This paper addresses the lack of connection between theory and empirics in most export diversification - economic development studies. We provide a Ricardian-based theoretical explanation of countries' relative export variety as a function of the level of technology and country size assessed...

We document for the US and Continental Europe that home-production time remained essentially flat during the last 50 years while changes in market time and leisure offset each other. We then focus on the US and France during 1970-2005 which are on the opposite sides of the spectrum: while US...

Theories of international trade have severe difficulties in explaining why, despite i) substantial differences in factor-proportions across industries and ii) considerable cross-country differences in capital-labor ratios, the iii) the evidence for factor-proportions trade is rather weak. We...