This chapter discusses the evolution of economic and statistical models used in antitrust class certification proceedings. Since some courts have found that models relying on “average” results are not appropriate in that context, more complex and sophisticated models have been introduced to assess individualized issues of impact. However, those later generation models introduce further and different complications of analyzing antitrust impact in the context of class actions.
This chapter appears in the 2023 edition of Antitrust Economics for Lawyers. For more information, click here.