Litigation Commons^™

The Rule Of Reason, Herbert J. Hovenkamp

All Faculty Scholarship

Antitrust’s rule of reason was born out of a thirty-year (1897-1927) division among Supreme Court Justices about the proper way to assess multi-firm restraints on competition. By the late 1920s the basic contours of the rule for restraints among competitors was roughly established. Antitrust policy toward vertical restraints remained much more unstable, however, largely because their effects were so poorly understood.

This article provides a litigation field guide for antitrust claims under the rule of reason – or more precisely, for situations when application of the rule of reason is likely. At the time pleadings are drafted and even up …

The Logic And Limits Of Event Studies In Securities Fraud Litigation, Jill E. Fisch, Jonah B. Gelbach, Jonathan Klick

All Faculty Scholarship

Event studies have become increasingly important in securities fraud litigation after the Supreme Court’s decision in Halliburton II. Litigants have used event study methodology, which empirically analyzes the relationship between the disclosure of corporate information and the issuer’s stock price, to provide evidence in the evaluation of key elements of federal securities fraud, including materiality, reliance, causation, and damages. As the use of event studies grows and they increasingly serve a gatekeeping function in determining whether litigation will proceed beyond a preliminary stage, it will be critical for courts to use them correctly.

This Article explores an array of …