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Group and individual risk preferences : a lottery-choice experiment

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This paper focuses on decision making under risk, comparing group and individual risk preferences in a lottery-choice experiment inspired by Holt and Laury (2002). The experiment presents subjects with a menu of unordered lottery choices which allows us to measure risk aversion. In the individual treatment, subjects make lottery choices individually ; in the group treatment, each subject was placed in an anonymous group of three, where unanimous lottery choice decisions were made via voting. Finally, in a third treatment, called the choice treatment, subjects could choose whether to be on their own or in a group. our main findings are that groups are more likely than individuals to choose safe lotteries for decisions with low winning percentages. Moreover, groups converge toward less risky decisions because subjects who were relatively less risk averse were more likely to change their vote in order to conform to the group average decision ; more risk-averse individuals were less likely to change their preferences. Finally our results reveal a positive relationship between preference for risk and willingness to decide alone.

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  • 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.
  • Handle: RePEc:mse:wpsorb:bla06063
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    Cited by:

    1. Morone, A. & Morone, P. & Germani, A.R., 2014. "Individual and group behaviour in the traveler's dilemma: An experimental study," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 49(C), pages 1-7.
    2. Besedes, Tibor & Deck, Cary & Quintanar, Sarah & Sarangi, Sudipta & Shor, Mikhael, 2011. "Free-Riding and Performance in Collaborative and Non-Collaborative Groups," MPRA Paper 33948, University Library of Munich, Germany.
    3. Roman Sheremeta & Jingjing Zhang, 2010. "Can groups solve the problem of over-bidding in contests?," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 35(2), pages 175-197, July.
    4. Klaus Abbink & Jordi Brandts & Benedikt Herrmann & Henrik Orzen, 2010. "Intergroup Conflict and Intra-group Punishment in an Experimental Contest Game," American Economic Review, American Economic Association, vol. 100(1), pages 420-447, March.
    5. Loheac, Youenn & Combris, Pierre & Issancou, Sylvie, 2010. "Food Decision, Information And Personality," 115th Joint EAAE/AAEA Seminar, September 15-17, 2010, Freising-Weihenstephan, Germany 116434, European Association of Agricultural Economists.
    6. Iván Arribas & Penélope Hernández & Amparo Urbano Salvador & Jose E. Vila, 2012. "Are social and entrepreneurial attitudes compatible? A behavioral and self-perceptional analysis," Discussion Papers in Economic Behaviour 0512, University of Valencia, ERI-CES.
    7. Philomena M. Bacon & Peter G. Moffatt, 2012. "Mortgage Choice as a Natural Field Experiment on Choice under Risk," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 44(7), pages 1401-1426, October.
    8. Ronald J. Baker II & Susan K. Laury & Arlington W. Williams, 2008. "Comparing Small-Group and Individual Behavior in Lottery-Choice Experiments," Southern Economic Journal, Southern Economic Association, vol. 75(2), pages 367-382, October.
    9. Daniela Di Cagno & Emanuela Sciubba & Marco Spallone, 2012. "Choosing a gambling partner: testing a model of mutual insurance in the lab," Theory and Decision, Springer, vol. 72(4), pages 537-571, April.

    More about this item

    Keywords

    Experiment; decision rule; individual decision; group decision.;

    JEL classification:

    • C91 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Individual Behavior
    • C92 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Group Behavior
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • D70 - Microeconomics - - Analysis of Collective Decision-Making - - - General
    • M10 - Business Administration and Business Economics; Marketing; Accounting; Personnel Economics - - Business Administration - - - General

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