“…Diamond and Verrecchia (1987) show theoretically that a market with short-sale constraints incorporates information more slowly than a market in which short sales are not restricted. Empirical evidence that short sellers contribute to market efficiency and market quality can be found in, among others, Dechow, Hutton, Meulbroek, and Sloan (2001), Desai, Krishnamurthy, and Kumar (2006), Bris, Goetzmann, and Zhu (2007), Chang, Cheng, and Yu (2007), Boehmer, Jones, and Zhang (2008), Saffi and Sigurdsson (2011), and Boehmer and Wu (2013). Short positions are important hedging tools in a number of common trading strategies (e.g., hedging options, convertible bonds, or market risk in long-short strategies).…”