The development of inventor networks is characterized by the addition of a significant number of new inventors, while a considerable number of incumbent inventors discontinue. We estimate the persistence of knowledge in regional inventor networks using alternative assumptions about knowledge...

We investigate the stability of cooperative relationships between inventors and consequences for the characteristics and patent productivity of the respective regional innovation systems (RIS). The empirical analysis is for nine German regions over a period of 15 years. We find a rather high...

This paper summarizes the role of entrepreneurship in the East German transformation process that followed the breakdown of the socialist regime and subsequent unification with West Germany. The main aim of this exercise is to derive conclusions and recommendations for a potential unification of...

We investigate the role of entrepreneurship culture and the historical knowledge base of a region on current levels of new business formation in innovative industries. The analysis is for German regions and covers the time period 1907-2014. We find a pronounced positive relationship between high...

New business formation plays an important role for economic development. Therefore, policy makers put emphasis on fostering start-up activity. Aims and scope of entrepreneurs can be just as heterogeneous as the structure of new ventures. The project "New business formation and the labor market...

The 40 years of socialist regime in East Germany were characterized by a massive anti-entrepreneurship policy. We investigate the reemergence of entrepreneurship in East Germany during its transformation to a market economy following the collapse of the East German state in 1989. It took about...

We investigate how initial conditions that existed in East Germany at the end of the socialist regime impact regional development during the turbulent shock transition to a market economic system. Our investigation spans a period of almost 30 years. Both the self-employment rate (an indication...

We investigate the reasons for the pronounced regional differences of new business formation after the transformation from a socialist planned system to a market economy in East Germany. Relatively high start-up rates are found in regions that had a well-qualified workforce and a relatively high...

The unification of the East and West German states in 1990 initiated the integration of two distinct innovation systems. In this process, the poorly functioning socialist system of East Germany adopted the formal institutions and organization of West Germany, a western-style market economy. We...