The power of diversity over large solution spaces
We consider a team of agents with limited problem-solving ability facing a disjunctive task over a large solution space. We provide sufficient conditions for the following four statements. First, two heads are better than one: a team of two agents will solve the problem even if neither agent alone would be able to. Second, teaming up does not guarantee success: if the agents are not sufficiently creative, even a team of arbitrary size may fail to solve the problem. Third, "defendit numerus": when the agent's problem-solving ability is adversely affected by the complexity of the solution space, the solution of the problem requires only a mild increase in the size of the team. Fourth, groupthink impairs the power of diversity: if agents' abilities are positively correlated, a larger team is necessary to solve the problem.
|Date of creation:||Mar 2011|
|Date of revision:||Sep 2011|
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- Roland Bénabou, 2009.
"Groupthink: Collective Delusions in Organizations and Markets,"
NBER Working Papers
14764, National Bureau of Economic Research, Inc.
- Bénabou, Roland, 2009. "Groupthink: Collective Delusions in Organizations and Markets," CEPR Discussion Papers 7193, C.E.P.R. Discussion Papers.
- Benabou, Roland, 2013. "Groupthink: Collective Delusions in Organizations and Markets," IZA Discussion Papers 7322, Institute for the Study of Labor (IZA).
- Blinder, Alan S & Morgan, John, 2005. "Are Two Heads Better than One? Monetary Policy by Committee," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 37(5), pages 789-811, October.
- 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.
- Martin G. Kocher & Matthias Sutter, 2005.
"The Decision Maker Matters: Individual Versus Group Behaviour in Experimental Beauty-Contest Games,"
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.
- 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.
- Kristina Dahlin & L. Weingart & P. Hinds, 2005. "Team diversity and information use," Post-Print hal-00480406, HAL.
- Gary Bornstein & Tamar Kugler & Anthony Ziegelmeyer, 2002. "Individual and Group Decisions in the Centipede Game: Are Groups More “Rational” Players?," Discussion Paper Series dp298, The Federmann Center for the Study of Rationality, the Hebrew University, Jerusalem.
- Alan S. Blinder & John Morgan, 2008. "Do Monetary Policy Committees Need Leaders? A Report on an Experiment," American Economic Review, American Economic Association, vol. 98(2), pages 224-29, May.
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