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Process and product innovation by a multiproduct monopolist: A dynamic approach

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  • Lambertini, Luca
  • Mantovani, Andrea

Abstract

We adopt a dynamic approach to model the behaviour of a multiproduct monopolist investing in process innovation, and either product differentiation, or product proliferation, or both. Irrespective of the number of activities appearing in the R&D portfolio, we prove that, depending on initial conditions, there may exists substitutability between process innovation and either form of product innovation along the optimal path towards the steady state, while in the latter only complementarity emerges. Looking at the threefold investment plan, we qualitatively characterise the ranking of R&D activities in terms of the consumer reservation price and the extent of the spectrum of varieties.

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Bibliographic Info

Article provided by Elsevier in its journal International Journal of Industrial Organization.

Volume (Year): 27 (2009)
Issue (Month): 4 (July)
Pages: 508-518

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Handle: RePEc:eee:indorg:v:27:y:2009:i:4:p:508-518

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Web page: http://www.elsevier.com/locate/inca/505551

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Keywords: Product innovation Process innovation Complementarity;

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References

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  1. Curtat, Laurent O., 1996. "Markov Equilibria of Stochastic Games with Complementarities," Games and Economic Behavior, Elsevier, vol. 17(2), pages 177-199, December.
  2. Spence, Michael, 1976. "Product Differentiation and Welfare," American Economic Review, American Economic Association, vol. 66(2), pages 407-14, May.
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  4. Sudipto Bhattacharya and Dilip Mookherhee., 1984. "Portfolio Choice in Research and Development," Research Program in Finance Working Papers 147, University of California at Berkeley.
  5. Lin, Ping & Saggi, Kamal, 2002. "Product differentiation, process R&D, and the nature of market competition," European Economic Review, Elsevier, vol. 46(1), pages 201-211, January.
  6. Amir, Rabah, 1996. "Continuous Stochastic Games of Capital Accumulation with Convex Transitions," Games and Economic Behavior, Elsevier, vol. 15(2), pages 111-131, August.
  7. Doraszelski, Ulrich, 2004. "Innovations, improvements, and the optimal adoption of new technologies," Journal of Economic Dynamics and Control, Elsevier, vol. 28(7), pages 1461-1480, April.
  8. Andrea Mantovani, 2006. "Complementarity between product and process innovation in a monopoly setting," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 15(3), pages 219-234.
  9. Bonanno, Giacomo & Haworth, Barry, 1998. "Intensity of competition and the choice between product and process innovation," International Journal of Industrial Organization, Elsevier, vol. 16(4), pages 495-510, July.
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  11. Vives, X., 1988. "Nash Equilibrium With Strategic Complementarities," UFAE and IAE Working Papers 107-88, Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC).
  12. L. Lambertini & S. Poddar & D. Sasaki, 1997. "Standardization and the Stability of Collusion," Working Papers 298, Dipartimento Scienze Economiche, Universita' di Bologna.
  13. Harrington Jr. , Joseph E., 1995. "Experimentation and Learning in a Differentiated-Products Duopoly," Journal of Economic Theory, Elsevier, vol. 66(1), pages 275-288, June.
  14. Cellini, Roberto & Lambertini, Luca, 2002. "A differential game approach to investment in product differentiation," Journal of Economic Dynamics and Control, Elsevier, vol. 27(1), pages 51-62, November.
  15. Lambertini, Luca & Rossini, Gianpaolo, 1998. "Product homogeneity as a prisoner's dilemma in a duopoly with R&D," Economics Letters, Elsevier, vol. 58(3), pages 297-301, March.
  16. 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.
  17. Nirvikar Singh & Xavier Vives, 1984. "Price and Quantity Competition in a Differentiated Duopoly," RAND Journal of Economics, The RAND Corporation, vol. 15(4), pages 546-554, Winter.
  18. Lambertini, Luca & Orsini, Raimondello, 2000. "Process and product innovation in a vertically differentiated monopoly," Economics Letters, Elsevier, vol. 68(3), pages 333-337, September.
  19. Klepper, Steven, 1996. "Entry, Exit, Growth, and Innovation over the Product Life Cycle," American Economic Review, American Economic Association, vol. 86(3), pages 562-83, June.
  20. Milgrom, Paul & Roberts, John, 1990. "Rationalizability, Learning, and Equilibrium in Games with Strategic Complementarities," Econometrica, Econometric Society, vol. 58(6), pages 1255-77, November.
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  22. Rosenkranz, Stephanie, 2003. "Simultaneous choice of process and product innovation when consumers have a preference for product variety," Journal of Economic Behavior & Organization, Elsevier, vol. 50(2), pages 183-201, February.
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Citations

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Cited by:
  1. Hinloopen, J. & Smrkolj, G. & Wagener, F.O.O., 2013. "In Defense of Trusts: R&D Cooperation in Global Perspective," CeNDEF Working Papers 13-05, Universiteit van Amsterdam, Center for Nonlinear Dynamics in Economics and Finance.
  2. Hinloopen, Jeroen & Smrkolj, Grega & Wagener, Florian, 2013. "From mind to market: A global, dynamic analysis of R&D," Journal of Economic Dynamics and Control, Elsevier, vol. 37(12), pages 2729-2754.
  3. repec:dgr:uvatin:2013045 is not listed on IDEAS
  4. Chenavaz, Régis, 2012. "Dynamic pricing, product and process innovation," European Journal of Operational Research, Elsevier, vol. 222(3), pages 553-557.
  5. Saha, Souresh, 2014. "Firm's objective function and product and process R&D," Economic Modelling, Elsevier, vol. 36(C), pages 484-494.
  6. L. Lambertini & R. Orsini, 2014. "Process Innovation and Product Quality Improvement in a Dynamic Monopoly," Working Papers wp926, Dipartimento Scienze Economiche, Universita' di Bologna.
  7. Régis Chenavaz, 2011. "Dynamic pricing rule and R&D," Economics Bulletin, AccessEcon, vol. 31(3), pages 2229-2236.
  8. repec:dgr:uvatin:2011139 is not listed on IDEAS
  9. Irlacher, Michael, 2014. "Multi-Product Firms, Endogenous Sunk Costs, and Gains from Trade through Intra-Firm Adjustments," Discussion Papers in Economics 21023, University of Munich, Department of Economics.

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