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How Do Informal Agreements and Renegotiation Shape Contractual Reference Points?

  • Fehr, Ernst


    (University of Zurich)

  • Hart, Oliver


    (Harvard University)

  • Zehnder, Christian


    (University of Lausanne)

Previous experimental work provides encouraging support for some of the central assumptions underlying Hart and Moore (2008)’s theory of contractual reference points. However, existing studies ignore realistic aspects of trading relationships such as informal agreements and ex post renegotiation. We investigate the relevance of these features experimentally. Our evidence indicates that the central behavioral mechanism underlying the concept of contractual reference points is robust to the presence of informal agreements and ex post renegotiation. However, our data also reveal new behavioral features that suggest refinements of the theory. In particular, we find that the availability of informal agreements and ex post renegotiation changes how trading parties evaluate ex post outcomes. Interestingly, the availability of these additional options affects ex post evaluations even in situations in which the parties do not use them.

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Paper provided by Institute for the Study of Labor (IZA) in its series IZA Discussion Papers with number 6095.

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Length: 56 pages
Date of creation: Oct 2011
Date of revision:
Handle: RePEc:iza:izadps:dp6095
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References listed on IDEAS
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  1. Simon Gachter & Ernst Fehr, 2000. "Cooperation and Punishment in Public Goods Experiments," American Economic Review, American Economic Association, vol. 90(4), pages 980-994, September.
  2. 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.
  3. repec:tpr:qjecon:v:117:y:2002:i:3:p:817-869 is not listed on IDEAS
  4. Ernst Fehr & Lorenz Goette & Christian Zehnder, 2008. "A behavioral account of the labor market: the role of fairness concerns," IEW - Working Papers 394, Institute for Empirical Research in Economics - University of Zurich.
  5. Greiner, Ben, 2004. "An Online Recruitment System for Economic Experiments," MPRA Paper 13513, University Library of Munich, Germany.
  6. Ernst Fehr & Oliver Hart & Christian Zehnder, 2009. "Contracts, Reference Points, and Competition-Behavioral Effects of The Fundamental Transformation," Journal of the European Economic Association, MIT Press, vol. 7(2-3), pages 561-572, 04-05.
  7. Hoppe, Eva I. & Schmitz, Patrick W., 2011. "Can contracts solve the hold-up problem? Experimental evidence," Games and Economic Behavior, Elsevier, vol. 73(1), pages 186-199, September.
  8. Urs Fischbacher, 2007. "z-Tree: Zurich toolbox for ready-made economic experiments," Experimental Economics, Springer, vol. 10(2), pages 171-178, June.
  9. Fehr, Ernst & Hart, Oliver & Zehnder, Christian, 2008. "Contracts as Reference Points: Experimental Evidence," IZA Discussion Papers 3889, Institute for the Study of Labor (IZA).
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