The Dynamics of the Transfer and Renewal of Patents
NBER Working Paper No. 13938
---- Acknowledgements -----
I am very grateful to Thomas Holmes and Sam Kortum for their advice and patience. I would also like to thank Victor Aguirregabiria, Tom Astebro, Ian Cockburn, Nicolas Figueroa, Suqin Ge, Hugo Hopenhayn, Ig Horstmann, Chris Laincz, Matt Mitchell, Jennifer O'Reilly, Andy Skrzypacz, Rosemarie Ziedonis, and especially the editor and two referees for their very helpful comments and suggestions which significantly improved the paper. I acknowledge financial support from the Bank of Spain Graduate Fellowship, the Federal Reserve Bank of Minneapolis and the Connaught Start-Up award of the University of Toronto. Comments welcome to: firstname.lastname@example.org. First draft: April, 2004. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.