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Malaysia's 1997-98 crisis did not stem from government fiscal excess, since the country had run budget surpluses before the crisis. The trigger was a sudden reversal of short-term portfolio capital. Foreign and domestic investors fled together, collapsing the currency and the stock market even though macroeconomic fundamentals were comparatively sound.
Investors acting on what others are doing, not on fundamentals, turn a modest shock into a rout. Each seller's exit lowers asset prices and raises the expected loss for those who stay, which makes flight rational for individuals and destructive in aggregate. Once the stampede starts, the crisis validates the fears that began it.
After Thailand's baht collapsed, investors lumped Malaysia together with its neighbours as 'emerging Asia' and repriced regional risk wholesale. Malaysia was hit whatever its specific conditions. Contagion moves through investor perception and portfolio rebalancing, so a country's exposure depends on how markets classify it as much as on its own policies.
In September 1998, a year after the crisis began, Malaysia defied IMF orthodoxy. It pegged the ringgit at 3.80 to the dollar and closed the offshore ringgit market, and it locked in portfolio capital for twelve months. The controls came after the worst flight had already occurred. That timing complicates both claims that they saved the economy and claims that they wrecked it.
Capital controls should be judged by whether they let a government cut interest rates and expand credit without triggering further currency collapse. They are not a remedy on their own merits. Their value is buying policy space under the trilemma of fixed exchange rates, open capital accounts and independent monetary policy. The key question is what governments do with the space the controls create.
Malaysia's rebound after 1998 came mainly from Keynesian reflation, meaning fiscal stimulus and lower interest rates, together with a global electronics export boom. The controls alone do not explain it. The external demand surge was fortuitous, so crediting the controls alone overstates their effect. The cronyism the controls helped shelter also imposed longer-term costs.