Mutual funds that track the Samp;P 500 are popular because they have significantly lower costs than the average, actively-managed equity fund. However, a measurable number of investors select index funds with excessive fees and uncompetitive returns. We call this observation the Index Fund...

First version: December 18, 2014. This version: January 12, 2015. This paper proposes and implements a statistical methodology for adjusting employment data for the effects of deviation in weather from seasonal norms. This is distinct from seasonal adjustment, which only controls for the normal...

US equity mutual funds, on average, prefer realization of capital losses to capital gains. Nevertheless, a substantial fraction exhibits the disposition effect of realizing gains more readily than losses. My analysis suggests that learning effects have reduced the manifestation of the...

We document that, on average, U.S. equity mutual funds prefer realizing capital losses rather than capital gains. A substantial fraction of the sample, however, exhibits the opposite tendency of realizing gains more readily than losses. The documented tendency for this subset appears to be due...

Using a novel return-based method to detect allocations of corporate bond offerings, which are underpriced on average, we find that mutual funds most active in the primary market generate significant alpha and outperform those that are less active. Our evidence suggests that underwriters direct...

Mutual fund families are increasingly assigning traders to manage corporate bond mutual funds. Using this setting to study the role of traders in investment management, we document that trader managers identify and exploit short-term trading opportunities at lower transaction costs. These skills...

We study the dispersion of month-end valuations placed on identical corporatebonds by different mutual funds. Such dispersion is related to bond-specificcharacteristics associated with liquidity and market volatility. TRACE may havecontributed to the general decline in dispersion over our sample...

Using detailed holdings of exchange-traded options, we examine how mutual funds use optionsand how options affect portfolio performance and risk. Options users underperform nonusers bytwo to three percent per year. The underperformance is especially pronounced for funds that areheavy users of...

US equity mutual funds, on average, prefer realization of capital losses to capital gains. Nevertheless,a substantial fraction exhibits the disposition effect of realizing gains more readily than losses. Myanalysis suggests that learning effects have reduced the manifestation of the disposition...