IDEAS home Printed from https://ideas.repec.org/p/bol/bodewp/665.html
   My bibliography  Save this paper

How groups reach agreement in risky choices: an experiment

Author

Listed:
  • M. Casari
  • J. Zhang

Abstract

This paper studies how groups resolve disagreement when they must reach unanimity after submitting individual proposals and exchanging text-form messages via a chat window in lottery choice experiments. We find that the majority proposal does not always prevail. The minority proposal prevails sometimes, especially when it is closer to risk neutrality. About one third of the groups disagrees after communication and would have got zero payoffs if disagreement remains after two more attempts without communication. In these groups, extrovert subjects are more likely to lead the group outcome than confused or conscientious subjects. Overall group choices are more coherent and closer to risk neutrality than individuals . Checking the recorded messages, we find that the chat activity is intense, growing with the level of disagreement and aims at finding consensus. The amount and timing of chat messages help us to predict which choice prevails in the group.

Suggested Citation

  • M. Casari & J. Zhang, 2009. "How groups reach agreement in risky choices: an experiment," Working Papers 665, Dipartimento Scienze Economiche, Universita' di Bologna.
    • Handle: RePEc:bol:bodewp:665
    as

    Download full text from publisher

    File URL: http://amsacta.unibo.it/4581/1/665.pdf
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. Ronald J. Baker II & Susan K. Laury & Arlington W. Williams, 2008. "Comparing Small-Group and Individual Behavior in Lottery-Choice Experiments," Southern Economic Journal, John Wiley & Sons, vol. 75(2), pages 367-382, October.
    2. 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.
    3. David J. Cooper & John H. Kagel, 2005. "Are Two Heads Better Than One? Team versus Individual Play in Signaling Games," American Economic Review, American Economic Association, vol. 95(3), pages 477-509, June.
    4. Masclet, David & Colombier, Nathalie & Denant-Boemont, Laurent & Lohéac, Youenn, 2009. "Group and individual risk preferences: A lottery-choice experiment with self-employed and salaried workers," Journal of Economic Behavior & Organization, Elsevier, vol. 70(3), pages 470-484, June.
    5. Urs Fischbacher, 2007. "z-Tree: Zurich toolbox for ready-made economic experiments," Experimental Economics, Springer;Economic Science Association, vol. 10(2), pages 171-178, June.
    6. Sutter, Matthias, 2005. "Are four heads better than two? An experimental beauty-contest game with teams of different size," Economics Letters, Elsevier, vol. 88(1), pages 41-46, July.
    7. Eliaz, Kfir & Ray, Debraj & Razin, Ronny, 2007. "Group decision-making in the shadow of disagreement," Journal of Economic Theory, Elsevier, vol. 132(1), pages 236-273, January.
    8. Gary Charness & Edi Karni & Dan Levin, 2007. "Individual and group decision making under risk: An experimental study of Bayesian updating and violations of first-order stochastic dominance," Journal of Risk and Uncertainty, Springer, vol. 35(2), pages 129-148, October.
    9. Martin G. Kocher & Matthias Sutter, 2005. "The Decision Maker Matters: Individual Versus Group Behaviour in Experimental Beauty-Contest Games," Economic Journal, Royal Economic Society, vol. 115(500), pages 200-223, January.
    10. Robert S. Shupp & Arlington W. Williams, 2008. "Risk preference differentials of small groups and individuals," Economic Journal, Royal Economic Society, vol. 118(525), pages 258-283, January.
    11. Wolfgang Luhan & Martin Kocher & Matthias Sutter, 2009. "Group polarization in the team dictator game reconsidered," Experimental Economics, Springer;Economic Science Association, vol. 12(1), pages 26-41, March.
    12. 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.
    13. James Cox & Stephen Hayne, 2006. "Barking up the right tree: Are small groups rational agents?," Experimental Economics, Springer;Economic Science Association, vol. 9(3), pages 209-222, September.
    14. Rockenbach, Bettina & Sadrieh, Abdolkarim & Mathauschek, Barbara, 2007. "Teams take the better risks," Journal of Economic Behavior & Organization, Elsevier, vol. 63(3), pages 412-422, July.
    15. 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.
    16. Ronald J. Baker & Susan K. Laury & Arlington W. Williams, 2008. "Comparing Small‐Group and Individual Behavior in Lottery‐Choice Experiments," Southern Economic Journal, John Wiley & Sons, vol. 75(2), pages 367-382, August.
    17. Laughlin, Patrick R. & Bonner, Bryan L. & Miner, Andrew G., 2002. "Groups perform better than the best individuals on Letters-to-Numbers problems," Organizational Behavior and Human Decision Processes, Elsevier, vol. 88(2), pages 605-620, July.
    18. Isaac, R Mark & Walker, James M, 1988. "Communication and Free-Riding Behavior: The Voluntary Contribution Mechanism," Economic Inquiry, Western Economic Association International, vol. 26(4), pages 585-608, October.
