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The Monopolist's Optimal R&D Portfolio

Listed author(s):
  • L. Lambertini

The monopolist’s incentives towards product and process innovations are evaluated against the social optimum. The main findings are that (i) the incentive to invest in cost-reducing R&D is inversely related to the number of varieties being supplied at equilibrium, under both regimes; (ii) distortions obtain under monopoly, w.r.t. both the number of varieties and the technology. With substitutes (respectively, complements), the monopolist’s product range is smaller (respectively, larger) than under social planning. For any given number of goods, the monopolist operates at a higher marginal cost than the planner does.

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Paper provided by Dipartimento Scienze Economiche, Universita' di Bologna in its series Working Papers with number 391.

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Date of creation: 2000
Handle: RePEc:bol:bodewp:391
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  1. Champsaur, Paul & Rochet, Jean-Charles, 1989. "Multiproduct Duopolists," Econometrica, Econometric Society, vol. 57(3), pages 533-557, May.
  2. L. Lambertini & R. Orsini, 2000. "Process and Product Innovation in a Vertically Differentiated Monopoly," Working Papers 367, Dipartimento Scienze Economiche, Universita' di Bologna.
  3. De Fraja, Giovanni, 1994. "A General Characterization of Multiproduct Cournot Competition," Bulletin of Economic Research, Wiley Blackwell, vol. 46(2), pages 171-183, April.
  4. Mussa, Michael & Rosen, Sherwin, 1978. "Monopoly and product quality," Journal of Economic Theory, Elsevier, vol. 18(2), pages 301-317, August.
  5. Panzar, John C., 1989. "Technological determinants of firm and industry structure," Handbook of Industrial Organization, in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 1, chapter 1, pages 3-59 Elsevier.
  6. GABSZEWICZ, Jean J. & SHAKED, Avner & SUTTON, John & THISSE, Jacques-François, "undated". "Segmenting the market: the monopolist's optimal product mix," CORE Discussion Papers RP 707, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  7. Sudipto Bhattacharya and Dilip Mookherhee., 1984. "Portfolio Choice in Research and Development," Research Program in Finance Working Papers 147, University of California at Berkeley.
  8. Simon P. Anderston & Andre de Palma, 1991. "Multiproduct Firms: A Nested Logit Approach," Discussion Papers 973, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  9. Brander, James A & Eaton, Jonathan, 1984. "Product Line Rivalry," American Economic Review, American Economic Association, vol. 74(3), pages 323-334, June.
  10. Wernerfelt, Birger, 1986. "Product Line Rivalry: Note," American Economic Review, American Economic Association, vol. 76(4), pages 842-844, September.
  11. Rosenkranz, Stephanie, 1996. "Simultaneous Choice of Process and Product Innovation," CEPR Discussion Papers 1321, C.E.P.R. Discussion Papers.
  12. Eric Maskin & John Riley, 1984. "Monopoly with Incomplete Information," RAND Journal of Economics, The RAND Corporation, vol. 15(2), pages 171-196, Summer.
  13. Avinash Dixit, 1979. "A Model of Duopoly Suggesting a Theory of Entry Barriers," Bell Journal of Economics, The RAND Corporation, vol. 10(1), pages 20-32, Spring.
  14. Klemperer, Paul, 1992. "Equilibrium Product Lines: Competing Head-to-Head May Be Less Competitive," American Economic Review, American Economic Association, vol. 82(4), pages 740-755, September.
  15. Klemperer, P., 1992. "Competition when Consumers Have Switching Costs: An Overview," Economics Series Working Papers 99142, University of Oxford, Department of Economics.
  16. MacDonald, Glenn M & Slivinski, Alan, 1987. "The Simple Analytics of Competitive Equilibrium with Multiproduct Firms," American Economic Review, American Economic Association, vol. 77(5), pages 941-953, December.
  17. Giacomo Bonanno, 1987. "Location Choice, Product Proliferation and Entry Deterrence," Review of Economic Studies, Oxford University Press, vol. 54(1), pages 37-45.
  18. Paul Klemperer & A. Jorge Padilla, 1997. "Do Firms' Product Lines Include Too Many Varieties?," RAND Journal of Economics, The RAND Corporation, vol. 28(3), pages 472-488, Autumn.
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