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Posts Tagged ‘statistics’

Price Waterhouse Coopers recently published an interesting study entitled Daubert challenges to financial experts, a yearly study of trends and outcomes, 2000–2015 (click the link to download a copy).

The study includes citations to recent opinions on the subject, along with practical insights from attorneys, including yours truly.  It concludes with a variety of useful statistics on the outcomes of Daubert challenges to financial experts, including the types of cases in which the change is made, the types of experts excluded, the jurisdictions in which exclusion rates are higher or lower, and the reasons for exclusion, among other things.  The study includes information on Daubert challenges in the class certification context that will no doubt prove useful in dealing with other types of experts as well as financial experts.  Be sure to check it out!

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The Supreme Court issued its decision today in Tyson Foods, Inc. v. Bouaphakeo, No. 14-1146, a case that many commentators predicted would provide an opportunity for the Court to limit or bar the use of statistical evidence as a substitute for common proof in class actions.  The majority opinion, authored by Justice Kennedy, rejected the invitation to create a “broad rule” limiting the use of statistical evidence, however.  Instead, the Court offered practical guidance on the situations in which statistical evidence may or may not be appropriate.  The relevant portion of the opinion is short and succinct, so I have quoted it in its entirety below:

[P]etitioner and various of its amici maintain that the Court should announce a broad rule against the use in class actions of what the parties call representative evidence. A categorical exclusion of that sort, however, would make little sense. A representative or statistical sample, like all evidence, is a means to establish or defend against liability. Its permissibility turns not on the form a proceeding takes—be it a class or individual action—but on the degree to which the evidence is reliable in proving or disproving the elements of the relevant cause of action. See Fed. Rules Evid. 401, 403, and 702.

It follows that the Court would reach too far were it to establish general rules governing the use of statistical evidence, or so-called representative evidence, in all class-action cases. Evidence of this type is used in various substantive realms of the law. Brief for Complex Litigation Law Professors as Amici Curiae 5–9; Brief for Economists et al. as Amici Curiae 8–10. Whether and when statistical evidence can be used to establish classwide liability will depend on the purpose for which the evidence is being introduced and on “the elements of the underlying cause of action,” Erica P. John Fund, Inc. v. Halliburton Co., 563 U. S. 804, 809 (2011).

In many cases, a representative sample is “the only practicable means to collect and present relevant data” establishing a defendant’s liability. Manual of Complex Litigation §11.493, p. 102 (4th ed. 2004). In a case where representative evidence is relevant in proving a plaintiff’s individual claim, that evidence cannot be deemed improper merely because the claim is brought on behalf of a class. To so hold would ignore the Rules Enabling Act’s pellucid instruction that use of the class device cannot “abridge . . . any substantive right.” 28 U.S.C. § 2072(b).

Those who were hoping for a rule barring statistical evidence as a proxy for common evidence in class actions will no doubt be disappointed, but Justice Kennedy’s opinion does go much further than it had to in beginning to develop standards that will govern resolution of the issue in future cases.  To summarize:

  1. There is no general rule barring the use of statistics to prove class-wide liability in a class action.
  2. The extent to which statistical evidence is allowable in a class action depends on whether the evidence is reliable in proving or disproving the elements of a relevant cause of action.
  3. Statistical evidence is admissible in a class action if it would be admissible in an individual action to prove or disprove elements of a plaintiffs’ claim.
  4. Whether statistical evidence can be used to establish class-wide liability depends on the purpose for which the evidence is being introduced and on “the elements of the underlying cause of action.”

As a final side-note, the decision in Tyson Foods does not appear to have been impacted at all by the recent death of Justice Scalia.  Only two of the eight remaining Justices, Justices Thomas and Alito, dissented.

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Thomson Reuters contributor Alison Frankel interviewed me for an article she posted today on the class action cases pending during the current Supreme Court term.  Here is a link to her article.  For those who are not familiar with Frankel’s On the Case Blog, be sure to add it to your regular reading list.  She is one of the best in the business.

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I’ll be on the faculty of an upcoming Strafford CLE webinar entitled Statistics in Class Certification and at Trial: Leveraging and Attacking Statistical Evidence in Class Actions to be held next Tuesday, May 12, 2015, at 1:00 p.m. EDT.  This is a reprise of a program that I have done several times with Thompson Hine Partner Brian Troyer, and we’re pleased to be joined this time around by Edward J. Wynne of the Wynne Law Firm.

Click on this link to register and take advantage of a special 50% discount to the program.

