The paper reviews recent evidence from a wide range of studies, recognizing that a multiplicity of approaches is needed to learn what works and what does not. The review concludes that there is some support for the emphasis on reducing trade costs through investments in hard infrastructure (like...

This paper is built on Venables (2011) theoretical predictions which show that gains from regional integration are unevenly distributed between resource rich and poor countries. We explore the effects of different integration schemes in Middle East and North Africa. Results suggest that within...