A patent only protects an innovator from others producing the same product, but it does not protect him from others … within-patent competition, which results from production of the same product, and betweenpatent competition, which results … effects of intellectual property regulations on within -patent competition by showing how protecting innovative returns from …

. The purpose is to document the ways in which patent systems are products of battles over the economic surplus from …-style patent systems with all their imperfections have come to dominate other methods of encouraging inventive activity. The essays …

An unresolved question concerning post-Civil War U.S. industrialization is the degree to which import tariffs protected … domestic manufacturers from foreign competition. This paper considers the impact of import tariffs on the domestic pig iron … results suggest that, had the tariff been eliminated in 1869, domestic output would fall by about 15 percent and the import …

This paper examines intellectual property litigation as a method of protection from patent-infringing imports. Claims … against patent-infringing imports entering the United States may be filed before the International Trade Commission (ITC) or … in district court. The ITC applies injunctions (import prohibitions) that would seem to provide more protection from …

of the developing world introduces patent protection for new drug products. This may lead to more research on drugs to … those already offering such protection the situation offers a unique opportunity to examine the incentive role of patent … provides a baseline' against which future research activity can be compared once the new global patent regime is fully …

It may be advantageous to provide a variety of kinds of patent protection to heterogenous innovations. Innovations … protection in order to be encouraged. We model the problem of designing an optimal patent menu (scope and length) when the … fertility of an innovation in generating more innovations cannot be observed. The menu of patent scope can be implemented with …

Does an expansion of patent scope induce more innovative effort by firms? This article provides evidence on this … question by examining firm responses to the Japanese patent reforms of 1988. Interviews with practitioners suggest the reforms … significantly expanded the scope of patent rights in Japan, but that the average response in terms of additional R&D effort and …

We estimate the effect of patent protection on follow-on investments in corporate scientific research. We exploit a new … method for identifying an exogenous reduction in the protection a granted patent provides. Using data on public, research …-active firms between 1990 and 2015, we find that firms decrease follow-on research after a reduction in patent protection, as …