The impact of the 2004 EU enlargement on the performance of service enterprises in Germany's eastern border region

We consider the impact of the 2004 EU enlargement on enterprise performance and the exporting behavior of German service enterprises in Germany’s eastern border region. Our results from regression adjusted difference-in-differences estimators combined with matching and panel data from official statistics suggest that the EU enlargement had a negative impact on the turnover and export intensity of large enterprises in the border region. For small enterprises, we find an annual increase in turnover by 2.3% in 2004 and an annual decrease in profitability by 1.5 and 1.9 percentage points in 2004 and 2005, respectively.