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Prof. Christopher S. Yoo


University of Pennsylvania Law School

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

Christopher Yoo has emerged as one of the leading authorities on law and technology in the USA. His research focuses on how the principles of network engineering and the economics of imperfect competition can provide insights into the regulation of electronic communications. He has been a leading voice in the “network neutrality” debate that has dominated Internet policy over the past several years. He is also pursuing research on copyright theory as well as the history of presidential power. He is the author of The Dynamic Internet: How Technology, Users, and Businesses Are Transforming the Network (AEI Press, 2012), Networks in Telecommunications: Economics and Law (Cambridge Univ. Press, 2009) (with Daniel F. Spulber) and The Unitary Executive: Presidential Power from Washington to Bush (Yale Univ. Press, 2008) (with Steven G.  Calabresi). Yoo testifies frequently before US Congress, the Federal Communications Commission, and the Federal Trade Commission.

Module 7: Regulatory Law - Telecommunications

Introduction to the US Regulatory Law in Telecommunications

  • Antitrust
  • Communications Law
  • Intellectual Property
  • Mass Media Law
  • Government Regulation
  • Regulated Industries
  • Presidential Power
  • Separation of Powers
  • Law and Technology

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


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

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


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

The Bounds of Executive Discretion in the Regulatory State, 164 U. PA. L. REV. 1587 (2016) (with Cary Coglianese).

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

Modularity Theory and Internet Policy, 2016 U. ILL. L. REV. 1.

Moore's Law, Metcalfe's Law, and the Theory of Optimal Interoperability, 14 COLO. TECH. L.J. 87 (2015).

Cyber Espionage or Cyberwar?: International Law, Domestic Law, and Self-Protective Measures, in CYBERWAR: LETHICS FOR VIRTUAL CONFLICTS (Jens David Ohlin, Kevin Govern, & Claire Finkelstein eds., Oxford University Press 2015).

Wickard for the Internet? Network Neutrality After Verizon v. FCC, 66 FED. COMM. L.J. 415 (2014).

Technological Determinism and Its Discontents, 127 HARV. L. REV. 914 (2014) (book review).

Antitrust, the Internet, and the Economics of Networks, in OXFORD HANDBOOK OF INTERNATIONAL ANTITRUST ECONOMICS 380 (Roger D. Blair & D. Daniel Sokol eds., Oxford University Press 2014) (with Daniel F. Spulber).

The Impact of Codification on the Judicial Development of Copyright, in INTELLECTUAL PROPERTY AND THE COMMON LAW 177 (Shyamkrishna Balganesh ed., Cambridge University Press 2013).

The Wires Go to War: The U.S. Experiment with Government Ownership of the Telephone System During World War I, 91 TEX. L. REV. 983 (2013) (with Michael A. Janson).

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

Are Those Who Ignore History Doomed to Repeat It?, 78 U. CHI. L. REV. 1627 (2011) (book review) (with Peter Decherney & Nathan Ensmenger).

Nonrivalry and Price Discrimination in Copyright Economics, 157 U. PA. L. REV. 1801 (2009) (with John P. Conley).

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).

Beyond Network Neutrality, 19 HARV. J.L. & TECH. 1 (2005).

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

Vertical Integration and Media Regulation in the New Economy, 19 YALE J. ON REG. 171 (2002).

More publications can be found here.