Market Structure, Organizational Structure, and R&D Diversity
We examine the effects of market structure and the internal organization of firms on equilibrium R&D projects. We compare a monopolistâ€™s choice of R&D portfolio to that of a welfare maximizer. We next show that Sah and Stiglitzâ€™s finding that the market portfolio of R&D is independent of the number of firms under Bertrand competition extends to neither Cournot oligopoly nor a cartel. We also show that the ability of firms to pre-empt R&D by rivals along particular research paths can lead to socially excessive R&D diversification. Lastly, using Sah and Stiglitzâ€™s definition of hierarchy, we establish conditions under which larger hierarchies invest in smaller portfolios.
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- Anton, James J & Yao, Dennis A, 1994. "Expropriation and Inventions: Appropriable Rents in the Absence of Property Rights," American Economic Review, American Economic Association, vol. 84(1), pages 190-209, March.
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- Rothschild, Michael & Stiglitz, Joseph E., 1970. "Increasing risk: I. A definition," Journal of Economic Theory, Elsevier, vol. 2(3), pages 225-243, September.
- Michael L. Katz, 1980. "Multiplant Monopoly in a Spatial Market," Bell Journal of Economics, The RAND Corporation, vol. 11(2), pages 519-535, Autumn.
- Reinganum, Jennifer F., 1989. "The timing of innovation: Research, development, and diffusion," Handbook of Industrial Organization, in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 1, chapter 14, pages 849-908 Elsevier.
- Gilbert, Richard J & Newbery, David M G, 1982. "Preemptive Patenting and the Persistence of Monopoly," American Economic Review, American Economic Association, vol. 72(3), pages 514-526, June.
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