 

 

 

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In keeping with the time-honored tradition of end-of-the-year top 10 lists, I’ve assembled my annual list of the top 10 most significant class action developments below.  Whether these are actually the top 10 most significant decisions over the past year may be subject to reasonable debate, so please feel free to add your own favorites in the comments section.

1. Certiorari denied in “moldy washer” cases – In my view, the single biggest development impacting class action practice over the past year was the Court’s decision not to take on the question of “issue certification” presented in the Sears and Whirlpool “moldy washer” cases.  This non-decision opens the door for significant litigation over whether isolated issues should be certified for class treatment even where significant individual litigation would be necessary following resolution of the class wide issues.

2. Judge Posner’s class action settlement decisions – Judge Posner wins the award for the jurist having the single biggest impact on class action practice in 2014.  In addition to the Supreme Court declining to take on review of his decision in one of the “moldy washer” cases, Butler v. Sears, Roebuck & Co., Judge Posner authored two significant (and harshly worded) decisions discussing the standards for evaluating the fairness of class action settlements, including Eubank v. Pella Corp., Nos. 13-2091, -2133, 2136, -2162, 2202 (7th Cir., June 2, 2014), and Redman v. RadioShack Corp., case number 14‐1470, 14‐1471 and 14‐1658 (7th Cir., Sept. 19, 2014).  These decisions are emblematic of a more general trend in the courts of subjecting class action settlements, especially coupon settlements, to ever-greater scrutiny.

3. Basic framework remains largely unchanged after Halliburton II – One of only three Supreme Court decisions of significance on class action issues this past year, the Court largely maintained the status quo in declining to overrule the framework for evaluating “fraud on the market” theory of reliance in securities class actions.

4. Whirlpool trial ends with victory for the defendant – Not long after the Supreme Court declined review, the first of the “issue” class cases went to trial against Whirlpool.  The trial ended in a defense verdict, although as I wrote in October, I’m not sure that’s necessarily a good thing for defendants in the long-term.

5. Court clarifies removal pleading standards in Dart Cherokee Basin Operating Co. v. Owens – In one of the Roberts Court’s most helpful class-action-related decisions, at least from a practical standpoint, the majority removed barriers to corporate defendants’ ability to remove cases under the Class Action Fairness Act (CAFA), clarifying that jurisdictional facts need only be pled, not supported by evidence, in the notice of removal.

6. California Supreme Court issues significant decision on the use of statistical evidence to support class certification – An individual state court decision has to be pretty significant to make my annual top 10 list, but I think Duran v. U.S. Bank National Association fits the bill.  The decision is one of the most comprehensive to date in addressing the potential pitfalls of reliance on statistics as a proxy for common, class wide proof.

7. Supreme Court holds in AU Optronics that consumer actions brought by state attorneys general are not “mass actions” subject to the Class Action Fairness Act – It’s probably a misnomer to call AU Optronics a “class action” case, since the issue presented was whether actions brought by state AGs on behalf of consumers were “mass actions.”  But because the case involved interpretation of CAFA, it makes this year’s list.

8. International class and collective action litigation continues to expand – Class, collective, and multi-party actions continue to expand outside of the United States and Canada.  Examples included France joining the list of Civil Law jurisdictions in Europe to enact a “class action” law, and a group action in Austria, joined by more than 25,000 litigants, challenging Facebook privacy policies.

9. Data breach class actions proliferate – High profile data breaches and hacking incidents made news, and resulted in class actions, in 2014.  From a rash of payment card breaches impacting customers of large retailers like Target and Home Depot to the more recent Sony hacking incident, data breach class action litigation shows no signs of slowing down any time soon.

10. Supreme Court grants, then dismisses, certiorari in Public Employees’ Retirement System of Mississippi, v. IndyMac MBS, avoiding a high court ruling on the question of whether statute of repose can be tolled for absent class members under the American Pipe tolling doctrine.  In what has become a trend of the past year, this is yet another missed opportunity for the Supreme Court to address a class action issues of significance.

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The California Supreme Court issued its long-awaited decision in Duran v. U.S. Bank National Association yesterday, addressing the use of statistical sampling as a way of evaluating aggregate liability and damages in a class action. Although Duran is a wage and hour case, its analysis is pertinent to the use of statistical evidence in a variety of other class action contexts.

