Avigail Kifer



  • New York


Avigail Kifer applies her expertise in industrial organization economics and quantitative marketing to matters involving antitrust and competition, healthcare, merger review, and intellectual property. Dr. Kifer works with attorneys and experts on all phases of the litigation process, including deposition and trial. Her industry experience spans financial markets, internet advertising, technology, and life sciences. She has experience conducting statistical analysis of proprietary big data. W@Competition has recognized Dr. Kifer as an “up-and-coming” woman professional in the competition space.

Antitrust and competition

Dr. Kifer has assessed class certification, liability, and damages claims arising in a variety of competition matters. She has addressed issues involving bundling and tying, horizontal price fixing, vertical exclusionary practices, and attempted monopolization. In healthcare, she has analyzed relevant markets, and evaluated allegations of market power, competitive effects, and exclusionary conduct.

Technology and big data

Dr. Kifer has conducted statistical analyses and simulations on structured data, and content analyses of unstructured data. She consults and publishes on issues related to e-commerce, online advertising, and mobile apps.

Merger review

Dr. Kifer has consulted on multiple merger investigations, both on behalf of regulatory agencies and of merging parties. She has worked on transactions in several industries, notably agriculture, technology, insurance, manufacturing, and telecommunications. Dr. Kifer coauthored comments on the Draft Vertical Merger Guidelines released by the Department of Justice and the Federal Trade Commission in January 2020, submitted comments to the Multilateral Pharmaceutical Merger Task Force, and has spoken on panels discussing merger enforcement trends.

Dr. Kifer currently serves as a vice chair of the Technology Committee in the American Bar Association Section of Antitrust Law.


The Price of Free

Press Release

Cornerstone Research Promotes Ten Senior Staff to Principal


Sidibe et al. v. Sutter Health


Meta/Kustomer Merger

Press Release

Cornerstone Research Professional and Affiliated Expert Win 2022 Antitrust Writing Award

Press Release

2022 Antitrust Writing Awards


Free Can Make Cents


Federal Trade Commission v. 1-800 Contacts

  • “Fundamentals – Economics,” American Bar Association’s 71st Antitrust Spring Meeting, 29 March 2023
  • “Debate: The EU Are Right That New Regulatory Tools Are What’s Needed to Face the Power of Big Tech,” GCR Live: Women in Antitrust 2022, 9 November 2022
  • “Antitrust Merger Enforcement Trends and Developments: What’s New and What Lies Ahead,” The Knowledge Group, 28 October 2021
  • “The Notorious B.I.G. Tech Platforms,” American Bar Association Section of Antitrust Law, 6 October 2021
  • “National Why Antitrust—Economists,” American Bar Association Section of Antitrust Law and American Bar Association Membership, Diversity & Inclusion Committee, 20 May 2021
  • Women@ Initiative for “Up-And-Coming” Women Competition Professionals, 17 June 2019
  • “Legal Applications of Marketing Theory,” Harvard Law School, 3 May 2019