Cosmetics giant Maybelline markets Superstay 24 lipstick, which is supposed to be more comfortable, withstand heat and humidity, and go 24 hours without needing a transfer. Some customers decided that, despite the advertising, the lipstick did not last a full 24 hours without transfer; so they sued Maybelline claiming that it had violated various California fraud statutes.

As many lawyers know, California’s consumer fraud statutes have lesser reliance standards. For example, reliance is judged on an objective “reasonable consumer” standard that means plaintiffs often do not have to demonstrate individualized reliance to get a class certified.

So faced with … Continue Reading

Yesterday, the Supreme Court issued its opinion in Comcast Corp. v. Behrend, the antitrust case which commentators (including me) had expected would finally resolve the question of whether a trial court must apply the Daubert evidentiary standard to expert testimony in a certification debate.  It turns out we were wrong. Due to a procedural defect below (Comcast had not objected to the admissibility of the expert’s testimony in the trial court), the Court ultimately did not decide the Daubert issue. But it did issue an opinion that, while limited, provides some help to defendants at certification.

BehrendContinue Reading

On Monday, the Supreme Court heard arguments in two different class actions, united by a common problem.

The first, Comcast Corp. v. Behrend, asked whether a trial court should hold plaintiffs to the Daubert standard for expert testimony at class certification, a question that has divided federal circuits for several years. Due in part to a difficult record below (Comcast had not actually registered a Daubert objection), the Justices argued back and forth about whether there was an issue to decide at all, and, if so, what it was. At one point, Justice Kagan remakes in frustration:

I

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The last few weeks have been exceptionally busy for appellate decisions involving class actions. In addition to Judge Easterbrook’s In re Aqua Dots opinion, the Sixth Circuit’s Pipefitters opinion, the Second Circuit’s Literary Works opinion, and the Ninth Circuit’s reversal of the Bluetooth settlement, the Third Circuit has offered up a pair of opinions involving predominance and common evidence. In one, Behrend v. Comcast Corp., a panel appeared to limit the reach of In re Hydrogen Peroxide on expert evidence, affirming certification of an antitrust case again the cable provider in part because it held that a DaubertContinue Reading

One of the key issues that many (including me) assumed would be resolve in Wal-Mart v. Dukes was the question of what kind of Daubert inquiry would be necessary at the class certification stage.

The 1993 case Daubert v Merrell Dow Pharmaceuticals, Inc., involved a challenge to the longstanding "general acceptance" test for scientific evidence articulated by the D.C. Circuit Court of Appeals in Frye v. United States. The litigation in Daubert concerned infants suffering from birth defects that allegedly resulting from their mothers’ use of the anti nausea drug Bendectin. After extensive pretrial discovery, Merrell Dow … Continue Reading

A group of Florida landowners sued Raytheon Company, accusing it of contaminating their groundwater by improperly disposing of hazardous waste. The plaintiffs put up an expert who testified that he could construct a statistical model that would demonstrate liability and damages on a classwide basis.  Raytheon put up its own experts, who argued that plaintiffs’ method of defining the affected area was not consistent with "applicable professional standards," and that their expert’s statistical method was unsound as well.  

The district court threw up its hands.  Declaring 

[i]t is not necessary at this stage of the litigation to declare a

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If you’ll forgive the second piece of self-promotion in a week: the Washington Legal Foundation (which keeps the always-interesting Legal Pulse blog) has just published a Legal Opinion Letter evaluating several of the arguments in favor of overturning the 9th Circuit’s Dukes v. Wal-Mart decision, written by yours truly.  

I’ll be participating in a briefing for the WLF on this issue in a few weeks (specific details when I get them), and another one a few days later for the American Constitution Society.   … Continue Reading

The tactic is more common that one might imagine: when plaintiffs file their motion for certification, they may include an expert report from a noted law professor, testifying that their case is ideally suited for certification under Rule 23. Now, on one side of the certification debate, you have practicing lawyers zealously representing their client, and on the other, a ostensibly neutral expert in civil procedure. How can a defendant effectively oppose a motion like this?

By excluding the expert, which is easier than it first appears. Take the case of Walsh v. Principal Life Insurance Co., 266 F.R.D. … Continue Reading

In re Hydrogen Peroxide was an antitrust class action. Hydrogen peroxide is a chemical that is often used a bleach for pulp and paper. In this case, the plaintiffs, all purchasers of hydrogen peroxide and other chemicals, sued their suppliers, alleging that the defendants had sold them more expensive chemical grades when less expensive ones would have been sufficient.

Following extensive discovery, 3 plaintiffs moved to certify a class of direct purchasers of hydrogen peroxide, sodium perborate, and sodium percarbonate, over an eleven-year class period. In support of class certification, plaintiffs offered the opinion of an economist. Defendants, opposing

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