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2002, Is foreign exchange market intervention an alternative to monetary policy? Evidence from Japan, working paper

By Rasmus Fatum and Michael Hutchison

Abstract

alone. We thank participants at the West Coast Japan Economic Seminar at UCSD for valuable comments. We are also appreciative of research assistance by Stephanie Hendrick and for help Japanese official intervention in the foreign exchange market is of by far the largest magnitude in the world, despite little or no evidence that it is effective in moving exchange rates. Up until recently, however, official data on intervention has not been available for Japan. This paper investigates the effectiveness of intervention using recently published official daily data and an event study methodology. The event study better fits the stochastic properties of intervention and exchange rate data, i.e. intense and sporadic bursts of intervention activity juxtaposed against a yen/dollar rate continuously changing, than standard time-series approaches. Focusing on daily Japanese and US official intervention operations, we identify separate intervention “episodes ” and analyze the subsequent effect on the exchange rate. Using the non-parametric sign test and matched-sample test, we find strong evidence that sterilized intervention systemically affects the exchange rate in the short-run. This result holds even when intervention is not associated with (simultaneous) interest rate changes and regardless of whether or not intervention is “secret ” (i

Year: 2011
OAI identifier: oai:CiteSeerX.psu:10.1.1.194.9137
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