. When global risk appetite declines, the cost of borrowing dollars rises for EM-based banks and corporates. The cross-currency basis (the premium that non-US institutions pay to swap local currency funding into dollars) widens sharply during stress, as it did in March 2020. This basis reflects the scarcity of dealer balance sheet capacity: the global banks that intermediate cross-currency swaps must commit their own capital to bridge the gap between peso lenders and dollar borrowers, and when their balance sheets are under strain, they charge more or refuse to transact entirely. The result is a procyclical tightening of dollar funding conditions for peripheral borrowers just when they need dollar liquidity most.

### Credit and the Hierarchy

The hierarchy of money is ultimately a hierarchy of credit, and in the money view, it operates through the concrete mechanisms of collateral valuation, margin setting, and funding access. Dollars are the most credible form of international settlement because dollar-denominated assets sit at the top of the collateral hierarchy: they receive the lowest haircuts in repo markets, the most favorable margin treatment at clearinghouses, and the widest acceptance as collateral for derivatives positions. A Brazilian bank that holds US Treasuries can fund them at the overnight repo rate; the same bank holding Brazilian government bonds must accept a larger haircut and pay a higher spread. This differential treatment is embedded in the operating procedures of clearinghouses like LCH and CME and in the risk policies of prime brokers at Goldman Sachs and Morgan Stanley, so the hierarchy is a matter of operational reality as well as perception.

Countries ascend the hierarchy by building credibility through institutions, policy track records, and market development. In the money view, credibility is also constructed through the slow accumulation of dealer relationships, collateral acceptance, and settlement infrastructure; it is not only a policy choice. Countries whose exports are invoiced in dollars, whose financial systems rely on dollar funding, and whose debts are dollar-denominated find it nearly impossible to build an alternative ecosystem. The dollar standard perpetuates itself through the rational behavior of dealers, not through conspiracy: they allocate scarce balance sheet capacity to the most liquid, lowest-risk positions, which by historical accumulation are overwhelmingly dollar-denominated.

***

## Summary

Emerging market finance operates under structural constraints arising from position in the international monetary hierarchy rather than domestic policy failures alone. Original sin creates aggregate currency mismatches that no amount of individual hedging can eliminate. Sudden stops can push countries from good equilibria to bad equilibria. Balance sheet vulnerabilities accumulate in predictable patterns and transmit across sectors in crisis.

These constraints explain the characteristic patterns of EME policy: reserve accumulation, fear of floating, occasional resort to capital controls. These policies are rational responses to structural position and do not reflect backwardness.

In the money view, these constraints come from the hierarchy of international credit. Countries at the center can create the money others need; countries at the periphery must earn or borrow it. Until this asymmetry is addressed, through reform of the international monetary system or through the slow process of EME financial development, the vulnerabilities described in this chapter will persist.

The policy challenge is to manage these vulnerabilities rather than ignore them. Reserve accumulation provides insurance but is costly. Capital flow management can shift the composition of inflows but cannot eliminate sudden stop risk. Domestic market development is the ultimate solution but requires decades of patient institution-building. Meanwhile EMEs operate as peripheral participants, subject to shocks that originate at the center and are amplified by their structural position. Chapter 23 examines South Africa as a detailed case study of these dynamics, showing how original sin, sudden stop vulnerability, and balance sheet mismatches play out in a specific emerging market context.

***

## Key Concepts

* **Original sin**: The inability of a country to borrow abroad in its own currency
* **Sudden stop**: An abrupt reversal of capital inflows to an emerging market
* **Currency mismatch**: A gap between foreign currency liabilities and foreign currency revenues or assets
* **Maturity mismatch**: Short-term liabilities funded with illiquid long-term assets
* **Balance sheet approach**: Analysis of crisis vulnerability through sectoral stocks of assets and liabilities
* **Monetary hierarchy**: The ranking of currencies by their acceptability in international settlement
* **Fear of floating**: The reluctance of EMEs to allow exchange rate flexibility due to balance sheet effects
* **Greenspan-Guidotti rule**: The guideline that reserves should cover short-term external debt

***

## Empirical Regularities

| Regularity                                                                               | Magnitude                                                                       | Source                                     |
| ---------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------- | ------------------------------------------ |
| Currency concentration of international securities, 1999-2001                            | 97% in five currencies                                                          | Eichengreen & Hausmann (2005)              |
| Developing country share of international debt issuance                                  | \~10% of issuance, under 1% of currency denomination                            | Eichengreen & Hausmann (2005)              |
| Short-term share of low- and middle-income countries' external debt, end-2024            | 27% ($2.4 trillion)                                                             | World Bank, International Debt Report 2025 |
| China's recorded official bilateral claims on low- and middle-income countries, end-2024 | $148 billion (31% of bilateral PPG debt); \~$170 billion incl. commercial banks | World Bank IDS                             |
| Chinese official lending commitments (cumulative flows, not stocks)                      | $843 billion (2000-17); $1.34 trillion (2000-21, v3.0)                          | AidData                                    |
| Unreported ("hidden") debt owed to China                                                 | \~$385 billion                                                                  | AidData                                    |
| Net private capital flow swing to five Asian crisis economies, 1996-97                   | $105 billion (about 11% of GDP)                                                 | Radelet and Sachs (1998)                   |
| Polish disinflation under inflation targeting, 1993 to 2003                              | 35% to under 4%                                                                 | National Bank of Poland                    |

*Magnitudes are order-of-magnitude figures as of the dates shown. Stock series are revised and restated; refresh them from the source before classroom use. Series identifiers are given in the* [*Data Exercises*](/textbooks/global-finance-a-money-view/back-matter/appendix-data-exercises.md) *appendix.*

