Price convergence after the Eastern enlargement of the EU: evidence from retail food prices
利用欧盟15国及8个中东欧新成员国的零售食品价格微观数据，研究了2004年欧盟东扩后的价格趋同现象，发现欧盟23国间存在显著的价格趋同，主要源于新旧成员国之间的趋同。
Using detailed micro data on European retail food prices for EU15 and all eight Central and Eastern European accession countries, we analyse price convergence within the European Union after the enlargement shock in 2004. Testing for σ-convergence, we find a strong price convergence within EU23, which is mainly explained by convergence between and not within the two subgroups of the old and the new member states.