Articles and Book Chapters

Property Lost in Translation, 80 U. CHI. L. REV. 514 (with Abraham Bell) (forthcoming 2013)

Quasi-Patents and Semi-Patents in Biobanking, in COMPARATIVE ISSUES IN THE GOVERNANCE OF RESEARCH BIOBANKS: PROPERTY, PRIVACY, INTELLECTUAL PROPERTY, AND THE ROLE OF TECHNOLOGY 251 (Giovanni Pascuzzi, et al. eds., Springer Verlag 2013).

Cities, Property, and Positive Externalities, 54 WM. & MARY L. REV. 211 (2012) (with Peter Siegelman).

The Case for Imperfect Enforcement of Property Rights, 160 U. PA. L. REV. 1927 (2012) (with Abraham Bell).

The Relational Contingency of Rights, 98 VA. L. REV. 1313 (2012) (with Alex Stein).

Torts and Innovation, in LAW AND ECONOMICS OF INNOVATION 761 (Eli M. Salzberger ed., Elgar: 2012). (with Alex Stern)

The Best Available Technology Standard, 112 COLUM. L. REV. 1194 (2011) (with Lital Helman).

Partial Patents, 111 COLUM. L. REV. 207 (2011) (with Michael Mattioli).

The Distortionary Effect of Evidence on Primary Behavior, 124 HARV. L. REV. 518 (2010) (with Alex Stein).

Beyond Fair Use, 96 CORNELL L. REV. 91 (2010) (with Phil Weiser).

The Hidden Function of Takings Compensation, 96 VA.L. REV. 1673 (2010) (with Abraham Bell).

Reconceptualizing Trespass, 103 NW. U. L. REV. 1823 (2009) (with Alex Stein).

Originality, 95 VA. L. REV. 1505 (2009) (with Alex Stein).

Bribes v. Bombs: A Study in Coasean Warfare, 29 INT'L REV. L. & ECON. 179 (2009) (with Peter Siegelman).

Law and the Boundaries of Technology-Intensive Firms, 157 U. PA. L. REV. 1649 (2009) (with Oren Bar-Gill).

The Evolution of Private and Open Access Property, 10:1 THEORETICAL INQUIRIES IN LAW Article 4 (2009) (with Abraham Bell).

Torts and Innovation, 107 MICH. L. REV. (2008) (with Alex Stein).

Reconfiguring Property in Three Dimensions, 75 U. CHI. L. REV. (2008) (with Abraham Bell).

Tradable Patent Rights, 60 STAN. L. REV. 863 (2007) (with Ian Ayres).

Of Equal Wrong and Half Rights, 82 N.Y.U. L. REV. 738 (2007) (with Peter Siegelman & Steve Thel).

Fair Use Harbors, 93 VA. L. REV. 1483 (2007) (with Kevin Goldman).

Taking Compensation Private, 59 STAN. L. REV. 871 (2007) (with Abraham Bell).

The Uselessness of Public Use, 106 COLUM. L. REV. 1412 (2006) (with Abraham Bell).

A Marketplace for Ideas?, 84 TEXAS L. REV. 395 (2006) (with Oren Bar Gill).

A Theory of Property, 90 CORNELL L. REV. 531 (2005) (with Abraham Bell).

More publications can be found here.

Working Papers

The Environmental Option, U of Penn, Inst for Law & Econ Research Paper No. 13-12, Centre for Research on Environmentally friendly Energy Working Paper 3/2013 (with Endre Stavang)
[View Document]

Intellectual Property Defenses, COLUM. L. REV. (forthcoming 2013), U of Penn, Inst for Law & Econ Research Paper No. 13-11 (with Alex Stein)
[View Document]

The Role of Unfair Competition in the Common Law, in INTELLECTUAL PROPERTY AND THE COMMON LAW (Shyam Balganesh ed., forthcoming 2012) (with Shyam Balganesh). (forthcoming 2012)

Research Areas

• Intellectual Property
• Property Law
• Law and Economics

Positions

Penn Law - Robert G. Fuller, Jr. Professor of Law (2011- ); Professor (2004-11); Assistant Professor (2002-04)

Visiting Lecturer - Yale (2000 & 2002)

Fordham Law - Assistant Professor (1998-2002)

Courses

• Property Law
• Copyright Law
• Impact of the Internet on Copyright and Patent Law