    19. Cason, Timothy N & Mui, Vai-Lam, 1997. "A Laboratory Study of Group Polarisation in the Team Dictator Game," Economic Journal, Royal Economic Society, vol. 107(444), pages 1465-1483, September.
    20. Hackett Steven & Schlager Edella & Walker James, 1994. "The Role of Communication in Resolving Commons Dilemmas: Experimental Evidence with Heterogeneous Appropriators," Journal of Environmental Economics and Management, Elsevier, vol. 27(2), pages 99-126, September.
    21. Gillet, Joris & Schram, Arthur & Sonnemans, Joep, 2009. "The tragedy of the commons revisited: The importance of group decision-making," Journal of Public Economics, Elsevier, vol. 93(5-6), pages 785-797, June.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Jingjing Zhang & Marco Casari, 2012. "How Groups Reach Agreement In Risky Choices: An Experiment," Economic Inquiry, Western Economic Association International, vol. 50(2), pages 502-515, 04.
    2. Kugler, Tamar & Kausel, E.E. & Kocher, Martin G., 2012. "Are groups more rational than individuals? A review of interactive decision making in groups," Munich Reprints in Economics 18215, University of Munich, Department of Economics.
    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. Yoshio Kamijo & Teruyuki Tamura, 2023. "Risk-Averse and Self-Interested Shifts in Groups in Both Median and Random Rules," Games, MDPI, vol. 14(1), pages 1-21, February.
    5. Fochmann, Martin & Fochmann, Nadja & Kocher, Martin G. & Müller, Nadja, 2021. "Dishonesty and risk-taking: Compliance decisions of individuals and groups," Journal of Economic Behavior & Organization, Elsevier, vol. 185(C), pages 250-286.
    6. Tibor Besedeš & Cary Deck & Sarah Quintanar & Sudipta Sarangi & Mikhail Shor, 2014. "Effort and Performance: What Distinguishes Interacting and Noninteracting Groups from Individuals?," Southern Economic Journal, John Wiley & Sons, vol. 81(2), pages 294-322, October.
    7. Maria Karmeliuk & Martin G. Kocher & Georg Schmidt, 2022. "Teams and individuals in standard auction formats: decisions and emotions," Experimental Economics, Springer;Economic Science Association, vol. 25(5), pages 1327-1348, November.
    8. He, Haoran & Villeval, Marie Claire, 2017. "Are group members less inequality averse than individual decision makers?," Journal of Economic Behavior & Organization, Elsevier, vol. 138(C), pages 111-124.
    9. Ambrus, Attila & Greiner, Ben & Pathak, Parag A., 2015. "How individual preferences are aggregated in groups: An experimental study," Journal of Public Economics, Elsevier, vol. 129(C), pages 1-13.
    10. Cary Deck & Jungmin Lee & Javier Reyes & Chris Rosen, 2012. "Risk‐Taking Behavior: An Experimental Analysis of Individuals and Dyads," Southern Economic Journal, John Wiley & Sons, vol. 79(2), pages 277-299, October.
    11. Stephen Cheung & Stefan Palan, 2012. "Two heads are less bubbly than one: team decision-making in an experimental asset market," Experimental Economics, Springer;Economic Science Association, vol. 15(3), pages 373-397, September.
    12. Yoshio Kamijo & Teruyuki Tamura, 2016. "Altruistic and risk preference of individuals and groups," Working Papers SDES-2016-12, Kochi University of Technology, School of Economics and Management, revised Oct 2016.
    13. Cavalcanti, Carina & Fleming, Christopher & Leibbrandt, Andreas, 2022. "Risk externalities and gender: Experimental evidence," Journal of Economic Behavior & Organization, Elsevier, vol. 196(C), pages 51-64.
    14. Rau, Holger A., 2015. "The disposition effect in team investment decisions: Experimental evidence," Journal of Banking & Finance, Elsevier, vol. 61(C), pages 272-282.
    15. Masclet, David & Colombier, Nathalie & Denant-Boemont, Laurent & Lohéac, Youenn, 2009. "Group and individual risk preferences: A lottery-choice experiment with self-employed and salaried workers," Journal of Economic Behavior & Organization, Elsevier, vol. 70(3), pages 470-484, June.
    16. Rau, Holger A., 2015. "The disposition effect in team investment decisions: Experimental evidence," University of Göttingen Working Papers in Economics 256, University of Goettingen, Department of Economics.
    17. A. Morone & P. Morone, 2014. "Estimating individual and group preference functionals using experimental data," Theory and Decision, Springer, vol. 77(3), pages 403-422, October.
    18. 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.
    19. Lohse, Tim & Simon, Sven A., 2021. "Compliance in teams – Implications of joint decisions and shared consequences," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 94(C).
    20. 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.

    More about this item

    JEL classification:

    • 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

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:bol:bodewp:665. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Dipartimento Scienze Economiche, Universita' di Bologna (email available below). General contact details of provider: https://edirc.repec.org/data/sebolit.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.