We investigate and test hypotheses on how informed trading varies with market-wide factors and the structural and trading characteristics of a firm. We find strong evidence of commonality in informed trading, and a systematic dependence of informed trading on firm characteristics that is largely...

Regulatory and media concern has focused heavily on the potentially manipulative distortion of market prices associated with naked short selling. However, naked shorting can also have beneficial effects for liquidity and pricing efficiency. We empirically investigate the impact of naked...

We investigate the association of various firm-specific and market-wide factors with the riskneutral skewness (RNS) implied by the prices of individual stock options. Our analysis covers 149 U.S. firms over a four-year period. Our choice of firms is based on adequate liquidity and trading...

This paper introduces Schumpeter's idea of creative destruction into asset pricing. The key point of our model is that small and value firms are more likely destroyed during technological revolutions, resulting into higher expected returns for these stocks. A two-factor model including market...

This paper develops a new approach that controls for commonalities in actively managed investment fund returns when measuring their performance. It is well-known that many investment funds may systematically load on common priced factors omitted from popular models, exhibit similarities in their...

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

This paper introduces two measures to investigate potential window-dressing behavior among mutual fund managers. We show that unskilled managers that perform poorly are more likely to window dress by strategically purchasing winner stocks and selling loser stocks near quarter ends. Further,...

Whether financial advisors provide useful services for clients that seek to invest in mutual funds remains an open question. We are the first to show that financial advisors generate tangible benefits for their clients in the form of useful tax advice. Specifically, financial advisors help...