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Coordination Economies

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  • Kyle Bagwell
  • Garey Ramey

Abstract

We introduce a model of the retail firm in which consumers and active firms benefit collectively from coordination of sales at fewer firms. Using this model, we show that ostensibly uninformative advertising plays a key role in bringing about coordination economies, by directing consumer search toward firms taht offer the best deals. Optimal consumer scarch takes the form of a simple rule of thumb that uses observed advertising information to guide search. Both industry concentration and social surplus are higher in the presence of advertising, relative to a no-advertising benchmark.

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Bibliographic Info

Paper provided by Northwestern University, Center for Mathematical Studies in Economics and Management Science in its series Discussion Papers with number 1034.

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Date of creation: Jan 1992
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Handle: RePEc:nwu:cmsems:1034

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Web page: http://www.kellogg.northwestern.edu/research/math/
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References

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  1. Burdett, Kenneth & Judd, Kenneth L, 1983. "Equilibrium Price Dispersion," Econometrica, Econometric Society, vol. 51(4), pages 955-69, July.
  2. Kyle Bagwell & Garey Ramey, 1990. "Advertising and Coordination," Discussion Papers 903, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  3. Milgrom, Paul & Roberts, John, 1986. "Price and Advertising Signals of Product Quality," Journal of Political Economy, University of Chicago Press, vol. 94(4), pages 796-821, August.
  4. David Kreps & Robert Wilson, 1998. "Sequential Equilibria," Levine's Working Paper Archive 237, David K. Levine.
  5. Milgrom, Paul & Shannon, Chris, 1994. "Monotone Comparative Statics," Econometrica, Econometric Society, vol. 62(1), pages 157-80, January.
  6. Cady, John F, 1976. "An Estimate of the Price Effects of Restrictions on Drug Price Advertising," Economic Inquiry, Western Economic Association International, vol. 14(4), pages 493-510, December.
  7. Diamond, Peter A., 1971. "A model of price adjustment," Journal of Economic Theory, Elsevier, vol. 3(2), pages 156-168, June.
  8. Benham, Lee, 1972. "The Effect of Advertising on the Price of Eyeglasses," Journal of Law and Economics, University of Chicago Press, vol. 15(2), pages 337-52, October.
  9. Kihlstrom, Richard E & Riordan, Michael H, 1984. "Advertising as a Signal," Journal of Political Economy, University of Chicago Press, vol. 92(3), pages 427-50, June.
  10. Stahl, Dale O, II, 1989. "Oligopolistic Pricing with Sequential Consumer Search," American Economic Review, American Economic Association, vol. 79(4), pages 700-712, September.
  11. Butters, Gerard R, 1977. "Equilibrium Distributions of Sales and Advertising Prices," Review of Economic Studies, Wiley Blackwell, vol. 44(3), pages 465-91, October.
  12. Rosenthal, Robert W, 1980. "A Model in Which an Increase in the Number of Sellers Leads to a Higher Price," Econometrica, Econometric Society, vol. 48(6), pages 1575-79, September.
  13. repec:fth:stanho:e-92-1 is not listed on IDEAS
  14. Walter Y. Oi, 1992. "Productivity in the Distributive Trades: The Shopper and the Economies of Massed Reserves," NBER Chapters, in: Output Measurement in the Service Sectors, pages 161-193 National Bureau of Economic Research, Inc.
  15. Bagwell, Kyle & Ramey, Garey, 1994. "Coordination Economies, Advertising, and Search Behavior in Retail Markets," American Economic Review, American Economic Association, vol. 84(3), pages 498-517, June.
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Cited by:
  1. Jeffrey R. Campbell & Hugo A. Hopenhayn, 2002. "Market Size Matters," NBER Working Papers 9113, National Bureau of Economic Research, Inc.
  2. Kyle Bagwell, 1991. "Competitive Limit Pricing Under Imperfect Information," Discussion Papers 954, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  3. AMIR, Rabah, 2003. "Supermodularity and complementarity in economics: an elementary survey," CORE Discussion Papers 2003104, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).

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