The Enlargement of the European Union and the Behavior of Real Exchange Rates

The authors further investigate the conditional variance and the persistence of real exchange rate (RER) shocks between Germany and some core European Union (EU) members from January, 1973 through 2004. Using data for all EU15 countries, they test whether the enlargement of the Union has reduced the variability and the persistence of RER shocks between Germany and the rest of the members during the 1990s. They also examine the impact of the introduction of the euro on the variance and persistence of real exchange rate shocks. Finally, the authors extend the analysis to the new members who joined in May, 2004. The results have implications for the economic cost of joining the Union, as well as assessing the timing of the newest members to enter the eurozone.