1. Patents as a Measure of Innovative Activity
2. R. Amir , 1995 , "R&D Returns, Endogenous Firm Heterogeneity and Research Joint Ventures," D.P. 95-31, WZB, Berlin.
3. R. Amir, and J. Wooders , 1997 , "One-Way Spillovers, Endogenous Innovator/Imitator Roles and Research Joint Ventures," D.P. 97-2, University of Arizona, Games and Economic Behavior, to appear.
4. R. Amir, and J. Wooders , 1997 , "Effects of One-Way Spillovers on Market Shares, Industry Price, Welfare, and R&D Cooperation," D.P. 97-1, University of Arizona.
5. Cooperation vs. competition in R&D: The role of stability of equilibrium