If offi cial interventions convey private information useful for price discovery in foreign-exchange markets, then they should have value as a forecast of near-term exchange-rate movements. Using a set of standard criteria, we show that approximately 60 percent of all U.S. foreign-exchange...

Using a set of standard success criteria, we show that Riksbank foreign-exchange interventions between 1993 and 2002 lacked forecast value; that is, the observed number of successes was not significantly greater - and usually substantially smaller - than the number one would anticipate given the...