This paper aims at quantifying the economic value of knowledge spillovers by exploring information contained in patent citations. We estimate a market valuation equation for semiconductor firms during the 1980s and 1990s, and find an average value in the amount of $0.6 to 1.2 million...

We develop a framework where to examine the implications of the introduction of a non-profit "public option" in the U.S. health insurance market. In this model, a continuum of heterogeneous consumers, each facing unknown medical expenditures, and differing in their expectations of such...

This paper aims at quantifying the economic value of knowledge spillovers by exploring information contained in patent citations. I estimate a market valuation equation for semiconductor firms during the 1980s and early 1990s, and find an average value in the amount of $0.6 to 1.2 million...

I examine the joint patent designation-renewal behavior of the EPO patent applicants during 1978 to 1996, using both nonparametric technique and a parametric model. The European patents through the EPO are substantially more valuable than patents through the national route. Value distributions...

This paper aims at quantifying the economic value of knowledge spillovers by exploring information contained in patent citations. We estimate a market valuation equation of the U.S. semiconductor firms during the 1980s and 1990s, and find an average value of $0.6 to 1.2 million "R&D-equivalent"...

Patent system in Europe has undergone significant changes during the 1970s around the establishment of the European Patent Office (EPO), and this paper tries to quantify the influence of such policy changes on the private value of European patents. Based on the patent renewal records, I estimate...

We develop a framework where to examine the implications of the introduction of a non- profit "public option" in the U.S. health insurance market. In this model, a continuum of heterogeneous consumers, each facing unknown medical expenditures, and differing in their expectations of such...

We develop and estimate a spatial game-theoretic model of entry and location choices to examine firms’ strategic clustering decisions. The model identifies two contradictory effects that determine firms’ geographical location choices: a competition effect and a clustering effect. We also...