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 an article in <I>Management Science</I>. Volume 59 issue 7, pages 1514-1528.<P> This paper reports on a field experiment conducted to estimate the impact of the share of women in business teams on their performance. Teams consisting of undergraduate students in business...</p></i>

The spatial activity patterns of firms in a multi-regional system are closely connected with the structure and evolution of regional labour markets. Based on an extensive data set (cross-section) on commuting flows in Germany, this paper aims to identify the relationship between entrepreneurial...

There is no robust empirical support for the effect of financial incentives on the decision to work in selfemploymentrather than as a wage earner. In the literature, this is seen as a puzzle. We offer a focus on theopportunity cost, i.e. the wages given up as an employee. Information on income...

This paper analyses the effect of risk attitudes of firm owners on profits among micro and small enterprises (MSEs) in Lagos, Nigeria. Higher risk perceptions are shown to have a significant positive effect on profits, whereas risk propensity has a negative or no effect. Education, age, being...

See also the publication in <I>Small Business Economics</I> (2013), 40(3), 651-670.<P> Job satisfaction of self-employed and paid-employed workers is analyzed using the European Community Household Panel for the EU-15 covering the years 1994-2001. We distinguish between two types of job satisfaction, i.e....</p></i>