This paper examines the relation between portfolio concentration and investment performance in corporate bond mutual funds. Using detailed holdings data, we construct portfolio concentration measures at the firm, industry, and credit rating levels. We find that portfolio concentration is...

Based on the Partial Distribution (Feng Dai, 2001), a new model to price an asset (MPA) is given. Going a step further, this paper puts forward the Multivariate Partial Distribution (MPD) for the first time. By use of MPD, we could gain a new kind of model for pricing the group assets (MPGA), in...

Extant research has focused on mutual fund managers' ability to time market returns or volatility. In this paper, we offer a new perspective on the traditional timing issue by examining fund managers' ability to time market wide liquidity. Using the CRSP mutual fund database, we find strong...