This paper examines the role conviction plays in asset management and its relationship with investment returns. We measure the strength of fund manager conviction through a fund’s Active Share, i.e., the extent to which an investment portfolio differs from its benchmark index. First, we show...

The purpose of this paper is to investigate to what extent mutual fund managers, as an important and representative group of professional investors, are prone to overconfidence and associated behavioural biases such as self-serving attribution. More importantly, we explore how these...