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Christopher S. Yoo

John H. Chestnut Professor of Law, Communication, and Computer & Information Science; Director, Center for Technology, Innovation & Competition

Christopher Yoo

Christopher Yoo has emerged as one of the nation’s leading authorities on law and technology. Recognized as one of the most cited scholars in administrative and regulatory law as well as intellectual property, his major research projects include studying innovative ways to connect more people to the Internet; using technological principles to inform how the law can promote optimal interoperability; protecting privacy and security for autonomous vehicles, medical devices, and the Internet’s routing architecture; comparing antitrust enforcement practices in China, Europe, and the U.S.; copyright theory; and network neutrality. Continue reading…


REGULATING THE CLOUD: POLICY FOR COMPUTING INFRASTRUCTURE (Christopher S. Yoo & Jean-Francois Blanchette eds., MIT Press 2015).
[Available Here]

[Available Here]

CRITICAL CONCEPTS IN INTELLECTUAL PROPERTY LAW: COPYRIGHT, 2 vols. (Christopher S. Yoo ed., Edward Elgar 2011).
[Available Here]

NETWORKS IN TELECOMMUNICATIONS: ECONOMICS AND LAW (Cambridge Univ. Press 2009) (with Daniel F. Spulber).
[Available Here]

[Available Here]

Articles and Book Chapters

The Post-Chicago Antitrust Revolution: A Retrospective, 168 U. PA. L. REV. 2145 (2020).

Regulation of Algorithmic Tools in the United States, 13 J. L. & ECON. REG. 7 (2020) (with Alicia Lai).

5G and Net Neutrality, in THE FUTURE OF THE INTERNET – INNOVATION, INTEGRATION AND SUSTAINABILITY (Guenter Knieps & Volcker Stocker eds., Nomos 2019) (with Jesse Lambert).

Product Differentiation, in 1 RESEARCH HANDBOOK ON THE ECONOMICS OF INTELLECTUAL PROPERTY LAW (Ben Depoorter & Peter Menell eds., Edward Elgar 2019).

Rethinking Copyright and Personhood, 2019 U. ILL. L. REV. 1039 (2019).

Procedural Fairness in Antitrust Enforcement: The U.S. Perspective, in ANTITRUST PROCEDURAL FAIRNESS 31 (D. Daniel Sokol & Andrew Guzman eds., Oxford University Press 2019) (with Hendrik M. Wendland).

Paul Baran, Network Theory, and the Past, Present, and Future of Internet, 17 COLO. TECH. L.J. 161 (2019).

James Wilson as the Architect of the American Presidency, 16 GEO. J.L. & PUB. POL'Y 51 (2019).

Common Carriage’s Domain, 34 YALE J. ON REG. 991 (2018).

Hipster Antitrust: New Bottles, Same Old W(h)ine?, CPI ANTITRUST CHRONICLE, April 2018.

Avoiding the Pitfalls of Net Uniformity: Zero Rating and Nondiscrimination, 50 REV. INDUS. ORG. 509 (2017).

An Unsung Success Story: A Forty-Year Retrospective on U.S. Communications Policy, 41 TELECOMM. POL'Y 891 (2017).

Presidential Signing Statements: A New Perspective, 164 U. PA. L. REV. 1801 (2016).

Protocol Layering and Internet Policy, 161 U. PA. L. REV. 1707 (2013).

Coase Revisited: Property Theory and Emerging Technologies, 160 U. PA. L. REV. 2189 (2012)

Product Life Cycle Theory and the Maturation of the Internet, 104 NW. U. L. REV. 641 (2010).

Mandating Access to Telecom and the Internet: The Hidden Side of Trinko, 106 COLUM. L. REV. 1822 (2007) (with Daniel F. Spulber).

Copyright and Public Good Economics: A Misunderstood Relation, 155 U. PA. L. REV. 635 (2007).

Network Neutrality and the Economics of Congestion, 94 GEO. L.J. 1847 (2006).

