Economist David Gulley, Ph.D., of Navigant Consulting, has authored an informative white paper entitled Recent Trends in Rule 23 Class Certification Expert Analysis. Dr. Gulley's article explores the expanding role of experts and increased scrutiny over expert opinion testimony in class certification proceedings in light of recent federal appellate decisions placing renewed emphasis on the rigorous analysis standard. See the Second Circuit's opinion in In re IPO Securities Litigation and the Third Circuit's opinion in In re Hydrogen Peroxide Antitrust Litigation. The paper is a great resource for both class action attorneys and experts who are asked to testify in class certification proceedings.