Antitrust & Competition Policy Blog

Editor: D. Daniel Sokol
University of Florida
Levin College of Law

Monday, April 22, 2013

Webinar: Detecting Cartels and Collusive Behavior - May 1, 2013

Posted by D. Daniel Sokol

Bob Marshall - Penn State and Leslie Marx - Duke (recently named one of the GCR Women in Antitrust) are among the very top cartel experts in the world. Their writing on collusion has been path breaking. I also note with great pride that they are authors of a chapter in my forthcoming Oxford Handbook of International Antitrust Economics (Oxford University Press, Roger D. Blair & D. Daniel Sokol, forthcoming). Their consulting firm, Bates White, is hosting an event that is worth an hour of your time.

Webinar: Detecting Cartels and Collusive Behavior

  • May 1, 2013
  • 1:00 pm —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.

To register for the webinar, please click here.


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

For a short and readable summary of some of Bob and Leslie's ideas on the meaning of an "agreement, see their excellent work on super "plus factors" here.

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