This paper proposes a search strategy for photovoltaic patents which allows to distinguish the photovoltaic system into sub-trajectories. Identifying and analyzing sub-trajectories is of particular importance for understanding micro patterns of technological change. The proposed search strategy...

The emergence and evolution of a technology is intimately related to it's knowledge base. A knowledge base shows certain dynamics and evolves over time. Knowledge accumulation, especially the in-flow of knowledge from sources external to an industry, is crucial for the technology's knowledge...

Diese Dissertationsschrift untersucht die Prozesse der Entstehung neuen Wissens und des Wissensaustausches. Neues Wissen und die Übertragung in neue Technologien oder die Verbesserung von bestehenden ist ein wesentlicher Treiber wirtschaftlicher Entwicklung. Das bisherige Verständnis über...

The concept of Bridging Technologies (BTs) refers to technologies which are important for the regional knowledge base by connecting different fields and thereby enabling technological development. We provide analytical tools to identify BTs and study their evolution over time. We apply these...

A growing number of studies identify a generalized slowdown in labor productivity growth. The very existence of the slowdown ignited a series of academic debates suggesting that secular stagnation or "mismeasurement" problems are at the root of the observed trends. We posit that the composition...