This paper examines to what extent recent empirical evidence can collectively and systematically substantiate the claim that entrepreneurship has important economic value. Hence, a systematic review is provided that answers the question: What is the contribution of entrepreneurs to the economy...

Based on new data, this paper studies invention disclosure, licensing, and firm formation activities of Max Planck Institute directors over the time period 1985-2004, and analyzes their effects on scientists' publication and citation records. The results are consistent with prior findings that...

This paper constructs a model where entrepreneurial innovations are sold into oligopolistic industries and where adverse selection problems between entrepreneurs, venture capitalists and incumbents are present. We first show that aggressive development of a basic innovation by better informed...

Au-delà de la diversité des PME se dégagent des besoins communs qui sollicitent en partie des réponses de politiques publiques : disposer de structures de facilitation pour améliorer le travail en réseau, mieux gérer la fonction financière et favoriser un accès plus aisé au conseil...

Stimulating innovation is one of the pressing policy challenges facing many countries in the world today. The paper analyses the external factors that Polish entrepreneurs find most detrimental to their innovative activity. A sample of 199 small and medium size enterprises (SMEs) in Poland were...

Immigrants are widely perceived as being highly entrepreneurial and important for economic growth and innovation. This is reflected in immigration policies and many developed countries have created special visas and entry requirements in an attempt to attract immigrant entrepreneurs. Not...

London is one of the world's major cities, and one of its most diverse. London's cultural diversity is widely seen as a social asset, but there is little hard evidence on its importance for the city's businesses. Theory and evidence suggest various links between urban cultural diversity and...

Wars create dramatic changes in incentives for entrepreneurship and innovation, which need to be understood if we are to gauge the more subtle costs and benefits of armed conflict. This study examines the effect of the American Civil War on patterns of patenting and on the returns to inventive...

In many countries entrepreneurship is promoted through tax reductions for small businesses and by various government support schemes. We analyze the effects of such policies to subsidize small businesses in a setting where both the risk-return characteristics of the selected innovation project...

This paper analyzes how companies of immigrant entrepreneurs in knowledgeintensive industries differ from companies of native entrepreneurs with respect to start-up characteristics, firm survival and innovative performance. I focus on immigrants from the 'recruitment countries' of south and...