If official 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...

We analyze the short-term price impact of Japanese foreign exchange intervention operations between 1991 and 2004, using official data from Japan's Ministry of Finance. Over the period as a whole, we find some evidence of a modest against the wind effect, but interventions do not have value as a...