Antitrust expert witnesses

Expert class library · 8 classes

The economists in cartel, monopolization and labor-market cases: overcharge models, class-wide impact, pass-through and market definition, for plaintiffs and defendants.

Each class is defined by role and method, never by a person or a firm. Open one for what it is retained to answer, how its testimony is attacked under Rule 702, and the rulings, each read in the opinion.

Usually retained by plaintiffs

Cartel-overcharge damages economist

Before-and-after regression · Benchmark or yardstick comparison

Plaintiff common-impact economist

Pricing structure analysis · Class-wide regression with impact dummies

Exclusionary-conduct damages economist

But-for market share modeling · Yardstick and benchmark analysis

Labor-market antitrust economist

Compensation structure analysis · Wage regression with conduct variables

Usually retained by the defense

Defense class-certification antitrust economist

Uninjured class member analysis · Disaggregated regression testing

Defense cartel econometrician

Re-estimation of the plaintiffs' overcharge regression · Benchmark period and structural break testing

Retained by either side

Indirect-purchaser pass-through economist

Pass-through regression · Distribution chain mapping

Market-definition economist

Hypothetical monopolist (SSNIP) test · Critical loss analysis

Recent rulings

The 12 most recent of 28 rulings in this practice, newest first. Each links to the free opinion on CourtListener and to the class it belongs to.

OutcomeCaseCourtExpert class
Exclusion reversedTeradata Corp. v. SAP SE124 F.4th 5559th Cir. 2024Market-definition economist
AdmittedOlean Wholesale Grocery Co-Op v. Bumble Bee Foods LLC31 F.4th 6519th Cir. 2022Defense class-certification antitrust economist
AdmittedOlean Wholesale Grocery Cooperative v. Bumble Bee Foods LLC31 F.4th 6519th Cir. 2022Plaintiff common-impact economist
Exclusion reversedViamedia, Inc. v. Comcast Corp.No. 18-28527th Cir. 2020Exclusionary-conduct damages economist
AdmittedIn re Rail Freight Fuel Surcharge Antitrust Litigation (MDL No. 1869)934 F.3d 619D.C. Cir. 2019Plaintiff common-impact economist
ExcludedIn re Libor-Based Fin. Instruments Antitrust Litig.299 F. Supp. 3d 430S.D.N.Y. 2018Plaintiff common-impact economist
LimitedIn re Delta/AirTran Baggage Fee Antitrust Litigation245 F. Supp. 3d 1343N.D. Ga. 2017Defense cartel econometrician
LimitedIn re Digital Music Antitrust Litigation321 F.R.D. 64S.D.N.Y. 2017Indirect-purchaser pass-through economist
LimitedIn re Domestic Drywall Antitrust Litigation322 F.R.D. 188E.D. Pa. 2017Defense cartel econometrician
AdmittedIn re Rail Freight Fuel Surcharge Antitrust Litig.292 F. Supp. 3d 14D.D.C. 2017Defense class-certification antitrust economist
AdmittedInsight Equity v. Transitions Optical, Inc.252 F. Supp. 3d 382D. Del. 2017Exclusionary-conduct damages economist
AdmittedDial Corp. v. News Corp.165 F. Supp. 3d 25S.D.N.Y. 2016Market-definition economist

Other practice areas

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The library summarises public decisions for orientation; it is not legal advice. Read the opinion before relying on any ruling. No individual expert is named.