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 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 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...

We estimate a heterogeneous agent model on five prominent equity investment styles - value, size, profitability, investment, and momentum - and find evidence for behavioral heterogeneity in expected return formation. Our model features two groups of boundedly rational investors, fundamentalists...

This paper studies the added value of intentional style herding for mutual fund managers. We find that herding in styles is significant and persistent, especially for active funds. We also report that herding tends to increase after periods of high market volatility, and decrease with sentiment....

The joint-hypothesis problem casts doubt on the results of market efficiency research. Specifically, it is hard to assess to what extent financial markets reflect economic fundamentals or mispricing. To address this issue, we study price formation in a large virtual asset market where...