Did Plant Patents Create the American Rose?

Petra Moser, Paul W. Rhode

NBER Working Paper No. 16983
Issued in April 2011

---- Acknowledgments ----

We thank Julian Alston, Jeff Furman, Eric Hilt, Josh Lerner, Philip Pardey, Scott Stern, and participants at the NBER Conference on the Rate and Direction of Technical Change for helpful comments. Ryan Lampe, Shirlee Lichtman, Kasiana McLenaghan, Jörg Ohmstedt, Fred Panier, and Tilky Xu provided outstanding research assistance. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.

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