This paper investigates whether the business press serves as an information intermediary. The press potentially shapes firms' information environments by packaging and disseminating information, as well as by creating new information through journalism activities. We find that greater press...

This paper finds that the majority of stock price movements remain unexplained after controlling for both public and private information. This suggests that economists' inability to explain asset price movements is the result of either noise or naive asset pricing models.

We develop a model of an order-driven exchange competing for order flow with off-exchange trading mechanisms. Liquidity suppliers face a trade-off between benefits and costs of order exposure. If they display trading intentions, they attract additional trade demand. We show, in equilibrium,...

This study examines short selling in stocks of firms that reveal partial earnings-related information prior to their eventual earnings announcements (EA). By decomposing short selling into two components where the first corresponds to the final partial earnings disclosure and the second captures...

We examine derivatives trading prior to takeover rumors in a sample of 1,638 publicly traded U.S. firms. The volume of options traded is abnormally high over the 5-day pre-rumor period, primarily due to the number of out-of-the-money call options traded. In addition, the direction of option...

Government agencies routinely allow pre-release access to information to accredited news agencies under embargo agreements. Using high frequency data, we find evidence consistent with informed trading during embargoes of the Federal Open Market Committee's scheduled announcements. The E-mini S&P...

Prior research generally finds that the financial media levels the playing field among investors by reducing information acquisition costs for unsophisticated investors. In the setting of information transfers, I demonstrate that when media coverage is likely to reduce the industry information...

Using instant message communications and trading records of professional traders, we directly measure how investment information propagates in traders’ social networks and how it affects their trading decisions and performance. Traders are more likely to mention stocks with gains over losses,...

Motivated by research in psychology and experimental economics, we assume that investors update their beliefs about an asset's value upon observing the price, but only when the price clearly reveals that others obtained private information that differs from their own private information....

Motivated by research in psychology and experimental economics, we assume that investors update their beliefs about an asset's value upon observing the price, but only when the price clearly reveals that others obtained private information that differs from their own private information. In...