US

Working Paper

01 March 2017

Corporate Opportunities in the US and in the UK: How Differences in Enforcement Explain Differences in Substantive Fiduciary Duties

Fiduciary duties are often today held out as typical instruments of shareholder protection in the common law of both the US and the UK, which are sometimes held out as examples for a consensus model for what is considered good corporate...

Martin Gelter | Geneviève Helleringer
01 August 2016

After Halliburton: Event Studies and Their Role in Federal Securities Fraud Litigation

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...

Jill Fisch | Jonah Gelbach | Jonathan Klick
01 April 2015

The Great Pyramids of America: A Revised History of US Business Groups, Corporate Ownership and Regulation, 1930-1950

Most listed firms are freestanding in the U.S, while listed firms in other countries often belong to business groups: lasting structures in which listed firms control other listed firms. Hand-collected historical data illuminate how...

Eugene Kandel | Konstantin Kosenko | Randall Morck | Yishay Yafeh
01 May 2014

Comparing Insider Trading in the United States and in the European Union: History and Recent Developments

In the European Union insider trading has been regulated much more recently than in the United States, and it can be argued that, at least traditionally, it has been more aggressively and successfully enforced in the United States than...

Marco Ventoruzzo

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