Published online by Cambridge University Press: 14 February 2023
Combining experimental data sets from seven individual studies, including 255 asset markets with 2,031 participants, and 36,326 short-term price forecasts, we analyze the role of heterogeneity of beliefs in the organization of trading behavior by reproducing and reconsidering earlier experimental findings. Our results confirm prior evidence that price expectations affect trading behavior. However, heterogeneity in beliefs does not seem to drive overpricing and asset market bubbles, as suggested by earlier studies, and we find no indication of short-term beliefs being better determinants of trading behavior than longer-term beliefs.
We thank an anonymous reviewer and Jarrad Harford (the editor) as well as conference participants at 2022 Experimental Finance and the 2022 Behavioral Macroeconomics Workshop for helpful comments and suggestions. We also thank Tim Carlé and Tibor Neugebauer for clarifying details about their original analyses as well as Eric Guerci and Michelle Song for making the full data sets from Holt, Porzio, and Song (2017) and Duchêne, Guerci, Hanaki, and Noussair (2019) available. CRediT author statement: Conceptualization and Methodology: S.F., C.H., U.W.; Data curation, formal analysis, investigation, visualization, validation, and writing original draft: S.F., C.H.; Writing – review and editing: all authors. All errors are our own.