This paper investigates whether investor sentiment can explain stock return comovements. Our findings demonstrate that since the 1960s, there has been a clear and rapid increase in correlations between international equity markets. Decomposing the equity returns into fundamental and...

This paper proposes a novel approach to determine whether mutual funds time the market. The proposed approach builds on a heterogeneous agent model, where investors switch between cash and stocks depending on a certain switching rule. This represents a more flexible, intuitive, and parsimonious...

This paper investigates whether investor sentiment can explain stock return comovements. Our findings demonstrate that since the 1960s, there has been a clear and rapid increase in correlations between international equity markets. Decomposing the equity returns into fundamental and...

This paper examines the style-based feedback trading behavior of mutual fund managers. We provide an empirical version of the model for style-switching behavior of Barberis and Shleifer (2003). We find style-based feedback trading for 77% of the funds, half of which is positive- (negative-)...

This paper introduces a Heterogeneous Agent Model (HAM) for foreign exchange fund managers, and estimates it on currency trader indices. Fund managers dynamically allocate capital conditional on recent performance to a value strategy, a momentum strategy, and a carry strategy. Estimation results...

This paper studies the extent of feedback trading at the style level by hedge funds from both a positive and a normative perspective. We show that hedge funds continuously adjust their exposure to different risk factors conditional on the recent performance of these styles. The majority of funds...