We develop a simple formal framework to clarify the trade-offs involved in the choice between a fixed and flexible exchange-rate system. We then apply the framework to the CFA Zone countries in Africa, which have maintained a fixed parity with the French Franc since independence. Thanks to the...

We develop a simple formal framework to clarify the trade-offs involved in the choice between a fixed and flexible exchange-rate system. We then apply the framework to the CFA Zone countries in Africa, which have maintained a fixed parity with the French Franc since independence. Thanks to the...

The recent crisis has demonstrated that a financially open economy has many sources of vulnerability. Even when a country does its homework, it remains at the mercy of developments in external financial markets. So, one lesson is that policy needs to guard not just against domestic shocks, but...