This paper assesses the performance effects of simultaneous engagement in R&D cooperation with different partners (competitors, clients, suppliers, and universities and research institutes). We test whether these different types of R&D cooperation are complements in improving productivity. The...

This paper revisits the two-equation model of Carree, van Stel, Thurik and Wennekers (2002) where deviations from the ‘equilibrium’ rate of business ownership play a central role determining both the growth of business ownership and that of economic development. Two extensions of the...

In the present paper we address the relationship between the extentof business ownership (self-employment) and economic development. We will focusupon three issues. First, how is the equilibrium rate of business ownershiprelated to the stage of economic development? Second, what is the speed...