Celebrating Success: Professor Darren Duxbury and Dr Wenzhao Wang

Congratulations to Professor Darren Duxbury and his co-author Dr Wenzhao Wang, who have had a paper entitled “Institutional Investor Sentiment and the Mean-Variance Relationship: Global Evidence” accepted for publication in the Journal of Economic Behavior and Organization.

“In the paper, we provide a global assessment of the impact of institutional investor sentiment on the risk-return tradeoff in stock markets.  Our empirical evidence supports the differential impact of institutional investor sentiment on the mean-variance relation (i.e., positive or negative), both across regions and across markets. In particular, for markets with cultural proneness to overreaction and a low level of market integrity, institutional investor sentiment tends to distort the risk-return tradeoff.  Our findings cast doubt on the sophisticated and rational behavior conventionally associated with institutional investors.”

Abstract

Although a cornerstone of traditional finance theory, empirical evidence in support of a positive mean-variance relation is far from conclusive, with the behavior of retail investors commonly thought to be one of the root causes of departures from this expected relationship. The behavior of institutional investors, conventionally thought to be sophisticated and rational, has recently come under closer scrutiny, including in relation to investor sentiment. Drawing together these two strands of literature, this paper examines the impact of institutional investor sentiment on the mean-variance relation in six regions, including Asia (excl. Japan), Eastern Europe, Eurozone, Japan, Latin America, and the US, and across thirty-eight markets. Empirical evidence supports the differential impact of institutional investor sentiment on the mean-variance relation (i.e., positive or negative), both across regions and across markets. In particular, for markets with cultural proneness to overreaction and a low level of market integrity institutional investor sentiment tends to distort the risk-return tradeoff.