NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Scarcity of Ideas and R&D Options: Use it, Lose it or Bank it

Nisvan Erkal, Suzanne Scotchmer

NBER Working Paper No. 14940
Issued in May 2009

---- Acknowledgements -----

This paper expands and supersedes the first part of our 2007 paper "Scarcity of Ideas and Options to Invest in R&D." We especially thank Jennifer Reinganum for her comments at the Fifth Summer Workshop in Industrial Organization in Auckland. We also thank Michael Katz, Stephen Maurer, Robert Merges, Deborah Minehart, Paul Seabright, Brian Wright and participants of the 2008 Research Symposium on the Economics and Law of the Entrepreneur organized by the Searle Center on Law, Regulation, and Economic Growth for useful discussion. We thank the Toulouse Network on Information Technology, NSF Grants SES 0531184, 0830186, and Australian Research Council Grant DP0987070 for financial support. Nisvan Erkal thanks the University of California, Berkeley (ARE), for hosting her as a visiting scholar. Email: n.erkal@unimelb.edu.au, scotch@berkeley.edu. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.

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