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Webinar: Detecting Cartels and Collusive Behavior

May 1, 2013
1:00 – 2:00 pm

In this webinar, Professors Robert Marshall and Leslie Marx offer an examination of specific economic actions, called “super plus factors,” and how they can be used as indicators of collusion among a collection of firms. They will demonstrate how successful collusion requires three different types of enforcement structures among the colluding firms to prevent secret deviations and how these structures generate “super plus factors” that are consistent with explicit collusive actions.

Drawing from their extensive experience as consulting experts they use examples from cases, and from their recent book, The Economics of Collusion: Cartels and Bidding Rings, to help lawyers understand how they can detect collusive behavior in a company’s divisions, among competitors, or within a market. Understanding “super plus factors” and the mechanics of establishing collusion through “economic circumstantial evidence” equips lawyers with information to proactively monitor pricing activity and potentially detect aberrant, anti-competitive behavior in the market.


William Kovacic, Professor of Law, George Washington University (Moderator)

Robert Marshall, Bates White Partner and Professor of Economics, Penn State University 

Leslie Marx, Bates White Partner and Professor of Economics, Duke University

The Economics of Collusion 

To read more about Drs. Marshall and Marx’s book, including links to book reviews, please click here.

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