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08.10.2018 | Original Research | Ausgabe 2/2019 Open Access

Review of Quantitative Finance and Accounting 2/2019

Investor sentiment and the cross-section of stock returns: new theory and evidence

Zeitschrift:
Review of Quantitative Finance and Accounting > Ausgabe 2/2019
Autoren:
Wenjie Ding, Khelifa Mazouz, Qingwei Wang
Wichtige Hinweise
We thank two anonymous referees, Cheng-Few Lee (the editor), Darren Duxbury, Danial Hemmings, Dylan C. Thomas as well as participants at Behavioral Finance Working Group Conference, Xiamen-Newcastle-Cardiff Conference and Cardiff University for helpful discussions. All errors and omissions are ours.

Abstract

We extend the noise trader risk model of Delong et al. (J Polit Econ 98:703–738, 1990) to a model with multiple risky assets to demonstrate the effect of investor sentiment on the cross-section of stock returns. Our model formally demonstrates that market-wide sentiment leads to relatively higher contemporaneous returns and lower subsequent returns for stocks that are more prone to sentiment and difficult to arbitrage. Our extended model is consistent with the existing empirical evidence on the relationship between sentiment and cross-sectional stock returns. Guided by the extended model, wen also decompose investor sentiment into long- and short-run components and predict that long-run sentiment negatively associates with the cross-sectional return and short-run sentiment positively varies with the cross-sectional return. Consistent with these predictions, we find a negative relationship between the long-run sentiment component and subsequent stock returns and positive association between the short-run sentiment component and contemporaneous stock returns.

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