Case Study: The 1997 Asian Financial Crisis
A textbook currency crisis. Through the mid-1990s, fast-growing Asian economies ran pegged exchange rates against the US dollar, opened up to free capital inflows, and still tried to run their own monetary policy. That trio is exactly what the trilemma forbids, so something had to give. Weak bank supervision and heavy unhedged dollar borrowing then made the break far worse. When confidence reversed in 1997, Thailand burned through its reserves defending the baht and floated it on 2 July 1997, the peg collapsed, and the panic spread across the region in a sudden stop.
Why it matters
A peg is only as credible as the reserves behind it. When borrowers owe dollars but earn local currency, a falling peg detonates a currency mismatch, because every drop in the currency inflates their debt and deepens the panic. Capital that rushed in then rushes out all at once, reserves drain in days rather than years, and the central bank is forced to let the currency go.
Worked examples
A Thai firm in early 1997 borrows US dollars cheaply because the baht is pegged near 25 per dollar, and invests the money in baht assets. The baht is floated and falls toward 50 per dollar. What happens to the firm?
Its dollar debt roughly doubles in baht terms while its baht assets do not, so a currency mismatch wipes out its net worth. Multiply that across many firms and banks and you get mass insolvency, which is why the devaluation triggered a banking crisis rather than a mild adjustment.
Explain why the crisis jumped from Thailand to Indonesia and South Korea even though their situations differed.
Once the baht fell, investors re-priced the whole region as risky and pulled capital from any economy with a pegged rate and dollar-denominated debt. This contagion hit the Philippine peso, the Malaysian ringgit, the Indonesian rupiah, and the Korean won, forcing devaluations across the region. IMF-led rescue packages followed: roughly US$17 billion for Thailand in August 1997, about US$40 billion for Indonesia in October 1997, and around US$58 billion for South Korea in December 1997, the largest IMF programme to that point.
Common mistakes
- ✗The crisis struck out of nowhere. The vulnerabilities, a defended peg, open capital flows, and unhedged dollar borrowing, were built up for years before confidence reversed.
- ✗These were reckless, high-deficit governments. Several had budget surpluses and low inflation, so the weakness sat in private balance sheets and the banking system, not in fiscal policy.
- ✗A big enough pile of reserves can always hold a peg. Reserves are finite, and against a full-blown capital flight they drain in days, which is why Thailand floated the baht once its reserves were spent.
Revision bullets
- •A fixed rate, free capital flows, and monetary autonomy could not coexist, and weak banks deepened the break
- •Thailand floated the baht on 2 July 1997, then contagion spread to Indonesia and South Korea
- •Currency mismatch turned a devaluation into a sudden stop, and the IMF stepped in
Quick check
Why did the 1997 devaluations cause such severe damage to Asian banks and firms?
In trilemma terms, what combination set up the crisis?
Connected topics
Sources
- IMF (2000), Recovery from the Asian CrisisInternational Monetary Fund. Recovery from the Asian Crisis and the Role of the IMF. IMF Issues Brief, June 2000.Official IMF account of the 1997-98 crisis, the rescue programmes for Thailand, Indonesia, and Korea, and the lessons on pegs, capital flows, and bank weakness.
- Mishkin (2018), Ch. 19Mishkin, F. S. The Economics of Money, Banking, and Financial Markets. 12th ed. Pearson, 2018. ISBN 978-1-292-26885-9.Currency crises in emerging-market economies, the trilemma, foreign-exchange reserves, and the role of the IMF.