This discussion paper resulted in a publication in <A href="http://link.springer.com/article/10.1007%2Fs11187-012-9436-x">'Small Business Economics'</A>, 2013, 41(2), 335-357.<P> Policy in developed countries is often based on the assumption that higher business ownership rates induce economic value. Recent microeconomic empirical evidence casts doubts on the validity of...</p></a>

Accepted for publication in the <I>Journal of Development Economics</I>.<P> This paper introduces the Small World model (Watts and Strogatz, Nature, 1998) into the theory of economic growth and investigates how increasing economic integration affects firm size and efficiency, norm enforcement, and...</p></i>

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>

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>