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Comparing Small-Group and Individual Behavior in Lottery-Choice Experiments

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Author Info

  • Ronald J. Baker II

    ()
    (Millersville University of Pennsylvania)

  • Susan K. Laury

    ()
    (Georgia State University)

  • Arlington W. Williams

    ()
    (Indiana University Bloomington)

Abstract

Lottery-choice experiments are conducted to compare risk preferences revealed by three-person groups versus isolated individuals. A lottery-choice experiment consists of a menu of paired lottery choices structured so that the crossover point from a low-risk to a high-risk lottery can be used to infer the degree of risk aversion. A between-subjects experiment of group versus individual lottery-choice decisions reveal that there is not a significant difference in the average crossover point, but lottery choices are affected by a significant interaction between subject composition (individual or group) and lottery winning percentage. Also, a three-phased individual-group-individual sequenced experiment reveals that the count of safe lotteries chosen by groups is, on average, significantly greater than the mean of the individual members. Finally, making a phase-two group decision has a significant impact on subsequent phase-three individual decisions relative to the initial phase-one (individual) decisions.

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File URL: http://www.iub.edu/~caepr/RePEc/PDF/2007/CAEPR2007-018.pdf
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Bibliographic Info

Paper provided by Center for Applied Economics and Policy Research, Economics Department, Indiana University Bloomington in its series Caepr Working Papers with number 2007-018.

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Length: 30 pages
Date of creation: Sep 2007
Date of revision:
Handle: RePEc:inu:caeprp:2007018

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Keywords: lab experiments; risk preferences; group decisions;

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  1. repec:hal:cesptp:halshs-00118973 is not listed on IDEAS
  2. David Masclet & Youenn Loheac & Laurent Denant-Boemont & Nathalie Colombier, 2004. "Group and individual risk preferences : a lottery-choice experiment," Cahiers de la Maison des Sciences Economiques bla06063, Université Panthéon-Sorbonne (Paris 1), revised Sep 2006.
  3. Charles A. Holt & Susan K. Laury, 2005. "Risk Aversion and Incentive Effects: New Data without Order Effects," American Economic Review, American Economic Association, vol. 95(3), pages 902-912, June.
  4. repec:hal:journl:halshs-00118973 is not listed on IDEAS
  5. Robert S. Shupp & Arlington Williams, 2003. "Risk Preference Differentials of Small Groups and Individuals," Working Papers 200301, Ball State University, Department of Economics, revised Apr 2006.
  6. Glenn W. Harrison & Eric Johnson & Melayne M. McInnes & E. Elisabet Rutstr�m, 2005. "Risk Aversion and Incentive Effects: Comment," American Economic Review, American Economic Association, vol. 95(3), pages 897-901, June.
  7. Charles A. Holt & Susan K. Laury, 2002. "Risk Aversion and Incentive Effects," American Economic Review, American Economic Association, vol. 92(5), pages 1644-1655, December.
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