In this paper we investigate the effects of central bank interventions (CBI) in a noise trading model with chartists and fundamentalists. We first estimate a model in which chartists extrapolate past returns and fundamentalists forecast a mean reverting dynamics of the exchange rate towards a...

Introduction -- The foreign exchange intervention -- The bid-ask spread: the market microstructure perspective -- The empirical decomposition of the bid-ask spread for exchange rates -- Government intervention on the spread -- References -- Appendices.

The coordination channel has recently been established as an additional means by which foreign exchange market intervention may be effective. It is conjectured that strong and persistent misalignments of the exchange rate are caused by a coordination failure among fundamentals-based traders. In...