Yet the spread of exchange-rate instability around the world shows that more timely and accurate information may do little to prevent trouble.

ECONOMIST: Just what the doctors ordered?

To avoid exchange-rate instability, central bankers might do this gradually.

ECONOMIST: Why non-Europeans should care about EMU

Argentina is yet another country which has exchanged instability in its nominal economy, with a floating exchange rate, for instability in its real economy with a fixed exchange rate.

ECONOMIST: Letters