In this study, we employ a statistical arbitrage approach to demonstrate that momentum investment strategy tend to work better in periods longer than six months, a result different from findings in past literature. Compared with standard parametric tests, the statistical arbitrage method...

In this paper, we consider a multivariate shortfall risk measure with scenario-dependent allocation weights and examine its properties such as convexity and quasi-convexity. For fixed allocation weights, we show that the resulting risk measure is a convex systemic risk measure in which case the...

Using trading information of a comprehensive sample of relisted Chapter 11 firms in the past few decades, we find that the one-year market-adjusted buy-and-hold returns of post-reorg equity are over 50%. An equal-weighted calendar-time portfolio generates 7.2% annualized excess returns over a...