Firms and governments spend billions of dollars on R&D every year. To increase social welfare, the results of R&D must be commercialized so that consumers can benefit from improved products and lower prices. One measure of R&D output is patents; however, most patent databases contain no...

We study the causal impact of invalidating marginally valid patents during post-grant opposition at the European Patent Office on affected inventors' subsequent patenting. We exploit exogenous variation in invalidation by leveraging the participation of a patent's original examiner in the...

We study the causal impact of invalidating marginally valid patents during post-grant opposition at the European Patent Office on affected inventors' subsequent patenting. We exploit exogenous variation in invalidation by leveraging the participation of a patent's original examiner in the...

What difference does government support of business R&D make to the rate of innovation? Addressing this important question has deep theoretical roots and broadening practical applications in OECD countries. The analysis of output additionality has been hampered by incomplete data combined with...

Firms often struggle with the successful commercialization of innovations, and there is a need for reliable predictors. Prior research suggests that intellectual property (IP) rights play a key role in the commercialization of innovations. However, to what extent can IP rights be used to predict...

Patent trolls appropriate profits from innovation solely by enforcing patents against infringers.They are often characterized as relying on low-quality patents, an assessment that, if correct,would imply that eradicating such patents would effectively terminate the troll business. Inthis paper,...

Technological change is often hypothesized as one of the main drivers of mergeractivities. This paper analyzes the role of technology in mergers and acquisitions(M&As) at the firm level. Based on a newly created data set that combines financialinformation and patent data for public limited...

The objective of this paper is to investigate the innovative performance of China’s NIS ininternational comparison and the capacity of China’s NIS in creating indigenous innovation.We provide insights drawing upon patent data and using patent families to determine the valueof the underlying...

We estimate the relative contribution of mobile scientists who leave academia for the privatesector on the subsequent innovative performance of the firms they join. We use data on thepopulation of Danish firms and their R&D workers for the period 1999-2004 and measureinnovation performance by...