How do intellectual property rights influence academic science? We investigate the consequences of the introduction of software patents in the U.S. on the publications of university researchers in the field of computer science. Difference-in-difference estimations reveal that software scientists...

We examine how the ownership of intellectual property rights influences patenting of university-discovered inventions. In 2002, Germany transferred patent rights from faculty members to their universities. To identify the effect on the volume of patenting, we exploit the researcher-level...

We use an exogenous change in German Federal law to examine how entrepreneurial support and the ownership of patent rights influence academic entrepreneurship. In 2002, the German Federal Government enacted a major reform called Knowledge Creates Markets that set up new infrastructure to...

When firms are forced to publicly disclose financial information, credit rating agencies are supposed to improve their risk assessments. Theory predicts such an information quality effect but also an adverse reputational concerns effect because credit analysts may become increasingly concerned...

We follow the migration patterns of European inventors and find evidence of a novel emigration determinant: policy uncertainty. We find that policy uncertainty raises the rate of inventor emigration by a notable magnitude. With a one standard deviation in the policy uncertainty of the home...

The SearchEngine is an open source project providing an integrated framework for diverse matching activities, especially the linkage of large scale firm data by fuzzy criteria like company names and addresses. At its core, it utilizes an efficient candidate retrieval mechanism implementing a...

Die deutsche Wirtschaft hat die Ausgaben für Innovationen im Jahr 2021 deutlich um 4,7 Prozent auf 178,6 Milliarden Euro gesteigert. Damit wurde der Rückgang aus dem Jahr 2020 - damals sanken die Innovationsausgaben pandemiebedingt um 3,6 Prozent auf 170,5 Milliarden Euro - wettgemacht. Das...

Previous work suggests a general uncertainty surrounding the migration process acts as a barrier to outmigration. In this paper, we argue that this barrier is exacerbated when relative economic policy uncertainty is higher in the target country and mitigated when relatively higher in the origin...

Die Ausgaben der Wirtschaft für Innovationen sind im Jahr 2022 im Vergleich zum Vorjahr in Deutschland deutlich um 6,8 Prozent auf 190,7 Milliarden Euro angestiegen. Rückläufig sind allerdings andere zentrale Indikatoren für die Innovationskraft der Wirtschaft hier zu Lande - so zum Beispiel...

This paper discusses a tool for optimization of econometric models based on genetic algorithms. First, we briefly describe the concept of this optimization technique. Then, we explain the design of a specifically developed algorithm and apply it to a difficult econometric problem, the...