How groups reach agreement in risky choices: an experiment
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.
|Date of creation:||Apr 2009|
|Date of revision:|
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- 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.
- 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.
- Charness, Gary B & Karni, Edi, 2007. "Individual and Group Decision Making Under Risk: An Experimental Study of Bayesian Updating and Violations of First-order Stochastic Dominance," University of California at Santa Barbara, Economics Working Paper Series qt4gr7j8z8, Department of Economics, UC Santa Barbara.
- Ronald J. Baker II & Susan K. Laury & Arlington W. Williams, 2008.
"Comparing Small-Group and Individual Behavior in Lottery-Choice Experiments,"
Caepr Working Papers
2007-018_Updated, Center for Applied Economics and Policy Research, Economics Department, Indiana University Bloomington.
- 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.
- Ronald J. Baker II & Susan K. Laury & Arlington W. Williams, 2007. "Comparing Small-Group and Individual Behavior in Lottery-Choice Experiments," Caepr Working Papers 2007-018, Center for Applied Economics and Policy Research, Economics Department, Indiana University Bloomington.
- Bettina Kuon & Abdolkarim Sadrieh & Barbara Mathauschek, 1999.
"Teams Take the Better Risks,"
Discussion Paper Serie B
452, University of Bonn, Germany.
- Matthias Sutter, 2004.
"Are four heads better than two? An experimental beauty-contest game with teams of different size,"
Papers on Strategic Interaction
2004-15, Max Planck Institute of Economics, Strategic Interaction Group.
- 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.
- Martin G. Kocher & Matthias Sutter, 2004.
"The Decision Maker Matters: Individual versus Group Behaviour in Experimental Beauty-Contest Games,"
Papers on Strategic Interaction
2004-09, Max Planck Institute of Economics, Strategic Interaction Group.
- 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, 01.
- Kocher, Martin G. & Sutter, Matthias, 2005. "The decision maker matters: Individual versus group behaviour in experimental beauty-contest games," Munich Reprints in Economics 18213, University of Munich, Department of Economics.
- RobertS. Shupp & ArlingtonW. Williams, 2008.
"Risk preference differentials of small groups and individuals,"
Royal Economic Society, vol. 118(525), pages 258-283, 01.
- 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.
- Urs Fischbacher, 2007. "z-Tree: Zurich toolbox for ready-made economic experiments," Experimental Economics, Springer, vol. 10(2), pages 171-178, June.
- 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.
- 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.
- 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 1465-83, September.
- James C. Cox & Stephen C. Hayne, .
"Barking Up the Right Tree: Are Small Groups Rational Agents?,"
Experimental Economics Center Working Paper Series
2006-02, Experimental Economics Center, Andrew Young School of Policy Studies, Georgia State University.
- James Cox & Stephen Hayne, 2006. "Barking up the right tree: Are small groups rational agents?," Experimental Economics, Springer, vol. 9(3), pages 209-222, September.
- 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.
- 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.
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