This paper develops a dynamic model of asset price behavior based upon the arrival and diffusion of rumors in a securities market. The model is based upon a time-homogeneous pure birth process in which the number of informed and uninformed traders varies probabilistically over time as learning...

The on-going debate over whether fund managers have skills and whether those skills are short-lived is still inconclusive. Using the performance measure that can't be manipulated with respect to the underlying distribution, time variation, nor estimation error, (the manipulation-proof...

This study investigates the degree to which orders are aggressively priced, paying particular attention to odd lot orders, and examines whether odd lot orders are being successfully used in stealth trading strategies. We find that odd lot orders execute at higher frequencies, which is due to odd...

We find that the acceleration and deceleration patterns of historical prices are predictive of future expected returns in momentum investing in the U.S. equity market from 1962 to 2014. Winners with accelerated historical price increases deliver higher future expected returns and losers with...

Previous studies have focused on which stocks are winners or losers but have paid little attention to the formation process of past returns. This paper develops a model showing that past returns and the formation process of past returns have a joint effect on future expected returns. The...