Rj. Gilbert et C. Shapiro, AN ECONOMIC-ANALYSIS OF UNILATERAL REFUSALS TO LICENSE INTELLECTUAL PROPERTY, Proceedings of the National Academy of Sciences of the United Statesof America, 93(23), 1996, pp. 12749-12755
The intellectual property laws in the United States provide the owners
of intellectual property with discretion to license the right to use
that property or to make or sell products that embody the intellectual
property, However, the antitrust laws constrain the use of property,
including intellectual property, by a firm with market power and may p
lace limitations on the licensing of intellectual property, This paper
focuses on one aspect of antitrust law, the so-called ''essential fac
ilities doctrine,'' which may impose a duty upon firms controlling an
''essential facility'' to make that facility available to their rivals
, In the intellectual property context, an obligation to make property
available is equivalent to a requirement for compulsory licensing. Co
mpulsory licensing may embrace the requirement that the owner of softw
are permit access to the underlying code so that others can develop co
mpatible application programs, Compulsory licensing may undermine ince
ntives for research and development by reducing the value of an innova
tion to the inventor. This paper shows that compulsory licensing also
may reduce economic efficiency in the short run by facilitating the en
try of inefficient producers and by promoting licensing arrangements t
hat result in higher prices.