Martin, Philippe; Mayer, Thierry; Mayneris, Florian - In: Journal of Urban Economics 69 (2011) 2, pp. 182-195
This paper analyzes empirically the effect of spatial agglomeration of activities on plant-level productivity, using French firm and plant-level data from 1996 to 2004. We exploit short-run variations of variables by making use of GMM estimation. This allows us to control for endogeneity biases...