This paper develops an intra-industry model of trade with heterogeneous firms to investigate the impact of trade on the evolution of within firm productivity. The main contribution is to incorporate endogenous labor productivity gains. Heterogeneous firms have different incentives to invest in...

The primary purpose of this paper is to seek empirical answers to the above question. Using a highly disaggregated bilateral trade flows at HS 6 digit level for African countries for a period 1995-2009 and a conditional logit technique, I find 3 main empirical results. First, intra-Africa...

The primary purpose of this paper is to seek empirical answers to the above question. Using a highly disaggregated bilateral trade flows at HS 6 digit level for African countries for a period 1995-2009 and a conditional logit technique, I find 3 main empirical results. First, intra-Africa...

We study the optimal combination of corporate tax rate and tax base in a model of a small open economy with heterogeneous firms. We show that it is optimal for the small country's government to effectively subsidize capital inputs by granting a tax allowance in excess of the true costs of...

We present an international trade model with multiproduct firms. Firms are heterogeneously endowed with two types of capabilities that jointly determine the trade-off within firms between managing a large portfolio of products and producing at low marginal cost. The model can explain many of the...

This paper calls into question the currently most influential model of international trade. An empirical finding by Trefler (2004, AER) and others that industrial productivity increases more strongly in liberalized industries than in non-liberalized industries has been widely accepted as...