We show that the probability of risk parity beating any other portfolio is more than 50 percent. We also prove that if portfolio performance is measured by Sharpe ratio, risk parity is the only maximin portfolio when (1) all assets' future Sharpe ratios are greater than an unknown constant and...

We show that the profitability of time-series momentum strategies on commodity futures across their entire history is strongly sensitive to the starting day. Using daily returns with 252-day formation periods and 21-day holding periods, the Sharpe ratio depends on whether one starts on the first...

We analyze a unique, comprehensive, multi-decade dataset of all communications with clients by a boutique investment advisory and investment management firm to explore the behavior of individuals involved in financial decision making. We propose and test a theory of self-regulation to explain...

We analyze a large and comprehensive play-by-play dataset of professional games in the National Basketball Association using tools from financial economics to explore the optimality of strategically idling resources in the face of uncertain future demand. We find that starters ought to be idled...

Does better performance lead to more assets? We examine nearly 30,000 mutual funds to determine the effect that a funds outperformance relative to its peers has on the funds later asset size. We find that a fund that earns ten percent more than the size-weighted average of its peers in its style...

Drawing on and extending an estate allocation algorithm of 12th century philosopher Moses ben Maimon, we show how “Maimonides Risk Parity” can link together the equal weighted, market capitalization weighted, and risk parity portfolios in a unified, elegant, and concise theoretical...