From 1963 through 2015, idiosyncratic risk (IR) is high when market risk (MR) is high. We show that the positive relation between IR and MR is highly stable through time and is robust across exchanges, firm size, liquidity, and market-to-book groupings. Though stock liquidity affects the...

Artificial intelligence (AI) has a growing presence in asset management and has revolutionized the sector in many ways. It has improved portfolio management, trading, and risk management practices by increasing efficiency, accuracy, and compliance. In particular, AI techniques help construct...

We separately investigate the pricing relevance of informed trading predictable from public information, and that of unpredictable idiosyncratic informed trading that potentially captures private information. We use a direct profitability-based and immediacy-driven measure of price-relevant...

This paper is the first to study the cross-section of currency excess return predictors. Using real-time data, the results provide evidence that currency excess return predictability is at least in part due to mispricing. First, the risk-adjusted profitability of systematic currency trading...