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Same Process, Different Outcomes: Group Performance in an Acquiring a Company Experiment

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  • Casari, Marco

    (University of Bologna)

  • Zhang, Jingjing

    (University of Technology, Sydney)

  • Jackson, Christine

    (Purdue University)

Abstract

It is still an open question when groups perform better than individuals in intellective tasks. We report that in an Acquiring a Company game, what prevailed when there was disagreement among group members was the median proposal and not the best proposal. This aggregation rule explains why groups underperformed with respect to a "truth wins" benchmark and why they performed better than individuals deciding in isolation in a simple version of the task but worse in the more difficult version. Implications are drawn on when to employ groups rather than individuals in decision making.

Suggested Citation

  • Casari, Marco & Zhang, Jingjing & Jackson, Christine, 2015. "Same Process, Different Outcomes: Group Performance in an Acquiring a Company Experiment," IZA Discussion Papers 9614, Institute of Labor Economics (IZA).
  • Handle: RePEc:iza:izadps:dp9614
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    Cited by:

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    2. Andrea Morone & Simone Nuzzo & Rocco Caferra, 2019. "The Dollar Auction Game: A Laboratory Comparison Between Individuals and Groups," Group Decision and Negotiation, Springer, vol. 28(1), pages 79-98, February.
    3. Penczynski, Stefan P., 2016. "Persuasion: An experimental study of team decision making," Journal of Economic Psychology, Elsevier, vol. 56(C), pages 244-261.
    4. 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.
    5. Gary Charness & David J. Cooper & Zachary Grossman, 2020. "Silence is golden: team problem solving and communication costs," Experimental Economics, Springer;Economic Science Association, vol. 23(3), pages 668-693, September.
    6. Ayala Arad & Kevin P. Grubiak & Stefan P. Penczynski, 2024. "Does communicating within a team influence individuals’ reasoning and decisions?," Experimental Economics, Springer;Economic Science Association, vol. 27(1), pages 109-129, March.
    7. Brocas, Isabelle & Carrillo, Juan D., 2022. "Adverse selection and contingent reasoning in preadolescents and teenagers," Games and Economic Behavior, Elsevier, vol. 133(C), pages 331-351.

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    More about this item

    Keywords

    winner's curse; group decision making; communication; risky shift; herd behavior;
    All these keywords.

    JEL classification:

    • C91 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Individual Behavior
    • C92 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Group Behavior
    • D03 - Microeconomics - - General - - - Behavioral Microeconomics: Underlying Principles
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty

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