Recently, the political economy of macroeconomic policy choice has increasingly been guided by the simple prescriptions of the classic trilemma. For example, policymakers often speak of the hollowing out of exchange rate regimes in a world of unstoppable capital mobility; and policy autonomy and...

The exchange-rate regime is often seen as constrained by the monetary policy trilemma, which imposes a stark tradeoff among exchange stability, monetary independence, and capital market openness. Yet the trilemma has not gone without challenge. Some (e.g., Calvo and Reinhart 2001, 2002) argue...