This paper is a study of licensing in a patent thicket. In a patent thicket licensing allows firms to avoid hold-up. It will have different effects on firms' R&D incentives depending on whether firms license existing or future patents. Building on a model of a patent portfolio race, firms'...

Licensing in a patent thicket allows firms to either avoid or resolve hold-up. Firms’ R&D incentives depend on whether they license ex ante or ex post. We develop a model of a patent portfolio race, which allows for endogenous R&D efforts, to study firms’ choice between ex ante and ex post...

The paper defines, implements and compares two empirical tests of relevant markets. While the traditional SSNIP test compares an initial industry equilibrium to an out-of-equilibrium situation, the FERM test, our contribution, compares the same initial equilibrium to an other equilibrium...

Software security is a major concern for vendors, consumers, and regulators since attackers that exploit vulnerabilities can cause substantial damages. When vulnerabilities are discovered after the software has been sold to consumers, the firms face a dilemma. A policy of disclosing...

People with a self-control problem often seek relief through social interactions rather than binding commitments. Thus, in self-help groups like Alcoholics Anonymous, Narcotics Anonymous etc, members are said to achieve better personal outcomes by mainly sharing their experiences. In other...

The deregulation of the telecommunications industry has resulted in a variety of industry structures which have been created in the hope of increasing competition. One example is the licensing of cellular telephone services in the United States. In the face of scarce radio spectrum, the Federal...

Using a new data set of the telecommunications sector on privatization (1981-98 for 167 countries) and competition policies (1990-98 for roughly 50 countries), this Paper investigates the political economy determinants of privatization and liberalization in the telecommunications sector....

A few recent contributions have claimed that in high-tech industries—where innovation is often cumulative and products include many components which are protected by patents in the hands of many different patent holders—the cost of obtaining all necessary licenses is too high. Some have even...

This Paper analyses the incentives that operators have to invest in facilities with different levels of quality. A network of better quality is more expensive but may give an important edge to an operator when competing against a rival. We extend the framework of Armstrong-Laffont-Rey-Tirole by...

Payment card associations offer both debit and credit cards and, until recently, engaged in a tie-in on the merchant side through the so-called honour-all-cards (HAC) rule. The HAC rule came under attack on the grounds that the credit and debit card markets are separate markets and that the...