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...

We review and discuss research on the development of regional entrepreneurship over time. A particular focus is on the long-term persistence of regional levels of entrepreneurship, its explanation, and its meaning for economic development. What is the state of empirical research in this field,...

Green innovations aim to improve and reduce the environmental impact of economic activities. Thus far, research focus on the positive trajectories of green transition. Recent studies focus also on the speed of transition and on its effects on economic outcomes. Continuing in this direction we...

We analyze the spatial diffusion of knowledge in laser technology in West Germany from 1960, when this technology began, until 2005. Laser technology research has been nearly exclusively conducted in regions that are home to a university with a physics or electrical engineering department, an...

We analyze the spatial diffusion of knowledge in laser technology in West Germany from 1960, when this technology began, until 2005. Laser technology research has been nearly exclusively conducted in regions that are home to a university with a physics or electrical engineering department, an...

Recent empirical contributions emphasize the importance of (potential) market size for the development of new pharmaceuticals. At the same time many scholars point out the importance of of scientific advances for the industry's R&D activities. Against this background I analyze the relationship...

This paper investigates the relationship between job satisfaction and age for self-employed persons as compared to paid employees. While, on average, there are higher levels of job satisfaction in self-employment as compared to paid employment, we find that an individual's age is an important...

We propose an extension of the standard occupational choice model to analyze the life satisfaction of senior entrepreneurs as compared to paid employees and particularly retirees in Germany. The analysis identifies income and health status as main factors that shape the relationship between...

Recent empirical contributions emphasize the importance of (potential) market size for the development of new pharmaceuticals. At the same time many scholars point out the importance of of scientific advances for the industry's R&D activities. Against this background I analyze the relationship...

We investigate the persistence of levels of self-employment and new business formation in different time periods and under different framework conditions. The analysis shows that high levels of regional self-employment and new business formation tend to be persistent for periods as long as 80...