We study the behavior of short sellers as informed market participants and examine potential sources of their information. Using a newly available dataset with high-frequency short sales data, we find evidence of significant increases in short sales immediately prior to large insider sales, but...

In frictionless capital markets with complete information and rational investors, stock prices adjust to new information instantaneously and completely. However, a substantial body of research studies information imperfections such as asymmetric information and incomplete information....

Empirical evidence suggests that information leakage in capital markets is common. We present a trading model to study the incentives of an informed trader (e.g., a well informed insider) to voluntarily leak information about an asset's value to one or more independent traders. Our model shows...

Extant studies provide two additional explanations other than backdating for the abnormal stock returns around CEO option grants – timing of option grants and timing of corporate disclosures. We examine the effect of the Sarbanes-Oxley Act of 2002 (SOX), the stock option backdating scandal,...

Motivated by investor disagreement and corporate disclosure literatures, we examine how stock price shocks affect future stock returns. We find that both large short-term price drops and hikes are followed by negative abnormal returns over the subsequent year, consistent with the conjecture that...

We test the hypotheses that (i) poor accounting quality is associated with delayed stock price adjustment to information, and (ii) the accounting quality component of price delay predicts stock returns. We define accounting quality as the precision with which financial reporting informs equity...

Using a machine learning approach to process 11 million tweets posted by S&P 1500 firms from 2011 through 2016, we find that poor corporate social responsibility (CSR) performance firms tweet more about CSR activities and use tweets that are shorter, and with more passive voice and extreme tone....

This paper uses transaction-level fund trading data from the United States to study the information advantage of institutional investors. Our research design follows a two-step procedure. In the first step, we identify funds that sell shares in firms before their unexpected revelation of stock...

Prior studies have documented the asymmetrical behavior of selling, general and administrative (SGamp;A) costs (i.e., SGamp;A costs increase more when activity rises than they decrease when activity falls), and have explained this phenomenon primarily with economic factors. Drawing on agency...

This paper presents evidence on the correlation between stock returns in January and the earnings information released in the month. The annual earnings announced in January are predominantly positive, and the stock returns in late January are abnormally high than in the remainder of the year....