In this paper we argue that strong political economy forces explain the rush of the EU to expand eastwards. We use a model of vertical product differentiation in order to claim that technologically- advanced EU firms (residing in high-income member countries) prefer a mutual market-opening with...

Jacob Viner's The Customs Union Issue was originally published in 1950 by the Carnegie Endowment for International Peace. It set the framework for the contemporary debate over the benefits or otherwise of preferential trading agreements such as the European Union, NAFTA, and APEC. Viner...