“Pitfalls to Avoid in Proving Price Fixing Damages”, ABA Antitrust Litigator (Spring 2006) at 1, examines oligopoly theory and market factors that could affect prices independent of any conspiracy.  The article discusses the various techniques (e.g., regression analyses and game theory) that economists can use to isolate the price effect caused by a price fixing or market allocation conspiracy.  The article shows how each of these models can fail to account for independent market forces and whether those flaws should result in exclusion of the model or diminish its credibility.