This paper presents an empirical analysis of the determinants of patent litigation in Germany, based on information from suits filed during the period from 1993 to 1995 at two of the three most important district courts. A control group was formed by selecting a random sample from the population...

In the 1990s, patenting schemes changed in many respects: upcoming new technologies accelerated the shift from price competition towards competition based on technical inventions, a worldwide surge in patenting took place, and the ?patent thicket? arose as a consequence of strategic patenting....

In the context of increasing globalization of markets, merger and acquisition activities in the 1990s are said to be driven by reorganization processes with respect to concentration on firms? core competencies in order to increase or maintain market power in international markets. This paper...

In diesem Beitrag wird ein Oligopolmodell der Innovationsaktivität entwickelt und mit Daten aus dem Mannheimer Innovationspanel geschätzt. Das Modell erlaubt es, bei der empirischen Umsetzung auf die Verwendung von Marktanteilsdaten und Nachfrageelastizitäten zu verzichten, die typischerweise...

Through a survey, economic value estimates were obtained on 962 inventions made in the United States and Germany and on which German patent renewal fees were paid to full-term expiration in 1995. A search of subsequent U.S. and German patents yielded a count of citations to those patents....

We explore the tail of patented invention value distributions by using value estimates obtained directly from patent holders. The paper focuses on those full-term German patents of the application year 1977 which were held by West German and U.S. residents. The most valuable patents in our data...

Technological change is often hypothesized as one of the main drivers of merger activities. 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 financial information and patent data for public firms in...

The growing importance of technology relevant non-publication output of university research has come into the focus of policy-makers? interest. A fierce debate arose on possible negative consequences of the increasing commercialization of science, as it may come along with a reduction in...

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

This paper investigates the motive of pre-empting technology competition through mergers and acquisitions (M&A). Exploiting the patent application procedure at the European Patent Office we introduce a new measure for the possibility to create entry barriers in technology markets. Our results...