State-Dependent Intellectual Property Rights Policy
---- Acknowledgements -----
We thank conference and seminar participants at the Canadian Institute of Advanced Research, European Science Days, MIT, National Bureau of Economic Research, Toulouse Information Technology Network, and Philippe Aghion and particularly Suzanne Scotchmer for useful comments. Financial support from the Toulouse Information Technology Network is gratefully acknowledged. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.