We document a decline in the dollar share of international reserves since the turn of the century. This decline reflects active portfolio diversification by central bank reserve managers; it is not a byproduct of changes in exchange rates and interest rates, of reserve accumulation by a small...

Recent crises in emerging markets have been heavily driven by balance-sheet or net-worth effects. Episodes in countries as far-flung as Indonesia and Argentina have shown that exchange rate adjustments that would normally help to restore balance can be destabilizing, even catastrophic, for...