In this case filed in California state court, plaintiffs are a nationwide class of consumers who purchased or leased a Pentium 4 microprocessor or a computer containing that microprocessor. Plaintiffs allege that defendants conspired to misrepresent various aspects of the performance of the Pentium 4 processor when it was introduced in late 2000. While the nature of the allegations involved technical aspects of computer hardware performance, a key issue in whether the class should be certified was whether it is possible to assess class-wide damages by comparing prices paid for the Pentium 4 with prices of other microprocessor/computers sold at the same time. Econ One was retained by counsel for plaintiffs to analyze class certification-related issues. Russell Lamb submitted an expert report in support of class certification which included economic models that showed it was possible to determine the extent by which prices of Pentium 4 prices were higher on a class-wide basis. Dr. Lamb also provided deposition testimony in this ongoing matter.