This paper examines the prevalence and the determinants of informal entrepreneurial investment activity (i.e. the 3 FFFs –friends, fools and family– and business angels), using a data set of more than 175,000 individuals – including some 4000 informal investors – in a large number of...

Despite the fact that the main contribution of entrepreneurship theory to economics has been to provide an account of the performance of markets in disequilibrium, little empirical research on entrepreneurship has examined firm entry and exit in this context. In this paper, we attempt to redress...

The recent work of Kim and Mauborgne (2005a) has sought to turn strategic management on its head. They note that the field has been dominated by Porter’s (1980, 1985) competitive strategy and it has placed too much emphasis on the importance of competition and rivalry. By contrast they argue...

The spatial dependence of the exact one electron propagator for an interacting 2D electron gas in a magnetic field is shown to be the same as for a non-interacting gas. This happens whenever the translational symmetry is unbroken in the ground state. The result may be extended to a more general...

Using decomposition analysis, the paper investigates the reasons why Northern England has less but higher performing self-employed businesses than the South. It finds the causes are mainly structural differences rather than due to regional variation in people's characteristics. The paper also...