This thesis emphasizes the role of firm heterogeneity in financial factors and their impact on exporting decisions or off-shoring decisions, and apply it to thr

The thesis is organized as follows. Chapter 2 contains a survey of the three most in‡fluential models on fi…rm heterogeneity and of the most important empir

A firm's productivity is composed of two parts: pure technical change and location-specific (agglomeration) externalities. Regional productivity is thus an aggr