innovation distinguishing between "dirty" (internal combustion engine) and "clean" (e.g. electric and hybrid) patents across 80 … tax-inclusive fuel prices. Furthermore, there is path dependence in the type of innovation both from aggregate spillovers … and from the firm's own innovation history. Using our model we simulate the increases in carbon taxes needed to allow …

Using patent data from the United States, Japan, and Germany, this paper examines both the innovation and diffusion of … environmental regulations. Moreover, any technology transfer that occurs appears to be indirect. Domestic innovation occurs even for … regulations later nonetheless purchase pollution abatement equipment from domestic firms. However, patent citation data from the U …

We revisit the effect of the “Eco-Patent Commons” (EcoPC) on the diffusion of patented environmentally friendly … patents covering 94 “green” inventions. Hall and Helmers (2013) suggested that the patents pledged to the commons had the … organizational issues. Our findings have implications for the effectiveness of patent commons in enabling the diffusion of patented …

No firm or sector of the global economy is untouched by innovation. In equilibrium, innovators will flock to (and … innovation will occur where) the returns to innovative capital are the highest. In this paper, we document a strong empirical … pattern in green patent production. Specifically, we find that oil, gas, and energy producing firms – firms with lower …

This paper examines the relation between ownership, corporate form, and innovation for a cross-section of private and …: while most innovating firms in the US are publicly traded conglomerates, a substantial fraction of innovation is … countries, where business groups tend to be concentrated in industries with a slower and more fundamental innovation cycle and …

encouragement of creation and innovation. Optimal policy depends on the quantitative strength of these two forces. We give a …

pharmaceuticals. We challenge this orthodox view and show, to the contrary, that the pace of innovation often is faster in a world …

standard measures of patent quality, we find that patents granted to firms involved in private equity transactions are more …-term performance. We investigate 495 transactions with a focus on one form of long-term activities, namely investments in innovation as …

Patent data have been widely used in research on technological innovation to characterize firms' locations as well as … based on patent class data, including Euclidean distance, correlation, and angle between firms' patent class distributions …. Alternatively, one could measure proximity using overlap in cited patents. We point out that measures of proximity based on small …