Sean Sullivan

University of Iowa College of Law

Associate Professor of Law

Melrose and Byington

Iowa City, IA 52242

United States

http://sean-p-sullivan.com

  • University of Iowa College of Law

SCHOLARLY PAPERS

22

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4,118

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13

Scholarly Papers (22)

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1.

The Logic of Market Definition

83 Antitrust Law Journal 293 (2020), U Iowa Legal Studies Research Paper No. 2018-14
Number of pages: 54 Posted: 14 Aug 2018 Last Revised: 15 Mar 2021
David Glasner and Sean Sullivan
Federal government agency and University of Iowa College of Law
Downloads 1,289 (32,018)
Citation 1

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antitrust, market definition, economics

2.

What Structural Presumption?: Reuniting Evidence and Economics on the Role of Market Concentration in Horizontal Merger Analysis

42 Journal of Corporation Law 403 (2016), U Iowa Legal Studies Research Paper No. 2018-05
Number of pages: 43 Posted: 28 Nov 2015 Last Revised: 16 Mar 2018
Sean Sullivan
University of Iowa College of Law
Downloads 287 (211,554)

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structural presumption, Philadelphia National Bank, Baker Hughes, antitrust, economics, evidence, law and economics

3.

Market Definition

Research Handbook on Abuse of Dominance and Monopolization (Pınar Akman, Konstantinos Stylianou, & Or Brook eds., Forthcoming), U Iowa Legal Studies Research Paper No. 2021-29
Number of pages: 27 Posted: 08 Jun 2021 Last Revised: 17 Sep 2021
Sean Sullivan
University of Iowa College of Law
Downloads 250 (243,957)
Citation 1

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market definition, relevant market, monopoly, monopolization, abuse of dominance, abuse of a dominant position

4.

A Likelihood Story: The Theory of Legal Fact-Finding

90 University of Colorado Law Review 1 (2019)
Number of pages: 66 Posted: 11 Sep 2016 Last Revised: 03 Feb 2019
Sean Sullivan
University of Iowa College of Law
Downloads 225 (269,128)
Citation 3

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fact-finding; burden of persuasion; likelihood; probability; evidence

5.

Modular Market Definition

55 UC Davis L. Rev. 1091 (2021), U Iowa Legal Studies Research Paper No. 2021-15
Number of pages: 58 Posted: 12 Jan 2021 Last Revised: 03 Jan 2022
Sean Sullivan
University of Iowa College of Law
Downloads 207 (291,119)

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market definition; relevant market

6.

The Decline of Coordinated Effects and How to Reverse It

76 Fla. L. Rev. 265 (2024), USC CLASS Research Paper No. 23-12, U Iowa Legal Studies Research Paper No. 2024-06
Number of pages: 56 Posted: 11 Apr 2023 Last Revised: 24 May 2024
D. Daniel Sokol and Sean Sullivan
USC Gould School of Law and University of Iowa College of Law
Downloads 205 (293,786)

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antitrust, competition law, coordinated effects, mergers

7.

Antitrust Time Travel: Entry & Potential Competition

85 Antitrust Law Journal 147 (2023), U Iowa Legal Studies Research Paper No. 2022-09
Number of pages: 48 Posted: 29 Apr 2022 Last Revised: 28 Mar 2023
Sean Sullivan and Henry Su
University of Iowa College of Law and Bradley Arant Rose & White LLP
Downloads 199 (301,893)

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entry, potential competition, time travel, economics, antitrust

8.

Anticompetitive Entrenchment

Kansas Law Review, Vol. 86, 2020
Number of pages: 32 Posted: 30 Jan 2020 Last Revised: 21 Jul 2020
Sean Sullivan
University of Iowa College of Law
Downloads 183 (325,869)
Citation 1

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entrenchment, antitrust, concentration, market power

9.

Insincere Evidence

105 Virginia Law Review 1115 (2019), U Iowa Legal Studies Research Paper No. 2019-05, Virginia Public Law and Legal Theory Research Paper No. 2019-18, Virginia Law and Economics Research Paper No. 2019-07
Number of pages: 61 Posted: 18 Mar 2019 Last Revised: 29 Oct 2019
Michael D. Gilbert and Sean Sullivan
University of Virginia School of Law and University of Iowa College of Law
Downloads 180 (330,787)

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insincere rule, burden of persuasion, deterrence, compliance

10.

Permutation Tests for Experimental Data

U Iowa Legal Studies Research Paper No. 2022-31, Experimental Economics
Number of pages: 38 Posted: 08 Nov 2021 Last Revised: 03 Apr 2023
Charles A. Holt and Sean Sullivan
University of Virginia - Department of Economics and University of Iowa College of Law
Downloads 170 (347,768)
Citation 2

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permutation test, randomization test, experimental economics, nonparametric

11.

