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Social Influence and Position Effects

Author

Listed:
  • Marisa Hidalgo-Hidalgo

    (Universidad Pablo de Olavide)

  • Natalia Jiménez

    (Universidad Pablo de Olavide & Middlesex University)

  • Dunia López-Pintado

    (Universidad Pablo de Olavide)

Abstract

Online search companies use a default ranking to present alternatives to consumers. The salience of an alternative can be described by its position in the presentation order and its popularity, derived from the opinion of others. We perform a lab experiment to study social influence and position effects in a stylized and controlled environment where alternatives have an objective value, common to all participants. Nevertheless, due to time constraints, finding the optimal choice is complex. We consider three different settings: (i) social influence is not present, (ii) social influence and the presentation order go in the same direction and, (iii) social influence is not aligned with the presentation order. We find that, although position effects are stronger than social influence (or popularity) effects for the searching behavior, social influence effects are more relevant for predicting the actual choice. We also find strong evidence of nonlinearity regarding both social influence and position effects. From an individual perspective, we obtain that those subjects who recognize their own errors or come from less wealthy families have a higher sensibility to social influence when it is reinforced by position, whereas overconfident and reflexive individuals are more influenceable when position and social influence are confronted. Interestingly, we do not find any gender effects.

Suggested Citation

  • Marisa Hidalgo-Hidalgo & Natalia Jiménez & Dunia López-Pintado, 2019. "Social Influence and Position Effects," Working Papers 19.03, Universidad Pablo de Olavide, Department of Economics.
    • Handle: RePEc:pab:wpaper:19.03
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    More about this item

    Keywords

    social influence; ranking; online searching; lab experiments.;
    All these keywords.

    JEL classification:

    • C91 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Individual 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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