Consider the problem of a central bank that wants to manage the exchange rate between its domestic currency and a foreign one. The central bank can purchase and sell the foreign currency, and each intervention on the exchange market leads to a proportional cost whose instantaneous marginal value...

Global capital flows into emerging markets, including those in Asia, continue to be volatile. These capital flows generate both benefits and costs. The latter are associated with episodes of currency and banking crises like the 1997 Asian financial crisis and the 2008 global financial and...