Seven Myths of Market Definition

Sean P. Sullivan, Seven Myths of Market Definition, Antitrust Chronicle, April 2022., U Iowa Legal Studies Research Paper No. 2022-15
Number of pages: 9 Posted: 27 Apr 2022 Last Revised: 03 Jun 2022
Sean Sullivan
University of Iowa College of Law
Downloads 135 (420,112)

Abstract:

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antitrust, market definition, merger guidelines

12.

Powers, But How Much Power? Game Theory and the Nondelegation Principle

104 Virginia Law Review 1229 (2018)
Number of pages: 54 Posted: 25 Jan 2016 Last Revised: 21 Nov 2018
Sean Sullivan
University of Iowa College of Law
Downloads 134 (422,546)

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constitutional law, nondelegation, legislative, power, principal agent, game theory, law and economics

13.

Against Efforts to Simplify Antitrust

49 J. Corp. L. 419 (2024), U Iowa Legal Studies Research Paper No. 2023-03
Number of pages: 19 Posted: 29 Oct 2022 Last Revised: 05 Feb 2024
Sean Sullivan
University of Iowa College of Law
Downloads 113 (484,496)

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antitrust, vague, rule, standard, complex, complicated

14.

Why Wait to Settle? An Experimental Test of the Asymmetric Information Hypothesis

Journal of Law and Economics, Vol. 59, 2016
Number of pages: 29 Posted: 03 Feb 2014 Last Revised: 06 Mar 2018
Sean Sullivan
University of Iowa College of Law
Downloads 99 (529,165)
Citation 4

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15.

Coordinated Effects and the Half-Truth of the Lax Enforcement Narrative

Antitrust Chronicle | CPI Antitrust Chronicle® July 2023, U Iowa Legal Studies Research Paper No. 2023-27, USC CLASS Research Paper No. 24-2
Number of pages: 10 Posted: 29 Aug 2023 Last Revised: 19 Jan 2024
D. Daniel Sokol and Sean Sullivan
USC Gould School of Law and University of Iowa College of Law
Downloads 86 (578,119)

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coordinated effects, coordination, lax enforcement, merger enforcement

16.

Antitrust Amorphisms

CPI Antitrust Chronicle, November 2019, U Iowa Legal Studies Research Paper No. 2019-27
Number of pages: 9 Posted: 09 Dec 2019 Last Revised: 19 Dec 2019
Sean Sullivan
University of Iowa College of Law
Downloads 79 (607,776)

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consumer welfare, harm to competition, antitrust standards

17.

Lumps in Antitrust Law

U Iowa Legal Studies Research Paper No. 2019-20
Number of pages: 11 Posted: 22 Aug 2019 Last Revised: 24 Nov 2019
Sean Sullivan
University of Iowa College of Law
Downloads 76 (621,080)
Citation 1

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Antitrust, Concentration, Consumer Welfare, Efficiency

18.

Probative Inference from Phenomenal Coincidence: Demystifying the Doctrine of Chances

14 Law, Probability & Risk 27 (2015)
Number of pages: 43 Posted: 04 Feb 2014 Last Revised: 06 Mar 2018
Sean Sullivan
University of Iowa College of Law
Downloads 62 (689,494)

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19.

Empowering Market Regulation of Agricultural Animal Welfare through Product Labeling

Animal Law Review, Vol. 19, No. 2, 2013
Number of pages: 32 Posted: 11 Apr 2022
Sean Sullivan
University of Iowa College of Law
Downloads 42 (814,739)

Abstract:

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animal welfare, market regulation

20.

Challenges for Comparative Fact-Finding

International Journal of Evidence & Proof, Forthcoming
Number of pages: 11 Posted: 12 Oct 2018
Sean Sullivan
University of Iowa College of Law
Downloads 42 (814,739)

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Fact Finding, Burden of Persuasion, Comparative Inference

21.

Experimental Economics and the Law

Oxford Handbook of Law and Economics
Number of pages: 38 Posted: 20 Apr 2022
Sean Sullivan and Charles A. Holt
University of Iowa College of Law and University of Virginia - Department of Economics
Downloads 35 (869,755)

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experimental economics, law and economics

22.

The Evolution (and Devolution) of Market Structure Reasoning

The 2023 U.S. Merger Guidelines - A Review (Sean Sullivan ed., 2024), U Iowa Legal Studies Research Paper No. 2024-26
Number of pages: 25 Posted: 29 May 2024
Sean Sullivan
University of Iowa College of Law
Downloads 20 (1,014,233)

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merger guidelines, market structure, presumption