Resumen
This paper provides new empirical evidence of the ``euro effect" on bilateral trade by allowing for a heterogeneous impact on ``new" and ``old" EMU members. By applying a Poisson estimator and focusing on a sample of 38 countries, our results show a positive but statistically insignificant euro?s effect on bilateral exports. However, disaggregating this effect, we report a relatively large euro?s effect on bilateral trade for the ?new? EMU countries. We also find no evidence of trade diversion, thus corroborating existing evidence. These results are robust to a number of sensitivity checks and, especially, to the use of a larger sample of countries. Finally, using country-pair and country-industry-pair data, our results indicate a reduction in export concentration in the bilateral trade of ``old" EMU countries. Instead, we find an increase in concentration in trade between ``new" and ``old" EMU countries.