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Market Structure, Organizational Structure, and R&D Diversity
Joseph Farrell, Economics Department, University of California, Berkeley
Richard Gilbert, Economics Department, University of California, Berkeley
Michael Katz, Haas School of Business, Department of Economics, University of California, Berkeley
ABSTRACT: We examine the effects of market structure and the internal organization of firms on equilibrium R&D projects. We compare a monopolist’s choice of R&D portfolio to that of a welfare maximizer. We next show that Sah and Stiglitz’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 Stiglitz’s definition of hierarchy, we establish conditions under which larger hierarchies invest in smaller portfolios.
SUGGESTED CITATION: Joseph Farrell, Richard Gilbert, and Michael Katz,
"Market Structure, Organizational Structure, and R&D Diversity"
(September 9, 2002).
Competition Policy Center.
Paper CPC02-034.
http://repositories.cdlib.org/iber/cpc/CPC02-034
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