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Reciprocity, inequity-aversion, and oligopolistic competition

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  • Santos-Pinto, Luís

Abstract

This paper extends the Cournot and Bertrand models of strategic interaction between firms by assuming that managers are not only profit maximizers, but also have preferences for reciprocity or are averse to inequity. A reciprocal manager responds to unkind behavior of rivals with unkind actions, while at the same time, it responds to kind behavior of rivals with kind actions. An inequity averse manager likes to reduce the difference between own profits and the rivals’ profits. The paper finds that if firms with reciprocal managers compete à la Cournot, then they may be able to sustain “collusive” outcomes under a constructive reciprocity equilibrium. By contrast, Stackelberg warfare may emerge under a destructive reciprocity equilibrium. If there is Cournot competition between firms and their managers are averse to advantageous (disadvantageous) inequity, then firms are better (worse) off than if managers only care about maximizing profits. If firms compete à la Bertrand, then only under very restrictive conditions will managers’ preferences for reciprocity or inequity aversion have an impact on equilibrium outcomes.

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Bibliographic Info

Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 3143.

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Date of creation: 17 May 2006
Date of revision: 14 Apr 2007
Handle: RePEc:pra:mprapa:3143

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Keywords: Reciprocity; Inequity Aversion; Cournot; Bertrand;

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References

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  1. Steffen Huck & Hans-Theo Normann & Jörg Oechssler, 2001. "Two are Few and Four are Many: Number Effects in Experimental Oligopolies," Bonn Econ Discussion Papers bgse12_2001, University of Bonn, Germany.
  2. Santos-Pinto, Luís, 2006. "Making Sense of the Experimental Evidence on Endogenous Timing in Duopoly Markets," MPRA Paper 3142, University Library of Munich, Germany, revised 27 Apr 2007.
  3. Xavier Vives, 2001. "Oligopoly Pricing: Old Ideas and New Tools," MIT Press Books, The MIT Press, edition 1, volume 1, number 026272040x, December.
  4. Englmaier, Florian & Wambach, Achim, 2005. "Optimal Incentive Contracts under Inequity Aversion," IZA Discussion Papers 1643, Institute for the Study of Labor (IZA).
  5. Fehr, Ernst & Schmidt, Klaus M., 1998. "A Theory of Fairness, Competition and Cooperation," CEPR Discussion Papers 1812, C.E.P.R. Discussion Papers.
  6. Axel Ockenfels & Gary E. Bolton, 2000. "ERC: A Theory of Equity, Reciprocity, and Competition," American Economic Review, American Economic Association, vol. 90(1), pages 166-193, March.
  7. V. Prasnikar & A. Roth, 1998. "Considerations of fairness and strategy: experimental data from sequential games," Levine's Working Paper Archive 451, David K. Levine.
  8. Dastidar, Krishnendu Ghosh, 1995. "On the Existence of Pure Strategy Bertrand Equilibrium," Economic Theory, Springer, vol. 5(1), pages 19-32, January.
  9. Matthew Rabin., 1992. "Incorporating Fairness into Game Theory and Economics," Economics Working Papers 92-199, University of California at Berkeley.
  10. Segal, Uzi & Sobel, Joel, 1999. "Tit for Tat: Foundations of Preferences for Reciprocity in Strategic Settings," University of California at San Diego, Economics Working Paper Series qt9xf8836g, Department of Economics, UC San Diego.
  11. Dominique Demougin & Claude Fluet, 2003. "Inequity Aversion in Tournaments," Cahiers de recherche 0322, CIRPEE.
  12. Nabil Al-Najjar & Sandeep Baliga & David Besanko, 2008. "Market forces meet behavioral biases: cost misallocation and irrational pricing," RAND Journal of Economics, RAND Corporation, vol. 39(1), pages 214-237.
  13. William Neilson, 2006. "Axiomatic reference-dependence in behavior toward others and toward risk," Economic Theory, Springer, vol. 28(3), pages 681-692, 08.
  14. Pinto, Luis Santos, 2007. "Collusion and Reciprocity in Infinitely Repeated Games," FEUNL Working Paper Series wp512, Universidade Nova de Lisboa, Faculdade de Economia.
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Cited by:
  1. Santos-Pinto, Luís, 2008. "Making sense of the experimental evidence on endogenous timing in duopoly markets," Journal of Economic Behavior & Organization, Elsevier, vol. 68(3-4), pages 657-666, December.
  2. Doruk İriş & Luís Santos-Pinto, 2013. "Tacit Collusion under Fairness and Reciprocity," Games, MDPI, Open Access Journal, vol. 4(1), pages 50-65, February.

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