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Author:Wu, Thomas 

Working Paper
Asymmetries and state dependence: the impact of macro surprises on intraday exchange rates

The impact of news surprises on exchange rates depends in principle upon a number of factors including the state of the economy, institutional setting and nature of the expected policy response. These characteristics may lead to state-contingent asymmetric responses to news. In this paper we investigate the possible asymmetric response of intraday exchange rates (5-minute intraday JPY/USD) to macroeconomic news announcements during a very unusual period--Japan during 1999-2006 when the money market interest rate was effectively zero. We may think of this period as a "natural experiment" ...
Globalization Institute Working Papers , Paper 49

Working Paper
The Effect of Capital Controls and Prudential FX Measures on Options-Implied Exchange Rate Stability

Has the recent wave of capital controls and prudential foreign exchange (FX) measures been effective in promoting exchange rate stability? We tackle this question by studying a panel of 25 countries/currencies from July 1, 2009, to June 30, 2011. We calculate daily measures of exchange rate volatility, absolute crash risk, and tail risk implied in currency option prices, and we construct indices of capital controls and prudential FX measures taking into account the exact date when policy changes are implemented. Using a difference-in-differences approach, we find evidence that (i) tightening ...
Working Paper Series , Paper 2013-20

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