The paper proposes a model to investigate the influences of agglomeration on heterogeneous firms' exporting behaviors. In the model, firms are heterogeneous in productivity. Selection effect and agglomeration economies caused by agglomeration increase firms' productivity and decreases industrial...

In 2005 the French government launched a policy of competitiveness clusters, giving subsidies for innovative projects managed locally and collectively by firms, research centers and universities. This paper proposes an ex-ante analysis of the outcome of the selection process that took place...