Event studies play a central role in class action securities fraud litigation. Event studies are used to assess market efficiency, price impact, loss causation, and damages, all of which are essential elements of a securities fraud claim. However, a substantial increase in market-wide...

This paper executes a simple event study of the effects of securities litigation on stock returns. Securities litigation is a common occurrence on the US investment markets, via which shareholders aim to recover losses they have suffered as a result of managerial misconduct. Filing lawsuits,...

This paper executes a simple event study of the effects of securities litigation on stock returns. Securities litigation is a common occurrence on the US investment markets, via which shareholders aim to recover losses they have suffered as a result of managerial misconduct. Filing lawsuits,...

This study examines the spillover effect of securities litigation. Peers of the sued firm have negative three-day abnormal returns around case filings and continue underperforming over sixty trading days. Peers also improve financial reporting quality and change qualitative disclosure...

On December 19, 1995, President Clinton vetoed the Private Securities Litigation Reform Bill because he disapproved of certain provisions in the bill, which restrict the ability of private litigants to sue for securities fraud. This study shows that the stock price reaction to the veto is...

Are event studies in securities litigation reliable? Basic's fraud-on-the-market presumption sparked the wide use of event studies in securities litigation, and the Supreme Court's 2014 decision in Halliburton will make event studies even more important, as litigants fight over the existence of...

We examine two distinct forms of information bundling that can occur when a firm releases a restatement: “positive bundling,” the release of good news with the restatement, and “negative bundling,” the release of additional bad news. We use a triple differences testing approach to...

The paper offers an empirical analysis of the effects of sanctions decided by the Financial Markets Authority (AMF) on the reputation of firms in France. Using an event study, we intend to show the impact of three events on the stock prices: opening of an investigation by the AMF; issuance of a...

Investors tend to litigate large stock price declines, i.e., file “stock-drop lawsuits”. Enterprising plaintiffs' attorneys seek to take advantage of the stock market declines that have accompanied the COVID-19 outbreak in early 2020 by filing class action lawsuits. However, it is less clear...

This study provides evidence that short selling influences the disclosure of bad news by firms. Managers have incentives to withhold or delay the release of bad news. As informed traders, short sellers enhance the informativeness of stock prices, especially related to bad news, potentially...