No abstract

We investigate how cognitive dissonance arising from interactions between sentiment and culture affects momentum and post‐earnings‐announcement‐drift (PEAD). We focus on differing views relating to change between western and East Asian cultures. Building on Hong and Stein's heterogeneous trader model and recognizing westerners’ (easterners’) belief in continuation (reversal), we propose cognitive dissonance arises in different circumstances and to differing degrees in the two cultures, resulting in it being a key driver of the anomalies. Results support our hypotheses, suggesting sentiment and culture interact to impact cognitive dissonance, explaining differences in the anomalies across countries evident in prior literature.

This paper provides strong evidence that market sentiment measured bottom-up from individual-stock sentiment is negatively related to future long-term market returns and is positively correlated with contemporaneous returns.

No abstract

No abstract