In the opening line of his majority opinion, Justice Corrigan referred to Duran “an exceedingly rare beast” because it was a wage and hour class action that had proceeded all the way through trial to verdict.  In the trial court, the plaintiff had presented testimony from statistician Richard Drogin, who had also notably served as an expert for the plaintiffs in Walmart Stores Inc. v. Dukes.  Drogin proposed a random sampling analysis that purported to estimate the percentage of the defendant’s employees that had been misclassified for purposes of entitlement to overtime pay.  The trial court did not rely on Drogin’s analysis but instead came up with its own sampling approach, which involved pulling the names of 20 class members, hearing testimony from these witnesses along with the named plaintiffs, and then extrapolating the court’s factual findings across the entire class in order to determine the defendant’s liability.

The supreme court affirmed a decision by the Court of Appeal holding that this sampling approach violated due process and was a manifest abuse of discretion.  Generally, there were two independent reasons for the supreme court’s conclusion: 1) the use of random sampling deprived the defendant of the opportunity to present individualized evidence supporting its defenses to the claims; and 2) the sampling method adopted by the court was inherently flawed and unreliable.

Without categorically rejecting the use of statistics as a tool in managing class action litigation, the supreme court identified numerous conceptual limitations on its use.  First, “[s]tatistical methods cannot entirely substitute for common proof . . . .  There must be some glue that binds class members together apart from statistical evidence.”  So, while statistics may serve as circumstantial evidence to support a common issue–such as the existence of centralized policy or practice, they may not be used as a substitute for establishing commonality or for avoiding individualized determination of individual issues–such as by generalizing effects of a given policy or practice on large groups of claimants where the effects vary in actuality.

Second, a trial court cannot utilize statistical evidence in a way that prevents the individual adjudication of individual defenses.  Although courts are encouraged to develop innovative procedures in managing individual issues, a court cannot ignore individual issues altogether or prevent them from being decided on an individual basis.

Third, if statistical evidence is to be used as part of a litigation plan for managing complex class action, the methods to be employed should be presented, evaluated, and scrutinized at the class certification stage.  The court should not simply assume that statistical methods will permit class treatment and certify the class based on this hypothetical possibility.

Fourth, the court must ensure that the statistical method to be employed has to be reliable, based on statistically valid data, and not prone to a high margin of error.  In other words, junk science or ad hoc, rough justice are not enough.

The Duran opinion is worthy of careful study for anyone considering the use of statistics in class certification proceedings, both in the wage and hour context and in class actions more generally.  It also provides a colorful illustration of the due process and manageability problems posed by the “trial by formula” approach to class actions that the United States Supreme Court criticized in Dukes.

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I’m very excited to be speaking at a Strafford Publications CLE webinar tomorrow entitled: Statistics in Class Action Litigation: Admissibility, Expert Witnesses and Impact of Comcast v. Behrend.   The program is scheduled for June 18, 2013 at  1:00pm-2:30pm EDT.  This is the third iteration of this presentation, which has been updated to offer insights in light of the Supreme Court’s Comcast decision earlier this term.  Brian Troyer of Thompson Hine in Cleveland and Justin Hopson and Rick Preston from Hitachi Consulting in Denver will be co-presenting.  Below is a synopsis of the program.  Click here for more information and to register:

Class certification standards have become more rigorous, and the skillful use of statistical evidence is an important part of class actions. Effectively employing or challenging statistics can make a difference in winning or losing a class certification motion.

Statistical evidence is introduced through expert witness testimony, and Daubert challenges may be an effective strategy. This raises the issue of the scope of the court’s inquiry into the merits at the class certification stage.

The 2011 Wal-Mart v. Dukes Supreme Court ruling underscored the prominent role of statistical evidence in assessing the merits at the certification stage. The Court’s recent Comcast v. Behrend ruling reinforces Dukes regarding merits assessments at class certification, thus impacting the continued role of statistical evidence.

Listen as our experienced panel examines statistical evidence in certification proceedings, the impact of Comcast v. Behrend and related case law, and best practices for using statistics and cross-examining witnesses.

Outline

  1. Role of statistical evidence in support of class certification
  2. Expert testimony and Daubert analysis at class certification stage
  3. Impact of Comcast v. Berhrend and Wal-Mart v. Dukes
  4. Science of statistics and cross-examining the statistics witness

Benefits

The panel will review these and other key questions:

  • What is the impact of Comcast and Dukes upon the use of statistical analysis at class certification?
  • What strategies can counsel use to effectively cross-examine statistics witnesses?
  • What types of statistics can be introduced and what are the proper ways to utilize statistics?

Following the speaker presentations, you’ll have an opportunity to get answers to your specific questions during the interactive Q&A.

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