Discussion Paper Details

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Title: Herding With and Without Payoff Externalities - An Internet Experiment

Author(s): Mathias Drehmann, Jrg Oechssler and Andreas Roider

Publication Date: October 2005

Keyword(s): experiment, herding, information cascades, internet and network effects

Programme Area(s): Industrial Organization

Abstract: Most real world situations that are susceptible to herding are also characterized by direct payoff externalities. Yet, the bulk of the theoretical and experimental literature on herding has focused on pure informational externalities. In this paper we experimentally investigate the effects of several different forms of payoff externalities (e.g., network effects, first-mover advantage, etc.) in a standard information-based herding model. Our results are based on an internet experiment with more than 6000 subjects, including a subsample of 267 consultants from an international consulting firm. We also replicate and review earlier cascade experiments. Finally, we study reputation effects (i.e., the influence of success models) in the context of herding.

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Bibliographic Reference

Drehmann, M, Oechssler, J and Roider, A. 2005. 'Herding With and Without Payoff Externalities - An Internet Experiment'. London, Centre for Economic Policy Research.