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Journal of Financial Economics Vol. 172 2025

Stakes and investor behaviors

Pengfei Sui1; Baolian Wang2

1 Chinese University of Hong Kong, Shenzhen · 2 Warrington Hospital

Abstract

We examine how stakes affect investor behaviors. In our unique setting, investors trade stocks in real accounts using their own money and simultaneously in a simulated setting. Our real-world within-investor estimation shows that investors exhibit stronger biases and perform worse in higher-stakes real accounts than in lower-stakes simulated accounts. Investors exhibit strong biases in both types of accounts, and the biases in both are strongly positively correlated. Such behavioral consistency suggests that low-stakes experiments are informative about real-world behaviors. Using additional account-level datasets, we demonstrate external validity by documenting a stronger (reverse) disposition effect on stocks (funds) with greater portfolio weights.

DOI
10.1016/j.jfineco.2025.104146
Volume
172
Pages
104146
Language
en
Sources
bibtex:phds-export.bib crossref openalex

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