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Quality Improvement and Process Innovation in Monopoly: A Dynamic Analysis

Listed author(s):
  • Luca Lambertini

    ()

    (Department of Economics, University of Bologna, Italy; The Rimini Centre for Economic Analysis, Italy)

  • Raimondello Orsini

    ()

    (Department of Economics, University of Bologna, Italy)

We investigate the R&D portfolio of a monopolist investing in cost-reducing and quality enhancing R&D. Incentives along the two directions are inversely related to the size of market demand, and independent of each other. The stability analysis shows the existence of a unique stable steady state equilibrium, which is a saddle point. Finally, we show that the monopolist undersupplies product quality as compared to the social optimum, while its investment in the abatement of marginal cost is socially efficient.

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File URL: http://www.rcfea.org/RePEc/pdf/wp15-12.pdf
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Paper provided by The Rimini Centre for Economic Analysis in its series Working Paper Series with number 15-12.

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Date of creation: Mar 2015
Handle: RePEc:rim:rimwps:15-12
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  1. Luca Lambertini & Andrea Mantovani, 2010. "Process and product innovation: A differential game approach to product life cycle," International Journal of Economic Theory, The International Society for Economic Theory, vol. 6(2), pages 227-252.
  2. Ping Lin, 2004. "Process and product R&D by a multiproduct monopolist," Oxford Economic Papers, Oxford University Press, vol. 56(4), pages 735-743, October.
  3. Lambertini, Luca & Mantovani, Andrea, 2009. "Process and product innovation by a multiproduct monopolist: A dynamic approach," International Journal of Industrial Organization, Elsevier, vol. 27(4), pages 508-518, July.
  4. Sudipto Bhattacharya & Dilip Mookherjee, 1986. "Portfolio Choice in Research and Development," RAND Journal of Economics, The RAND Corporation, vol. 17(4), pages 594-605, Winter.
  5. Engelbert Dockner & Gustav Feichtinger, 1991. "On the optimality of limit cycles in dynamic economic systems," Journal of Economics, Springer, vol. 53(1), pages 31-50, February.
  6. Champsaur, Paul & Rochet, Jean-Charles, 1989. "Multiproduct Duopolists," Econometrica, Econometric Society, vol. 57(3), pages 533-557, May.
  7. Jaskold Gabszewicz, J. & Thisse, J. -F., 1979. "Price competition, quality and income disparities," Journal of Economic Theory, Elsevier, vol. 20(3), pages 340-359, June.
  8. Dasgupta, Partha & Maskin, Eric, 1987. "The Simple Economics of Research Portfolios," Economic Journal, Royal Economic Society, vol. 97(387), pages 581-595, September.
  9. L. Lambertini, 1995. "The Multiproduct Monopolist Under Vertical Differentiation: an Inductive Approach," Working Papers 226, Dipartimento Scienze Economiche, Universita' di Bologna.
  10. Eric Maskin & John Riley, 1984. "Monopoly with Incomplete Information," RAND Journal of Economics, The RAND Corporation, vol. 15(2), pages 171-196, Summer.
  11. Lambertini, Luca & Orsini, Raimondello, 2000. "Process and product innovation in a vertically differentiated monopoly," Economics Letters, Elsevier, vol. 68(3), pages 333-337, September.
  12. Luca Lambertini, 2003. "The monopolist's optimal R&D portfolio," Oxford Economic Papers, Oxford University Press, vol. 55(4), pages 561-578, October.
  13. Yehuda Kotowitz & Frank Mathewson, 1979. "Advertising, Consumer Information, and Product Quality," Bell Journal of Economics, The RAND Corporation, vol. 10(2), pages 566-588, Autumn.
  14. Gustav Feichtinger & Richard F. Hartl & Suresh P. Sethi, 1994. "Dynamic Optimal Control Models in Advertising: Recent Developments," Management Science, INFORMS, vol. 40(2), pages 195-226, February.
  15. Luca Lambertini, 2004. "Process and product R&D by a multiproduct monopolist: a reply to Lin," Oxford Economic Papers, Oxford University Press, vol. 56(4), pages 745-749, October.
  16. Avner Shaked & John Sutton, 1982. "Relaxing Price Competition Through Product Differentiation," Review of Economic Studies, Oxford University Press, vol. 49(1), pages 3-13.
  17. Mussa, Michael & Rosen, Sherwin, 1978. "Monopoly and product quality," Journal of Economic Theory, Elsevier, vol. 18(2), pages 301-317, August.
  18. A. Michael Spence, 1975. "Monopoly, Quality, and Regulation," Bell Journal of Economics, The RAND Corporation, vol. 6(2), pages 417-429, Autumn.
  19. El Ouardighi, Fouad & Kim, Bowon, 2010. "Supply quality management with wholesale price and revenue-sharing contracts under horizontal competition," European Journal of Operational Research, Elsevier, vol. 206(2), pages 329-340, October.
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