This discussion paper led to a publication in the <A href="http://www.degruyter.com/view/j/rne.2011.10.2/rne.2011.10.2.1278/rne.2011.10.2.1278.xml">'Review of Network Economics'</A>, 2011, 10(2), 1-20.<P> In this paper we test the celebrated `Strength of weak ties' theory of Granovetter (1973). We test two hypotheses on the network structure in a data set of collaborating economists. While we find...</p></a>

This discussion paper resulted in a chapter in (L.P. Dana (Ed.)) <I>Handbook of Research on Ethnic Minority Entrepreneurship</I>, pp. 42-60, Edward Elgar Publishing, 2007.<P> Co-ethnic employment refers to the stylised fact of many labour markets that there is an over-representation of workers of the same...</p></i>

Finding proper policy instruments to promote productivity growth features prominently on the Lisbon agenda and is central in many national as well as European policy debates. In view of the increased mobility of high-skilled workers in Europe, ongoing globalization and increased interregional...

This paper highlights the ‘magic of diasporas’ − as a source of progress in a globalizing world − with special attention for migrant (or ethnic) entrepreneurship. The present study aims to identify and examine the critical critical success factors of migrant enterprises and their...

We investigate the manifold posed question: To what extent does investment in human and social capital, besides the effect of talent, enhance entrepreneurial performance? We distinguish between three different performance measures: survival, profits, and generated employment. On the basis of the...

We analyze the impact of adolescents' friendship relations in their final-year class of highschool on subsequent labor market success. Based on a typology of network positions we locateeach student within the social system of the school class as either: an isolate, a sycophant,a broker or a...