This study investigates the effect of a security regulation that occurs concomitantly with International Financial Reporting Standards (IFRS) adoption on the information content of earnings announcements in Italy. To identify the effect of this regulation, we use a treatment (i.e., Italy) and a...

Theory provides competing predictions on the question of whether informed investors immediately trade on newly generated private information. We address this question using SEC-mandated disclosures to identify the dates when new private information about target or acquiring firm value is...

The development of the Brazilian stock market has raised concerns about the practice of insider information, with several cases being documented in recent years. We hypothesize that insider trading is a form of corruption. As such, the higher the corruption level in a country, the more intense...

We show that the presence of high frequency trading (HFT) has significantly mitigated the frequency and severity of end-of-day price dislocation, counter to recent concerns expressed in the media. The effect of HFT is more pronounced on days when end of day price dislocation is more likely to be...

We examine the impact of stock exchange trading rules and surveillance on the frequency and severity of suspected insider trading cases in 22 stock exchanges around the world over the period January 2003 through June 2011. Using new indices for market manipulation, insider trading, and...

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...

We show that the presence of high frequency trading (HFT) has significantly mitigated the frequency and severity of end-of-day price dislocation, counter to recent concerns expressed in the media. The effect of HFT is more pronounced on days when end of day price dislocation is more likely to be...

Dual-listed firms simultaneously follow the relevant rules in their home country and in their cross-listed country. In contrast, other firms only listed in the cross-listed country are only subject to the local regulations. Previous literature has found evidence that cross-listing can improve...

Despite continued attempts by regulators to curtail abusive short sales and increase transparency, the pattern and practice of fraudulent manipulation continues to proliferate and threaten the capitalization of a wide variety of issuers within the securities market. Identifying a meaningful...

Analysts' functions are divided into discovery and interpretation roles, but separating between the two is non-trivial. We conjecture that analysts' interpretation skill can be gauged by their forecast revisions following material unanticipated news — in particular following non-earnings 8-K...