An Exploration of Local R&D Spillovers in France
---- Acknowledgements ----
We have benefited from useful comments by participants to the ADRES conference on Network of Innovation and Spatial Analysis of Knowledge Diffusion (Saint Etienne, CREUSET, September 2006) and to various seminars where preliminary versions of this work have been presented. We are particularly grateful to Corinne Autant-Bernard and Nadine Massard for their patient encouragement. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.