The Asian Financial Crisis shook economists and policymakers in the late 1990s. Unlike earlier crises in Latin America or Europe, Asian economies appeared to have strong fundamentals: low fiscal deficits, high savings, and robust growth. Yet, currencies collapsed, banking systems failed, and economies plunged into recession.
The existing models of currency crises could not fully explain this:
- First generation models emphasized fiscal indiscipline, but many Asian governments had balanced budgets.
- Second generation models focused on expectations and government credibility, but crises were not purely self-fulfilling — there were structural weaknesses at play.
In response, economists developed third generation models, which highlight the role of financial sector vulnerabilities, private debt, and the interaction between banking and currency crises.
Core Idea of Third Generation Models
These models argue that currency crises are closely tied to the health of a country’s financial system. When banks and corporations borrow heavily in foreign currency but earn revenue in local currency, they create a dangerous mismatch. If the domestic currency depreciates, debt repayment costs soar, weakening balance sheets and leading to widespread defaults.
Thus, in third generation models, crises are driven not only by fiscal or monetary policies but also by structural financial weaknesses that magnify the impact of devaluation.
Mechanisms of Third Generation Models
- Excessive Foreign Borrowing
- Banks and corporations borrow heavily in foreign currencies, often due to low interest rates abroad.
- Governments sometimes encourage this through guarantees or weak regulation.
- Moral Hazard and Weak Supervision
- If investors believe governments will bail out banks (“too big to fail”), banks may take excessive risks.
- Weak regulatory institutions fail to control lending booms, especially in property and stock markets.
- Currency Depreciation Shock
- A sudden reversal of capital flows (investors pulling money out) causes currency depreciation.
- Firms and banks with large foreign-denominated debts see their liabilities skyrocket relative to assets.
- Twin Crises: Banking + Currency Collapse
- Banking systems become insolvent, leading to a credit crunch.
- Simultaneously, the currency collapses further as confidence evaporates.
- Economic Meltdown
- The combination of financial collapse, rising bankruptcies, and currency freefall leads to a deep economic crisis.
This “twin crisis” dynamic explains why the Asian crisis was so severe compared to earlier ones.
Key Features of Third Generation Models
- Balance Sheet Effects: Currency depreciation worsens private sector debt positions when liabilities are in foreign currency.
- Moral Hazard: Guarantees and implicit bailouts encourage excessive risk-taking by banks and firms.
- Financial Fragility: Weak regulation, poor banking supervision, and capital inflows create systemic vulnerabilities.
- Twin Crises: Currency crises and banking crises feed into each other, amplifying the downturn.
Real-World Examples
Asian Financial Crisis (1997–1998)
- Thailand, Indonesia, South Korea, and Malaysia experienced sudden reversals of capital inflows.
- Corporations and banks had borrowed heavily in U.S. dollars, but revenues were in local currency.
- When currencies depreciated, debts became unpayable. Entire banking sectors collapsed, GDP contracted sharply, and IMF bailouts imposed painful reforms.
Argentina (2001–2002)
- Although also linked to first and second generation elements, Argentina’s crisis had strong third generation features:
- Heavy reliance on dollar-denominated debt.
- Weak banks unable to withstand capital flight.
- Currency collapse that turned into a full-blown financial and social crisis.
Criticisms of Third Generation Models
- Overemphasis on Balance Sheets: Not all crises are driven by foreign debt mismatches; some stem more from fiscal or political issues.
- Variety of Mechanisms: Third generation models are less unified than earlier ones — some focus on moral hazard, others on banking fragility, making them more fragmented.
- Policy Ambiguity: The models highlight vulnerabilities but give less clear advice on prevention beyond “strengthen financial regulation.”
Conclusion
Third generation models represent a major step forward in understanding currency crises. They capture the complexity of modern financial systems, where private sector debt, banking fragility, and international capital flows interact with exchange rate dynamics. The Asian crisis revealed how dangerous foreign currency mismatches and weak regulation can be, leading to simultaneous banking and currency collapses.
Together, the three generations of models provide a layered understanding:
- First generation → crises caused by unsustainable fiscal/monetary policies.
- Second generation → crises driven by expectations and government trade-offs.
- Third generation → crises amplified by financial fragility and balance sheet effects.
As globalization deepens and capital flows become more volatile, the insights of third generation models remain highly relevant. They underscore the need for robust banking regulation, prudent foreign borrowing, and sound macroeconomic management to prevent future crises.