Summary
Mathis Wagner is an expert in economic and statistical analysis, specializing in combining data-driven insights with a deep understanding of how markets interact and function. He is committed to delivering rigorous analyses that withstand scrutiny in litigation. He excels at communicating his findings in a clear, concise, and compelling narrative that his clients can rely on.
Mathis has served as both a testifying expert and lead consulting expert on numerous antitrust and consumer protection cases. He focuses on helping clients evaluate the merits of claims, quantify damages and civil penalties, and address class action issues in disputes involving monopolization, price fixing, and exclusionary practices such as noncompete agreements.
He applies his expertise across a broad range of industries, including technology, media, entertainment and sports, education, insurance, life sciences, and healthcare. His versatile knowledge allows him to tailor his approach to the unique dynamics of each sector, ensuring a comprehensive and impactful analysis for his clients.
Before joining Bates White, Mathis was a faculty member at Boston College, where he taught microeconomics and labor economics courses at both the undergraduate and graduate levels.
Education
PhD, Economics, University of Chicago
MA, Economics, University of Chicago
BA, Economics, University of Cambridge
SPOTLIGHT
Co-led the team supporting expert Doug Bernheim in Epic Games v. Google, Epic’s antitrust litigation related to Google’s app store practices. A jury returned a verdict in favor of Epic on all counts and all claims. Read more.
Practices
Selected Work
Selected Experience
Testifying experience and retentions
- Testifying expert on behalf of AIN in DaVita Inc. v. Associates in Nephrology (AIN) in their antitrust counterclaims (in a breach of contract case) concerning issues of market definition, market power, theory of harm, and competitive effects of the non-compete and non-solicitation clauses in employment agreements between the parties.
- Testifying expert on behalf of plaintiffs in A. A. et al. v. Nancy T. Buckner performed economic and statistical analysis related to certain aspects of the Alabama Department of Human Resources' administration of the foster care system, including over-institutionalization of children in intensive residential facilities.
- Retained to provide a damages expert report and testimony on behalf of a plaintiff seeking damages related to a contract dispute regarding the resale of medical equipment to government customers.
Monopolization/exclusionary conduct
- Served as a lead consulting expert on behalf of the NFL in the National Football League Sunday Ticket Antitrust Litigation. Supported testifying expert on theory of harm and the competitive effects of the alleged conduct.
- Served as lead consulting expert on behalf of Epic in Epic Games v. Google concerning the monopolization of app distribution on Android smartphones. Supported testifying expert on issues of market definition, market power, theory of harm, and competitive effects.
- Served as a lead consulting expert on behalf of Veeva in Veeva Systems Inc. v. IQVIA Inc., concerning the monopolization of data and data management software for pharmaceutical companies. Supported testifying expert on issues of market definition, market power, theory of harm, and competitive effects.
- On behalf of United Therapeutics and Smiths Medical in Sandoz Inc. and Raregen, LLC v. United Therapeutics Corporation and Smiths Medical ASD, Inc., provided consulting and expert support regarding issues of market definition, market power, competitive effects, and irreparable harm in connection with plaintiffs’ motion for a preliminary injunction to enjoin defendants from enforcing allegedly exclusionary contracts.
- On behalf of American Express in American Express Anti-Steering Rules Antitrust Litigation II, provided consulting and expert support. Analyzed Amex’s market power and the competitive effects of Amex’s agreements with merchants.
- On behalf of Apple in Apple Inc. v. Qualcomm Inc., provided consulting and expert support. Analyzed the extent of Qualcomm’s market power in modem chipsets, and the competitive effects of Qualcomm’s conduct.
Price fixing
- In Henry et al. v. Brown University et al., provided consulting and expert support on issues of competitive effects and estimating damages on behalf of defendants who are alleged to have conspired to limit financial aid to students.
- In In re Rail Freight Fuel Surcharge Antitrust Litigation, supported testifying expert in estimating damages on behalf of plaintiffs, who allege the four largest US-based Class I railroads conspired to increase the price of rail freight transportation services in the United States by imposing unreasonable fuel surcharges.
Civil penalties (consumer protection)
- On behalf of Plaintiff States, provided consulting and expert support in State of Texas et al. v. Google LLC, Case No. 4:20-cv-00957, in calculating deterrent penalties under the Texas Deceptive Trade Practice Act (DTPA) and other state statutes based on Google’s conduct related to its display advertising products.
- On behalf of the State of Texas, provided consulting and expert support in State of Texas v. Google LLC, Cause No. CV58999, Midland County, Texas, in calculating violations and deterrent penalties related to alleged violations of the Texas Capture or Use of Biometric Identifier Act and Deceptive Trade Practice Act.
Mergers
- On behalf of Willis Towers Watson (WTW), assisted at all stages of merger review in connection with the $30 billion proposed merger between Aon and WTW, including preliminary antitrust risk assessment, Hart-Scott-Rodino–related submissions, and responses to the DOJ's second request to multiple advocacy submissions and presentations to the DOJ and the Canadian Competition Bureau.
- Conducted analysis of the competitive effects of consolidation in Medicare Part D on premiums and supported DOJ’s expert in a Tunney Act proceeding concerning the proposed remedy of CVS’s proposed acquisition of Aetna.