***

## Further Reading

* Eichengreen, B., Hausmann, R., and Panizza, U. (2003). "The Pain of Original Sin." In *Other People's Money: Debt Denomination and Financial Instability in Emerging Market Economies*, University of Chicago Press.
* Calvo, G. (1998). "Capital Flows and Capital-Market Crises: The Simple Economics of Sudden Stops." *Journal of Applied Economics* 1(1): 35-54.
* Chang, R. and Velasco, A. (2000). "Liquidity Crises in Emerging Markets: Theory and Policy." In *NBER Macroeconomics Annual 1999*, MIT Press.
* Allen, M., et al. (2002). "A Balance Sheet Approach to Financial Crisis." *IMF Working Paper* 02/210.
* Calvo, G. and Reinhart, C. (2002). "Fear of Floating." *Quarterly Journal of Economics* 117(2): 379-408.

***

## Review Questions

1. Why is original sin persistent across countries and time? What factors might allow a country to achieve "redemption"?
2. Explain how a sudden stop can be self-fulfilling. What is the role of the illiquidity ratio in determining vulnerability?
3. How do problems in one sector of the economy transmit to others, eventually causing an external crisis? Give specific examples using the balance sheet approach.
4. Evaluate the costs and benefits of reserve accumulation as a policy response to original sin. What determines "optimal" reserve levels?
5. From a money view perspective, what makes EME currencies structurally different from reserve currencies? How does this affect policy options?

***

## Discussion Questions

1. The chapter argues that original sin is not primarily a consequence of poor domestic policy but reflects structural features of the international monetary hierarchy. If this is correct, what are the implications for the standard policy advice given to emerging markets, namely that sound macroeconomic management will eventually allow them to borrow abroad in their own currencies? Consider countries like Chile and Korea that have made significant progress in developing local-currency bond markets. Does their experience support or complicate the structural interpretation?
2. Emerging markets accumulate vast foreign exchange reserves as self-insurance against sudden stops, yet this strategy is costly: reserves earn low returns while the country pays high rates on external borrowing. From a money view perspective, why can't this problem be solved through a reformed global financial safety net (for example, by expanding IMF facilities or making Fed swap lines universally available)? What does the continued preference for self-insurance reveal about the political economy of international liquidity provision and the credibility of multilateral backstops?
3. The chapter describes how the COVID-19 shock tested the global financial safety net and revealed continued selectivity in Fed swap line provision. Countries like Turkey, South Africa, and Indonesia did not receive swap lines despite acute dollar stress. Using the money view's concept of the hierarchy of central banks, explain why the Fed's decisions about swap line access are inherently political. Should swap lines be converted into a rules-based facility with transparent eligibility criteria, or does discretion serve a useful purpose?
4. The balance sheet approach to crisis analysis examines how currency mismatches, maturity mismatches, and leverage interact across sectors (government, banks, corporations, households) to transmit and amplify shocks. Apply this framework to a specific contemporary emerging market of your choice. Identify the key balance sheet vulnerabilities, trace how a sudden stop would propagate across sectors, and evaluate whether the policy toolkit available (reserves, capital flow management, exchange rate flexibility) is adequate to manage the risks.

***

## Exercises

**Exercise 21.1: Measuring Original Sin**

Country X has issued $10 billion in international securities, of which $8 billion are denominated in US dollars, $1.5 billion in euros, and $500 million in country X's domestic currency.

a) Calculate country X's OSIN index. b) If foreign investors have issued $200 million in country X's currency, recalculate the index accounting for swap opportunities. c) What does your answer imply about country X's aggregate currency mismatch?

**Exercise 21.2: Illiquidity Ratios**

Country Y has:

* Foreign exchange reserves: $50 billion
* Short-term external debt: $60 billion
* M2: $200 billion
* Current account deficit: $20 billion/year

a) Calculate the short-term debt to reserves ratio. What does it imply about vulnerability? b) Calculate the M2 to reserves ratio. What additional vulnerability does this capture? c) If half of M2 were held as dollar deposits, how would this affect your analysis?

**Exercise 21.3: Sudden Stop Scenario**

Country Z has been receiving capital inflows of $30 billion annually to finance a current account deficit of the same amount. Foreign exchange reserves are $40 billion.

a) What must happen to the current account if capital inflows suddenly fall to zero? b) What mechanisms produce the required adjustment? Consider both price (exchange rate) and quantity (absorption) channels. c) How do balance sheet effects from depreciation complicate the adjustment?

**Exercise 21.4: Sectoral Balance Sheet Analysis**

Construct a simplified balance sheet matrix for an emerging economy with:

* Government: $20 billion foreign reserves, $15 billion domestic debt, $10 billion external debt
* Banks: $25 billion loans to corporates and $3 billion of domestic liquid assets; $20 billion deposits, $8 billion external borrowing
* Corporates: $30 billion assets, $25 billion bank loans (50% in foreign currency)

a) Identify the currency mismatches in each sector. b) Trace how a 30% depreciation would affect each sector's balance sheet. c) How might problems cascade from corporates to banks to the government?

**Exercise 21.5: Reserve Adequacy**

Country W is considering how much reserves to hold. The government must pay 6% to borrow externally and earns 2% on reserves invested in US Treasuries. Short-term external debt is $40 billion. M2 is $150 billion, of which 20% is foreign currency deposits.

a) Calculate the annual cost of holding reserves equal to short-term debt. b) What additional reserves would be needed to cover the foreign currency deposits? c) How should policymakers weigh these costs against the insurance value of reserves?