We investigate statistical arbitrage strategies when there is ambiguity about the underlying time-discrete financial model. Pricing measures are assumed to be martingale measures calibrated to prices of liquidly traded options, whereas the set of admissible physical measures is not necessarily...

We study arbitrage in ETFs holding illiquid corporate bonds, focusing on authorized participants (APs) and their balance sheet space constraints. As unique ETF arbitrageurs, most APs are also bond dealers, and they use their own balance sheet in both roles. We find that bond market illiquidity...

We study fragmentation of equity trading using a model of imperfect competition among exchanges. In the model, increased competition drives down trading fees. However, additional arbitrage opportunities arise in fragmented markets, intensifying adverse selection. These opposing forces imply that...

Evidence of a negative relationship between extreme positive returns and future returns has been reported in developed markets; a result that has been attributed to mispricing (Bali, Cakici, & Whitelaw, 2011; Zhong & Gray, 2016). This study examines this MAX anomaly across advanced emerging markets,...

We examine the causal effect of limits to arbitrage on 11 well-known asset pricing anomalies using the pilot program of Regulation SHO, which relaxed short-sale constraints for a quasi-random set of pilot stocks, as a natural experiment. We find that the anomalies became weaker on portfolios...

Using confidential data on the foreign operations of US multinational firms, I examine innovation in the context of an unexpected policy shock that facilitated foreign tax arbitrage. I find that after the shock, US multinationals shifted more of their intellectual property and taxable income to...

The literature on corporate acquisitions reports a persistent empirical regularity: acquisition announcements by small bidders create greater shareholder value than those by large bidders. This paper presents evidence that greater shareholder gains to small bidders' announcements reflect...

We examine net arbitrage trading (NAT) measured by the difference between quarterly abnormal hedge fund holdings and abnormal short interest. NAT strongly predicts stock returns in the cross section. Across 10 well-known stock anomalies, abnormal returns are realized only among stocks...