We extend theory on private–collective innovation by studying the role of exclusion rights for technology in the competition between private–collective and other innovators. We argue that private–collective innovators both pledge their own and invest in orphan exclusion rights for...

We investigate how often replication studies are published in empirical economics and what types of journal articles are replicated. We find that between 1974 and 2014 0.1% of publications in the top 50 economics journals were replication studies. We consider the results of published formal...

We examine empirically the role of lending relationships in determining the collateral requirements, costs and availability of external funding. The data originate from a recently concluded survey of small and medium-sized German firms. In our descriptive analysis, we explore the borrowing...

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....

Diese Arbeit quantifiziert Verzerrungen, die sich bei der Verwendung von Daten aus der IAB-Beschäftigtenstatistik in Analysen von Betriebsgründungen und -schließungen ergeben können. Wir zeigen, daß bisherige Studien von Gründungs- und Schließungsdaten ausgegangen sind, die im Mittel...