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Functional Differentiation

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  • Sällström, Susanna

Abstract

Models of product differentiation typically assume a demand for variety. This paper derives the demand for variety in a model where a representative consumer chooses how many specialised varieties to purchase for the pursuit of different activities. In contrast with previous models this generates a demand for variety that is price and income elastic. In applications to monopoly and duopoly I find that whilst a duopoly will choose efficient characteristics it will offer too many specialised varieties, whereas a monopoly will either offer excessively specialised varieties or too few specialised varieties on the assumption of no fixed costs of variety.

Suggested Citation

  • Sällström, Susanna, 2009. "Functional Differentiation," CEPR Discussion Papers 7187, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:7187
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    References listed on IDEAS

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    1. Michael Spence, 1976. "Product Selection, Fixed Costs, and Monopolistic Competition," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 43(2), pages 217-235.
    2. Reuben Gronau & Daniel S. Hamermesh, 2008. "The Demand for Variety: A Household Production Perspective," The Review of Economics and Statistics, MIT Press, vol. 90(3), pages 562-572, August.
    3. Perloff, Jeffrey M & Salop, Steven, 1984. "Equilibrium with product differentiation," Department of Agricultural & Resource Economics, UC Berkeley, Working Paper Series qt4cq0m6s3, Department of Agricultural & Resource Economics, UC Berkeley.
    4. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth through Creative Destruction," Econometrica, Econometric Society, vol. 60(2), pages 323-351, March.
    5. Justin P. Johnson & David P. Myatt, 2003. "Multiproduct Quality Competition: Fighting Brands and Product Line Pruning," American Economic Review, American Economic Association, vol. 93(3), pages 748-774, June.
    6. Thomas von Ungern-Sternberg, 1988. "Monopolistic Competition and General Purpose Products," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 55(2), pages 231-246.
    7. Ingela Alger, 1999. "Consumer Strategies Limiting the Monopolist's Power: Multiple and Joint Purchases," RAND Journal of Economics, The RAND Corporation, vol. 30(4), pages 736-757, Winter.
    8. White, Lawrence J, 1977. "Market Structure and Product Varieties," American Economic Review, American Economic Association, vol. 67(2), pages 179-182, March.
    9. Jeffrey M. Perloff & Steven C. Salop, 1985. "Equilibrium with Product Differentiation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 52(1), pages 107-120.
    10. Donnenfeld, Shabtai & White, Lawrence J, 1990. "Quality Distortion by a Discriminating Monopolist: Comment," American Economic Review, American Economic Association, vol. 80(4), pages 941-945, September.
    11. Dixit, Avinash K & Stiglitz, Joseph E, 1977. "Monopolistic Competition and Optimum Product Diversity," American Economic Review, American Economic Association, vol. 67(3), pages 297-308, June.
    12. Whinston, Michael D, 1990. "Tying, Foreclosure, and Exclusion," American Economic Review, American Economic Association, vol. 80(4), pages 837-859, September.
    13. Steven C. Salop, 1979. "Monopolistic Competition with Outside Goods," Bell Journal of Economics, The RAND Corporation, vol. 10(1), pages 141-156, Spring.
    14. Carbajo, Jose & de Meza, David & Seidmann, Daniel J, 1990. "A Strategic Motivation for Commodity Bundling," Journal of Industrial Economics, Wiley Blackwell, vol. 38(3), pages 283-298, March.
    15. Simon P. Anderson & André De Palma & Jacques-François Thisse, 1989. "Demand for Differentiated Products, Discrete Choice Models, and the Characteristics Approach," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 56(1), pages 21-35.
    16. Caves, Richard E, 1984. "Economic Analysis and the Quest for Competitive Advantage," American Economic Review, American Economic Association, vol. 74(2), pages 127-132, May.
    17. Sherwin Rosen, 2002. "Markets and Diversity," American Economic Review, American Economic Association, vol. 92(1), pages 1-15, March.
    18. Raymond Deneckere & Michael Rothschild, 1992. "Monopolistic Competition and Preference Diversity," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 59(2), pages 361-373.
    19. d'Aspremont, C & Gabszewicz, Jean Jaskold & Thisse, J-F, 1979. "On Hotelling's "Stability in Competition"," Econometrica, Econometric Society, vol. 47(5), pages 1145-1150, September.
    20. repec:bla:jindec:v:47:y:1999:i:4:p:427-49 is not listed on IDEAS
    21. Martin Pesendorfer, 2005. "Mergers Under Entry," RAND Journal of Economics, The RAND Corporation, vol. 36(3), pages 661-679, Autumn.
    22. Gordon, Robert J & Griliches, Zvi, 1997. "Quality Change and New Products," American Economic Review, American Economic Association, vol. 87(2), pages 84-88, May.
    23. Edward H. Chamberlin, 1953. "The Product as an Economic Variable," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 67(1), pages 1-29.
    24. R. Preston McAfee & John McMillan & Michael D. Whinston, 1989. "Multiproduct Monopoly, Commodity Bundling, and Correlation of Values," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 104(2), pages 371-383.
    25. Yongmin Chen & Michael H. Riordan, 2007. "Price and Variety in the Spokes Model," Economic Journal, Royal Economic Society, vol. 117(522), pages 897-921, July.
    26. Fudenberg, Drew & Gilbert, Richard & Stiglitz, Joseph & Tirole, Jean, 1983. "Preemption, leapfrogging and competition in patent races," European Economic Review, Elsevier, vol. 22(1), pages 3-31, June.
    27. Oz Shy, 1996. "Industrial Organization: Theory and Applications," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262691795, April.
    28. A. Michael Spence, 1975. "Monopoly, Quality, and Regulation," Bell Journal of Economics, The RAND Corporation, vol. 6(2), pages 417-429, Autumn.
    29. William James Adams & Janet L. Yellen, 1976. "Commodity Bundling and the Burden of Monopoly," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 90(3), pages 475-498.
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    More about this item

    Keywords

    General purpose goods; Product differentiation; Specialised goods; Variety;
    All these keywords.

    JEL classification:

    • D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution
    • D42 - Microeconomics - - Market Structure, Pricing, and Design - - - Monopoly
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms

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