The European Neighborhood Policy (ENP), launched in 2004, is a unified EU policy framework towards the EU neighboring countries (ENP countries). The objective of the ENP is to strengthen the prosperity, stability and security of the (enlarged) EU and the ENP countries, creating a "ring of...

Based on the estimation of a theoretically consistent gravity equation, together with a careful computation of transportation costs across countries and industries, the Paper first provides estimates of ‘border effects’ among EU countries. The second objective is to examine the reasons for...