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David Hoffman

Professor of Law

David Hoffman

Dave Hoffman’s scholarship uses observational and experimental data to explore individuals’ behavior relating to legal rules and practices. In contract law, Hoffman’s recent papers have investigated whether millennials have developed a distinctive set of views about promising which relate to their experiences with online commercial transactions, and how firms use form contracts as brands to better engage users with digital platforms. Continue reading…


  • Contracts
  • Behavioral Economics
  • Social Science and the Law
  • Corporate and Financial Law
  • Law and Economics
  • Legal Process and Dispute Resolution


CONTRACT AND RELATED OBLIGATION: THEORY, DOCTRINE, AND PRACTICE, (7th ed., West 2016) (with Robert S. Summers & Robert A. Hillman).
[Available Here]

Articles and Book Chapters

Coin-Operated Capitalism , 119 COLUM. L. REV. 591 (2019) (with Shaanan Cohney, Jeremy Sklaroff, & David A. Wishnick).

Relational Contracts of Adhesion, 85 U. CHI. L. REV. 1395 (2018).

Law and Psychology Grows Up, Goes Online, and Replicates, 15 J. EMPIRICAL LEG. STUD. 320 (2018) (with Krin Irvine & Tess Wilkinson-Ryan).

Contract Consideration and Behavior, 85 GEO. WASH. L. REV. 351 (2017) (with Zev J. Eigen).

From Promise to Form: How Contracting Online Changes Consumers, 91 N.Y.U. L. REV. 1595 (2016).

“Ideology” or “Situation Sense”? An Experimental Investigation of Motivated Reasoning and Professional Judgment, 164 U. PA. L. REV. 349 (2016) (with Dan M. Kahan et al.).

The Common Sense of Contract Formation, 67 STAN. L. REV. 1269 (2015) (with Tess Wilkinson-Ryan).

Whither Bespoke Procedure?, 2014 U. ILL. L. REV. 389 (2014).

Empirical Analysis of Data Breach Litigation, 11 J. EMPIRICAL LEG. STUD. 74 (2014) (with Sasha Romanosky & Alessandro Acquisti).

Building a Taxonomy of Litigation: Clusters of Causes of Action in Federal Complaints, 10 J. EMPIRICAL LEG. STUD. 253 (2013) (with Christina L. Boyd, Zoran Obradovic, & Kosta Ristovski).

Litigating Toward Settlement, 29 J. L. ECON. & ORG. 898 (2013) (with Christina L. Boyd).

The Psychology of Contract Precautions, 80 U. CHI. L. REV. 395 (2013) (with Tess Wilkinson-Ryan).

Instructing Juries on Noneconomic Contract Damages, 81 FORDHAM L. REV. 1221 (2012) (with Alexander S. Radus).

"They Saw a Protest": Cognitive Illiberalism and the Speech-Conduct Distinction, 64 STAN. L. REV. 851 (2012) (with Dan M. Kahan et al.).

A Core of Agreement, 77 U. CHI. L. REV. 1655 (2010) (with Donald Braman & Dan M. Kahan).

Disputing Limited Liability, 104 NW. U. L. REV. 853 (2010) (with Christina L. Boyd).

Breach is for Suckers, 63 VAND. L. REV. 1003 (2010) (with Tess Wilkinson-Ryan).

Some Realism About Punishment Naturalism, 77 U. CHI. L. REV. (2010) 1531 (with Donald Braman & Dan M. Kahan).

Wikitruth Through Wikiorder, 59 EMORY L. J. 151 (2009) (with Salil K. Mehra).

Whose Eyes are You Going to Believe? Scott v. Harris and the Perils of Cognitive Illiberalism, 122 HARV. L. REV. 859 (2009) (with Dan M. Kahan & Donald Braman).

Docketology, District Courts, and Doctrine, 85 WASH. U. L. REV. 681 (2007) (with Alan Izenman & Jeffrey Lidicker).

Self-Handicapping and Managers' Duty of Care, 42 WAKE FOREST L. REV. 803 (2007).

The Best Puffery Article Ever, 91 IOWA L. REV. 1395 (2006).

More publications can be found here.

Working Papers

Are There Really 'Plenty of Shapiros Out There'? A Comment on the Courage of Norma L. Shapiro (August 9, 2019), U of Penn Law School, Public Law Research Paper No. 19-31; edited volume of Essays on Notable American Judges (Kevin Peppers, ed., University of Virginia Press, Forthcoming). (forthcoming)
[View Document]

Hushing Contracts (February 6, 2019), U of Penn, Inst for Law & Econ Research Paper No. 19-08; WASH. U. L. REV. (forthcoming) (with Erik Lampmann). (forthcoming)
[View Document]

Research Areas

  • Contracts
  • Law and Psychology
  • Empirical Analysis of Law


  • Contracts
  • Advanced Topics in Contracts
  • Corporations

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