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Has The World Changed? My Neighbor Might Know Effects of Social Context on Routine Deviation

Listed author(s):
  • Tilman Betsch


    (University of Erfurt, Department of Psychology)

  • Stefanie Lindow

    (University of Erfurt, Department of Psychology)

  • Christoph Engel

    (Max Planck Institute for Research on Collective Goods)

  • Corinna Ulshöfer

    (University of Bern, Switzerland)

  • Janet Kleber

    (Max Planck Institute for Research on Collective Goods)

In two experiments we studied the effects of behavioral models on routine deviation decisions in observers. Participants repeatedly chose among four card-deck lotteries together with a human model (confederate, Exp. 1) or a non-human model (computer, Exp. 2) that made correct decisions in the majority of the trials. In a learning phase, participants acquired a choice routine (preferring one deck over others). In a subsequent test phase, participants had to adapt to changes in the payoff structure that required them to deviate from their routine. We found a strong tendency to maintain the routine despite negative feedback (routine effect). In a social situation (Exp.1), models decrease routine effects more intensely than in non social situations (Exp.2). The process of adaptation follows a belief updating process. Results indicate that the model effect is not due to an increase of the sample of relevant information nor to application of a simply copy heuristic. Rather, deviation models may provide a cue for change that fosters reevaluation of the situation in the observer.

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Paper provided by Max Planck Institute for Research on Collective Goods in its series Discussion Paper Series of the Max Planck Institute for Research on Collective Goods with number 2011_21.

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Date of creation: Aug 2011
Handle: RePEc:mpg:wpaper:2011_21
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  1. Cameron,A. Colin & Trivedi,Pravin K., 2005. "Microeconometrics," Cambridge Books, Cambridge University Press, number 9780521848053, September.
  2. Kok Teo & T. Cheng & Xiaoqiang Cai & Xiaoqi Yang, 2005. "Preface," Annals of Operations Research, Springer, vol. 133(1), pages 17-20, January.
  3. Samuelson, William & Zeckhauser, Richard, 1988. "Status Quo Bias in Decision Making," Journal of Risk and Uncertainty, Springer, vol. 1(1), pages 7-59, March.
  4. Eldad Yechiam & Meir Druyan & Eyal Ert, 2008. "Observing others' behavior and risk taking in decisions from experience," Judgment and Decision Making, Society for Judgment and Decision Making, vol. 3(7), pages 493-500, October.
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