This paper analyses whether strategic motives for patenting influence the characteristics ofcompanies’ patent portfolios. We use the number of citations and oppositions to representthese characteristics. The investigation is based on survey and patent data from German companies.We find clear...

The increasing commercialization of university discoveries has initiated acontroversy on the impacts for future scientific research. It has been argued that anincreasing orientation towards commercialization may have a negative impact onmore fundamental research efforts in science. Several...

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...

Using a new dataset encompassing more than 2,200 inventions made by Max Planck Societyresearchers from 1980 to 2004, we explore how licensee and technology characteristics affectthe licensing and commercialization of technologies from public research. We find noevidence that spin-offs and...

This paper seeks to understand the intriguing but only sparsely explored phenomenon of “leisure timeinvention,” where the main underlying idea for the new product or process occurs when the inventor isaway from the workplace. We add to previous research by focussing on the inventive...

Over the last few years, worldwide mergers and acquisitions (M&A) have increasedsharply both in terms of value and volume. This development has not only beendriven by corporate acquirers but also to an increasing extent by private equityinvestors. In this paper, we analyze differences in...

We consider the welfare effects of skilled worker emigration in a context where skilled labor plays a role in product design. We show such emigration can benefit the residents left behind, even when consumers tastes exhibit a form of home bias...

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,...

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...