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Contracts, Fairness, and Incentives

  • Ernst Fehr
  • Alexander Klein
  • Klaus Schmidt

We show experimentally that fairness concerns may have a decisive impact on both the actual and the optimal choice of contracts in a moral hazard context. Explicit incentive contracts that are optimal according to self-interest theory become inferior when some agents value fairness. Conversely, implicit bonus contracts that are doomed to fail among purely selfish actors provide powerful incentives and become superior when there are some fair-minded players. The principals understand this and predominantly choose the bonus contracts, even preferring a pure bonus contract over a contract that combines the enforcement power of explicit and implicit incentives. This contract preference is associated with the fact that explicit incentives weaken the enforcement power of implicit bonus incentives significantly. Our results are largely consistent with recently developed theories of fairness, which also offer interesting new insights into the interaction of contract choices, fairness and incentives.

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Paper provided by CESifo Group Munich in its series CESifo Working Paper Series with number 1215.

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Date of creation: 2004
Date of revision:
Handle: RePEc:ces:ceswps:_1215
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  1. Nalbantian, Haig & Schotter, Andrew, 1994. "Productivity Under Group Incentives: An Experimental Study," Working Papers 94-04, C.V. Starr Center for Applied Economics, New York University.
  2. Matthew Rabin., 1992. "Incorporating Fairness into Game Theory and Economics," Economics Working Papers 92-199, University of California at Berkeley.
  3. Gary Charness & Matthew Rabin, 2003. "Understanding Social Preferences with Simple Tests," General Economics and Teaching 0303002, EconWPA.
  4. Bull, Clive & Schotter, Andrew & Weigelt, Keith, 1987. "Tournaments and Piece Rates: An Experimental Study," Journal of Political Economy, University of Chicago Press, vol. 95(1), pages 1-33, February.
  5. Vital Anderhub & Simon Gächter & Manfred Königstein, 2002. "Efficient Contracting and Fair Play in a Simple Principal-Agent Experiment," Experimental Economics, Springer, vol. 5(1), pages 5-27, June.
  6. Camerer, Colin & Weigelt, Keith, 1988. "Experimental Tests of a Sequential Equilibrium Reputation Model," Econometrica, Econometric Society, vol. 56(1), pages 1-36, January.
  7. 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.
  8. Werner Güth & Wolfgang Klose & Manfred Königstein & Joachim Schwalbach, 1998. "An experimental study of a dynamic principal-agent relationship," Managerial and Decision Economics, John Wiley & Sons, Ltd., vol. 19(4-5), pages 327-341.
  9. Chaudhuri, Ananish, 1998. "The ratchet principle in a principal agent game with unknown costs: an experimental analysis," Journal of Economic Behavior & Organization, Elsevier, vol. 37(3), pages 291-304, November.
  10. Ernst Fehr & Simon Gachter & Georg Kirchsteiger, 1997. "Reciprocity as a Contract Enforcement Device: Experimental Evidence," Econometrica, Econometric Society, vol. 65(4), pages 833-860, July.
  11. Bengt Holmstrom, 1981. "Moral Hazard in Teams," Discussion Papers 471, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  12. Werner Güth & Manfred Königstein & Judit Kovács & Enikõ Zala-Mezõ, 2001. "Fairness Within Firms: The Case Of One Principal And Multiple Agents," Schmalenbach Business Review (sbr), LMU Munich School of Management, vol. 53(2), pages 82-101, April.
  13. Keser, Claudia & Willinger, Marc, 2000. "Principals' principles when agents' actions are hidden," International Journal of Industrial Organization, Elsevier, vol. 18(1), pages 163-185, January.
  14. Canice Prendergast, 1999. "The Provision of Incentives in Firms," Journal of Economic Literature, American Economic Association, vol. 37(1), pages 7-63, March.
  15. Georg Kirchsteiger & Ernst Fehr & Arno Riedl, 1993. "Does Fairness Prevent Market Clearing? An Experimental Investigation," ULB Institutional Repository 2013/5927, ULB -- Universite Libre de Bruxelles.
  16. repec:oup:qjecon:v:117:y:2002:i:3:p:817-869 is not listed on IDEAS
  17. David K Levine, 1997. "Modeling Altruism and Spitefulness in Experiments," Levine's Working Paper Archive 2047, David K. Levine.
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