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Preference heterogeneity in experiments: Comparing the field and lab

Author

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  • Steffen Andersen
  • Glenn Harrison
  • Morten Lau
  • Elisabet Rutstrom

Abstract

Economists recognize that preferences can differ across individuals. We examine the strengths and weaknesses of lab and field experiments to detect differences in preferences that are associated with standard, observable characteristics of the individual. We consider preferences over risk and time, two fundamental concepts of economics. Our results provide striking evidence that there are good reasons to conduct field experiments. The lab fails to detect preference heterogeneity that is present in the field, obviously due to the demographic homogeneity of the lab. There are also differences in treatment effects measured in the lab and the field that can be traced to interactions between treatment and demographic effects. These can only be detected and controlled for properly in the field data. Thus one cannot simply claim, without additional empirical argument or assumption, that treatment effects estimated in the lab are reliable.

Suggested Citation

  • Steffen Andersen & Glenn Harrison & Morten Lau & Elisabet Rutstrom, 2004. "Preference heterogeneity in experiments: Comparing the field and lab," Artefactual Field Experiments 00004, The Field Experiments Website.
    • Handle: RePEc:feb:artefa:00004
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    Cited by:

    1. Gary Charness & Marie-Claire Villeval, 2009. "Cooperation and Competition in Intergenerational Experiments in the Field and the Laboratory," American Economic Review, American Economic Association, vol. 99(3), pages 956-978, June.
    2. Alma Cohen & Liran Einav, 2007. "Estimating Risk Preferences from Deductible Choice," American Economic Review, American Economic Association, vol. 97(3), pages 745-788, June.
    3. von Gaudecker, H.M. & van Soest, A.H.O. & Wengstrom, E., 2008. "Selection and Mode Effects in Risk Preference Elicitation Experiments," Discussion Paper 2008-11, Tilburg University, Center for Economic Research.
    4. Steven D. Levitt & John A. List, 2007. "Viewpoint: On the generalizability of lab behaviour to the field," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 40(2), pages 347-370, May.
    5. Robert Faff & Daniel Mulino & Daniel Chai, 2008. "On The Linkage Between Financial Risk Tolerance And Risk Aversion," Journal of Financial Research, Southern Finance Association;Southwestern Finance Association, vol. 31(1), pages 1-23, March.

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