Does the Currency Board Matter? U.S. News and Argentine Financial Market Reaction

Using a Generalized Autoregressive Conditional Heteroscedasticity (GARCH) model, we study the effects of the US monetary policy and macroeconomic announcements on Argentine money, stock and foreign exchange markets over the period January 1998 to July 2007. We show, first, that both types of news have a significant impact on all markets. Second, there are noticeable differences in reaction for different subsamples: Argentine money markets were more dependent on US news under the currency board than after it was abandoned as the floating exchange rate partly absorbs spillover effects from the US. Finally, we find that the US-dollar-denominated assets react less to US news than peso-denominated assets, which suggests that the currency board was not completely credible during its final years.