We extend the trade model with firm heterogeneity developed by Melitz and Ottaviano (2008), incorporating domestic and imported intermediate goods, in order to investigate the impact of import barriers on final and intermediate goods on firms’ decisions to produce and to export. Our main contribution is to disentangle the channels through which these trade policies work. When variable trade cos...

The paper examines the interactions between economic integration and population agglomeration in a middle product economy displaying neoclassical growth. There are two vertically integrated economies. Each consists of a large number of final good competitive firms operating plants in both regions, and a large number of intermediate goods monopolistically competitive firms operating each in only...

This paper analyzes the relationship between industrialization and technology in detail. Three main conclusions are obtained: (i) the crucial factor for the existence of a poverty trap is the degree of substitutability among intermediate inputs; (ii) the e1ects of technological progress in the manufactured good sector and the intermediate goods sector on industrialization di1er with the degree ...