A New Method for Identifying the Effects of Foreign Exchange Interventions

Chih‐nan Chen, Tsutomu Watanabe and Tomoyoshi Yabu

Journal of Money, Credit and Banking, 2012, vol. 44, issue 8, 1507-1533

Abstract: Central banks react even to intraday changes in the exchange rate; however, in most cases, intervention data are available only at a daily frequency. This temporal aggregation makes it difficult to identify the effects of interventions on the exchange rate. We apply the Bayesian Markov‐chain Monte Carlo (MCMC) approach to this endogeneity problem. We use “data augmentation” to obtain intraday intervention amounts and estimate the efficacy of interventions using the augmented data. Applying this new method to Japanese data, we find that an intervention of 1 trillion yen moves the yen/dollar rate by 1.8%, which is more than twice as much as the magnitude reported in previous studies applying ordinary least squares to daily observations. This shows the quantitative importance of the endogeneity problem due to temporal aggregation.

Date: 2012
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https://doi.org/10.1111/j.1538-4616.2012.00542.x

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Journal Article: A New Method for Identifying the Effects of Foreign Exchange Interventions (2012)
Working Paper: A New Method for Identifying the Effects of Foreign Exchange Interventions (2009)
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Persistent link: https://EconPapers.repec.org/RePEc:wly:jmoncb:v:44:y:2012:i:8:p:1507-1533

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