Do social preferences matter in competitive markets?
Experimental evidence stresses the importance of so-called social preferences for understanding economic behavior. Social preferences are defined over the entire allocation in a given economic environment, and not just over one's own consumption as is traditionally presumed. We study the implications for competitive market outcomes if agents have such preferences. First, we clarify under what conditions an agent behaves as if she was selfish - i.e. when her demand function is independent of others' behavior. An agent behaves as if selfish if and only if her preferences can be represented by a utility function that is separable between her own utility and the allocation of goods for all other agents. Next, we study equilibrium outcomes in economies where individual agents behave as if selfish. We how that one can identify a corresponding ego-economy such that the equilibria of the ego-economy coincide with the equilibria of the original economy. As a consequence, competitive equilibria exist and they are material efficient. In general, however, the First Welfare Theorem fails. We introduce the class of Bergsonian social utility functions, which are social utility functions that are completely separable in all agents' material utility. For such social preferences, the Second Welfare Theorem holds under a suitable growth condition. We also establish that in uncertain environments, agents with social preferences typically do not behave as if selfish. Furthermore, in the presence of public goods, both demand and equilibrium outcomes depend on social preferences.
|Date of creation:||15 Aug 2011|
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- Falk, Armin & Fischbacher, Urs, 2001.
"A Theory of Reciprocity,"
CEPR Discussion Papers
3014, C.E.P.R. Discussion Papers.
- Collard, David, 1975. "Edgeworth's Propositions on Altruism," Economic Journal, Royal Economic Society, vol. 85(338), pages 355-60, June.
- Rabin, Matthew, 1993.
"Incorporating Fairness into Game Theory and Economics,"
American Economic Review,
American Economic Association, vol. 83(5), pages 1281-1302, December.
- M. Rabin, 2001. "Incorporating Fairness into Game Theory and Economics," Levine's Working Paper Archive 511, David K. Levine.
- Matthew Rabin., 1992. "Incorporating Fairness into Game Theory and Economics," Economics Working Papers 92-199, University of California at Berkeley.
- Georg Kirchsteiger & Martin Dufwenberg, 2004.
"A theory of sequential reciprocity,"
ULB Institutional Repository
2013/5899, ULB -- Universite Libre de Bruxelles.
- Margin Dufwenberg & Georg Kirchsteiger, 2001. "A Theory of Sequential Reciprocity," Levine's Working Paper Archive 563824000000000090, David K. Levine.
- Dufwenberg, M. & Kirchsteiger, G., 1998. "A Theory of Sequential Reciprocity," Discussion Paper 1998-37, Tilburg University, Center for Economic Research.
- Hochman, Harold M & Rodgers, James D, 1969. "Pareto Optimal Redistribution," American Economic Review, American Economic Association, vol. 59(4), pages 542-57, Part I Se.
- Gary Charness & Matthew Rabin, 2003.
"Understanding Social Preferences with Simple Tests,"
General Economics and Teaching
- Gary Charness & Matthew Rabin, 2002. "Understanding Social Preferences with Simple Tests," The Quarterly Journal of Economics, Oxford University Press, vol. 117(3), pages 817-869.
- Charness, Gary & Rabin, Matthew, 2002. "Understanding Social Preferences with Simple Tests," Department of Economics, Working Paper Series qt3d04q5sm, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
- Charness, Gary B & Rabin, Matthew, 2001. "Understanding Social Preferences With Simple Tests," University of California at Santa Barbara, Economics Working Paper Series qt0dc3k4m5, Department of Economics, UC Santa Barbara.
- Charness, Gary & Rabin, Matthew, 2001. "Understanding Social Preferences with Simple Tests," Department of Economics, Working Paper Series qt4qz9k8vg, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
- David K. Levine, 1998.
"Modeling Altruism and Spitefulness in Experiment,"
Review of Economic Dynamics,
Elsevier for the Society for Economic Dynamics, vol. 1(3), pages 593-622, July.
- Borglin, Anders, 1973. "Price characterization of stable allocations in exchange economies with externalities," Journal of Economic Theory, Elsevier, vol. 6(5), pages 483-494, October.
- Rader, Trout, 1980. "The second theorem of welfare economics when utilities are interdependent," Journal of Economic Theory, Elsevier, vol. 23(3), pages 420-424, December.
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