“…In the last fifteen years researchers have also been concerned with the use of gravity models in empirical studies looking at the process of economic integration and the role that RTAs have played in encouraging trade among members. There exists a large body of work examining the main changes in the geographical pattern of trade and analyzing the effects of regional trade arrangements (RTA) and free trade agreements (FTA) as well as currency unions on trade flows (see inter alia, Gros and Gonciarz 1996, Baldwin et al 1997, Brenton and Di Mauro 1999, Frankel and Rose 2000, Nilsson 2000, Laaser and Schrader 2002, Brenton and Manzocchi 2002, Damijan and Masten 2002, De Benedictis et al 2005, Bussiere et al 2008and Hornok 2010. The majority of these studies find that the RTAs created to prepare transition countries for EU accession, have generated considerable growth intra EU-CEECs trade flows, with the coefficients of regional dummies being positive and statistically significant.…”