Evolution of intra-regional trade in Southeast Europe : the role of CEFTA for enhancing regional trade integration. Introduction ; Trade patterns in the SEE region ; The role of trade regulations, trade-related business environment, and rules of origin in trade expansion and integration ; How are firms reacting to regional trade integration? ; Conclusions and recommendations -- Labor mobility in Southeast Europe. Introduction ; CEFTA : the setting ; Labor mobility provisions in free trade agreements ; The benefits (and costs) of labor mobility provisions ; Implementing mobility in CEFTA ; Conclusions -- The impact of establishing a virtual customs union between Southeast Europe and the European Union. Introduction ; Customs union versus a virtual customs union ; Tariff profile of Southeast Europe ; Estimates of trade diversion and trade creation due to adoption of EU's CET ; Summary and policy recommendations.