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Jonah B. Gelbach

Professor of Law

Jonah Gelbach

Jonah Gelbach's interests in law teaching and scholarship include civil procedure, evidence, statutory interpretation, law and economics, event study methodology, applied statistical methodology, and applied microeconomics. Continue reading…

Articles and Book Chapters

Rethinking Judicial Review of High Volume Agency Adjudication, 96 TEX. L. REV. 1097 (2018) (with David Marcus).

The Logic and Limits of Event Studies in Securities Fraud Litigation, 96 TEX. L. REV. 553 (2018) (with Jill E. Fisch & Jonathan Klick).

The Triangle of Law and the Role of Evidence in Class Action Litigation, 165 U. PA. L. REV. 1807 (2017).

Empirical Law and Economics, in OXFORD HANDBOOK OF LAW AND ECONOMICS (Francesco Parisi ed., Oxford 2017) (with Jonathan Klick).

The Law and Economics of Proportionality in Discovery, 50 GA. L. REV. 1093 (2016) (with Bruce H. Kobayashi).

Can Simple Mechanism Design Results Be Used to Implement the Proportionality Standard in Discovery?, 7172 J. INSTITUTIONAL & THEORETICAL ECON. 200 (2016).

Uncontrolled Experiments from the Laboratories of Democracy: Traditional Cash Welfare, Federalism, and Welfare Reform, in THE LAW AND ECONOMICS OF FEDERALISM (Jonathan Klick ed., Edward Elgar Publishing Ltd., 2016).

A STUDY OF SOCIAL SECURITY LITIGATION IN THE FEDERAL COURTS (Final Report to the Administrative Conference of the United States, July 28, 2016) (with David Marcus).

Material Facts in the Debate Over Twombly and Iqbal, 68 STAN. L. REV. 369 (2016)

Can We Learn Anything About Pleading Changes from Existing Data?, 44 INT'L REV. L. & ECON. 72 (2015).

Rethinking Summary Judgment Empirics: The Life of the Parties, 162 U. PA. L. REV. 1663 (2014).

Can the Dark Arts of the Dismal Science Shed Light on the Empirical Reality of Civil Procedure? 2 STAN. J. COMPLEX LITIG. 224 (2014).

Expert Mining and Required Disclosure, 81 U CHI. L. REV. 131 (2014).

Locking the Doors to Discovery? Assessing the Effects of Twombly and Iqbal on Access to Discovery, 121 YALE L. J. 2270 (2012).

Passive Discrimination: When Does It Make Sense to Pay Too Little?, 76 U. CHI. L. REV. 797 (2009) (with Jonathan Klick and Lesley Wexler).

More publications can be found here.

Working Papers

The Reduced Form of Litigation Models and the Plaintiff's Win Rate (Sept. 9, 2016), U of Penn, Inst for Law & Econ Research Paper No. 16-22. (forthcoming)
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Research Areas

  • Civil Procedure
  • Statutory Interpretation
  • Empirical Legal Studies
  • Law and Economics
  • Applied Microeconomics
  • Statistical Methodology


  • Civil Procedure
  • Theories of Statutory Interpretation

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