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Motivated Beliefs about Stock Returns

30 novembre 2021
2:00 pm
San Francesco Complex - classroom 1

Does buying a stock bias one’s expectations about its future value? We find experimental evidence that it does. First, in a laboratory experiment, we elicit peoples’ price predictions for simulated stocks and compare them to the Bayesian benchmark. Then, in a second experiment, we elicit peoples’ daily price predictions for real stocks over a six-week period. In both experiments, we find that people predict higher future values for losing stocks when they happen to hold them. This result provides the first direct evidence of a beliefs-based explanation for investors’ reluctance to sell losers, as in the well-known disposition effect.

Joint work with Carlos Cueva

 

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relatore: 
Iñigo Iturbe-Ormaetxe - University of Alicante
Units: 
AXES