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Article Dans Une Revue Journal of Economic Behavior and Organization Année : 2017

Do investors trade too much? A laboratory experiment

Résumé

We run an experiment to investigate the emergence of excess and synchronised trading activity leading to market crashes. Although the environment clearly favours a buy-and-hold strategy, we observe that subjects trade too much, which is detrimental to their wealth given the implemented market impact (known to them). We find that preference for risk leads to higher activity rates and that price expectations are fully consistent with subjects’ actions. In particular, trading subjects try to make profits by playing a buy low, sell high strategy. Finally, we do not detect crashes driven by collective panic, but rather a weak but significant synchronisation of buy activity.
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Dates et versions

hal-01244465 , version 1 (18-03-2020)

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João da Gama Batista, Domenico Massaro, Jean-Philippe Bouchaud, Damien Challet, Cars Hommes. Do investors trade too much? A laboratory experiment. Journal of Economic Behavior and Organization, 2017, 140 (August 2017), pp.18-34. ⟨10.1016/j.jebo.2017.05.013⟩. ⟨hal-01244465⟩
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