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Nonstandard foundations of equilibrium search models

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  • Rauh, Michael T.

Abstract

We develop an equilibrium sequential search model which includes most of the literature as special cases. In particular, the model can accommodate heterogeneity in buyers’ search costs and demand functions and firms’ cost functions, with general demand and cost functions. We identify conditions which ensure existence of equilibrium in pure strategies, utilizing recent progress in the theory of large games by Khan and Sun. These conditions elucidate the essential structure of equilibrium search models. Although we focus on sequential search, our methodology can be used for other classes of equilibrium search models as well.

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Bibliographic Info

Article provided by Elsevier in its journal Journal of Economic Theory.

Volume (Year): 132 (2007)
Issue (Month): 1 (January)
Pages: 518-529

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Handle: RePEc:eee:jetheo:v:132:y:2007:i:1:p:518-529

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Web page: http://www.elsevier.com/locate/inca/622869

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References

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  1. Rauh, Michael T., 1997. "A Model of Temporary Search Market Equilibrium," Journal of Economic Theory, Elsevier, vol. 77(1), pages 128-153, November.
  2. Rath, Kali P. & Yeneng Sun & Shinji Yamashige, 1995. "The nonexistence of symmetric equilibria in anonymous games with compact action spaces," Journal of Mathematical Economics, Elsevier, vol. 24(4), pages 331-346.
  3. Khan, M. Ali & Rath, Kali P. & Sun, Yeneng, 1997. "On the Existence of Pure Strategy Equilibria in Games with a Continuum of Players," Journal of Economic Theory, Elsevier, vol. 76(1), pages 13-46, September.
  4. Spulber,Daniel F., 2009. "The Theory of the Firm," Cambridge Books, Cambridge University Press, number 9780521517386.
  5. Carlson, John A & McAfee, R Preston, 1983. "Discrete Equilibrium Price Dispersion," Journal of Political Economy, University of Chicago Press, vol. 91(3), pages 480-93, June.
  6. Khan, M. Ali & Sun, Yeneng, 1999. "Non-cooperative games on hyperfinite Loeb spaces1," Journal of Mathematical Economics, Elsevier, vol. 31(4), pages 455-492, May.
  7. Rob, Rafael, 1985. "Equilibrium Price Distributions," Review of Economic Studies, Wiley Blackwell, vol. 52(3), pages 487-504, July.
  8. Robert, Jacques & Stahl, Dale O, II, 1993. "Informative Price Advertising in a Sequential Search Model," Econometrica, Econometric Society, vol. 61(3), pages 657-86, May.
  9. KHAN , M. Ali & SUN, Yeneng, 1997. "On Loeb measures spaces and their significance for non-cooperative game theory," CORE Discussion Papers 1997012, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  10. Reinganum, Jennifer F, 1979. "A Simple Model of Equilibrium Price Dispersion," Journal of Political Economy, University of Chicago Press, vol. 87(4), pages 851-58, August.
  11. Rauh, Michael T., 2004. "Wage and price controls in the equilibrium sequential search model," European Economic Review, Elsevier, vol. 48(6), pages 1287-1300, December.
  12. Benabou Roland, 1993. "Search Market Equilibrium, Bilateral Heterogeneity, and Repeat Purchases," Journal of Economic Theory, Elsevier, vol. 60(1), pages 140-158, June.
  13. Michael T. Rauh, 2003. "Non-cooperative games with a continuum of players whose payoffs depend on summary statistics," Economic Theory, Springer, vol. 21(4), pages 901-906, 06.
  14. Daniel F. Spulber, 1996. "Market Microstructure and Intermediation," Journal of Economic Perspectives, American Economic Association, vol. 10(3), pages 135-152, Summer.
  15. Michael Rauh, . "Heterogeneous Beliefs, Price Dispersion, and Welfare-Improving Price Controls," Economics and Finance Discussion Papers 97-03, Economics and Finance Section, School of Social Sciences, Brunel University.
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Cited by:
  1. Haan, Marco A. & Moraga-Gonzalez, Jose L., 2009. "Advertising for attention in a consumer search model," IESE Research Papers D/794, IESE Business School.
  2. Onsel Emre & Ali Hortacsu & Chad Syverson, 2005. "E-commerce and the Market Structure of Retail Industries," Working Papers 05-24, NET Institute, revised Oct 2005.
  3. Mustafa Caglayan & Alpay Filiztekin & Michael T. Rauh, 2006. "Inflation, Price Dispersion, and Market Structure," Working Papers 2006-03, Indiana University, Kelley School of Business, Department of Business Economics and Public Policy.
  4. Michael T. Rauh, 2006. "Strategic Complementarities and Search Market Equilibrium," Working Papers 2006-01, Indiana University, Kelley School of Business, Department of Business Economics and Public Policy.
  5. Michael Rauh, 2005. "Complementarity, Search, and Price Dispersion," Game Theory and Information 0508008, EconWPA.

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