This paper examines the impact of three patent damage regimes on licensing and competition between a patentee and imitator. We focus on product patents in a differentiated, duopoly setting. Neither per-unit royalties nor fixed fees under efficient licensing are unique in equilibrium. As a...

We use structural break analysis to estimate rates of patent validity and infringement in decisions on the merits in United States Courts over 1929-2006. We separately estimate these rates for District Court and Appeals Court decisions. We find multiple structural breaks in both validity and...

We identify the rate of off-label use of prescription drugs in the United States during 1993-2008 using Detection Controlled Estimation. We find the rate rises from 29.9% to 38.3% during this period. Off-label prescribing increases when there are fewer FDA-approved alternatives and a patient's...

This paper describes a data set built to analyze patent litigation in the United States during 1929-2006. The data include all patents in published district court and appellate court decisions in which validity and/or infringement are at issue. We collect numerous patent-specific variables and...

In Paragraph (iv) pharmaceutical cases, a patent-litigation decision often determines whether a brand-firm monopoly continues or generic entry occurs. Using unique patent litigation data and an event-study approach that accounts for probabilistic district court decisions and an appellate...

We analyze subscriber usage data from an Internet Service Provider that sells service using three-part tariff and unlimited plans. Subscribers facing three-part tariffs have lower average usage than subscribers on unlimited plans, and differences among heavy users explain nearly all the overall...

This paper studies the problem of partnership dissolution in the context of asymmetric information. Past work shows that the initial share allocation, interdependence of partners’ valuations, and asymmetric control all affect the possibility of efficient dissolution. In this paper, I show, in...

In a bilateral relationship where the supplier of an intermediate good has to make a relationship-specific investment but cannot write or enforce a complete contract, the standard hold-up problem of underinvestment arises. We show that this problem is aggravated when the buyer is located in a...

Past work has shown that asymmetric information and asymmetric ownership affect the possibility of efficient dissolution of partnerships. We show that \textit{control} is also a central determinant of the possibility of efficient implementation. We demonstrate this point by analyzing a benchmark...

We analyze technology investment and adoption by a product developer who faces uncertainty over whether any existing patent covers a new technology. If there is a patent, the (non-producing) patentee may choose to “lurk”—i.e., to strategically delay enforcement—hoping that the developer...