ON AUGUST 15, 1971, United States President Richard Nixon announced that foreign-held U.S. dollars would no longer be convertible into gold--thus stripping away the last vestige of the international gold standard.1 This was the end of a policy that had been effective since 1931, and confirmed by the Bretton Woods accords at the end of World War II: that while United States citizens might no longer be allowed to cash in their dollars for gold, all U.S. currency held outside the country was to be redeemable at the rate of $35 an ounce. By doing so, Nixon initiated the regime of free-floating currencies that continues to this day.