Copyright and Product Differentiation, 79 N.Y.U. L. REV. 212 (2004).

More publications can be found here.

Working Papers

Internet Connectivity Among Indigenous and Tribal Communities in North America - A Focus on Social and Educational Outcomes (January 5, 2021), U of Penn Law School, Public Law Research Paper No. 21-13 (with Muge Haseki & Leon Gwaka). (forthcoming)
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Privacy vs. Transparency: Handling Protected Materials in Agency Rulemaking (December 15, 2020), U of Penn Law School, Public Law Research Paper No. 20-48; IND. L. J. (forthcoming 2021) (with Kellen McCoy). (forthcoming)
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Due Process in Antitrust Enforcement: Normative and Comparative Perspectives, 94 S. CAL. L. REV. (forthcoming May 2021) (with Thomas Fetzer, Shan Jiang, & Yong Huang). (forthcoming 2021)
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Network Effects in Action (November 19, 2020), U of Penn, Inst for Law & Econ Research Paper No. 21-01; Global Antitrust Institute Report on the Digital Economy 5. (forthcoming)
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The Transformation of Transformative Use, 1 J.L. & INNOVATION (forthcoming 2019). (forthcoming)

Self-Actualization and the Need to Create as a Limit on Copyright, in COMPARATIVE ASPECTS OF LIMITATIONS AND EXCEPTIONS IN COPYRIGHT LAW (Shyamkrishna Balganesh, Wee Loon Ng-Loy, & Haochen Sun eds., Cambridge University Press forthcoming 2019). (forthcoming)
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U.S. vs. European Broadband Deployment: What Do the Data Say? (forthcoming)
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Research Areas

  • Cyberlaw/Internet Law
  • Telecommunications Law
  • Privacy
  • Antitrust
  • Copyright
  • Mass Media Law
  • Presidential Power
  • Economic Regulation


Penn Law - John H. Chestnut Professor of Law (2011- ); Founding Director, Center for Technology, Innovation and Competition (2007- ); Professor (2007-2011); Visiting Professor (2006)

School of Engineering and Applied Science, Department of Computer and Information Science, Penn - Professor (2010- )

Annenberg School for Communication, Penn - Professor (2007- )

Vanderbilt University - Professor of Law and Founding Director, Technology and Entertainment Law Program (2005-07); Associate Professor (2002-2005); Assistant Professor (1999-2002)

Law Clerk to the Hon. Anthony M. Kennedy, Supreme Court of the United States (1997-1998)

Law Clerk to the Hon. A. Raymond Randolph, United States Court of Appeals for the D.C. Circuit (1995-1996)

Professional Activities

Federal Communications Commission, Broadband Deployment Advisory Committee (2017–).

American Law Institute, Consultant and Board of Advisers, Restatement Third, Principles for a Data Economy (2018–present); Board of Advisers, Restatement Third, Information Privacy Principles (2012–2019);Member (elected 2011).

United Nations Internet Governance Forum, Co-Convener, Connecting and Enabling the Next Billions (2017–present); Co-Convener, Dynamic Coalition on Innovative Approaches to Connecting the Unconnected (2016–2018).

Testimony, House Committee on the Judiciary (2020, 2019, 2009, 2008); Senate Committee on the Judiciary (2014, 2006, 2005); House Committee on Energy and Commerce (2014); Senate Committee on Commerce, Science, and Transportation (2010); Federal Trade Commission (2019, 2007); U.S. Department of Justice Antitrust Division (2018); Federal Communications Commission (2014, 2010, 2008, 2006).

Consultant, Project on Protected Materials in Public Rulemaking Dockets, Administrative Conference of the United States (2019–present).


  • Internet Law
  • Privacy
  • Antitrust
  • Introduction to Intellectual Property
  • Telecommunications Law
  • Copyright Theory
  • Technology and Policy
  • Artificial Intelligence and the Law

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