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...

The paper examines the impact of economic integration on enterprise in a small open economy. The paper analyses large, small and total new company registrations in Ireland. It examines the impact of spill-overs from the United Kingdom labour market and product market on Irish firm formation. The...

This paper examines new record company formation by musicians. In particular, it addresses the decision by composers to release a record i.e. either to contract their music to record companies or to start their own company. In so doing, the research entails the collection and analysis of new...

The paper conducts a statistical analysis of the dynamics of new music (product differentiation innovation) in the record industry. In pursuing this goal the paper generates new data and analyses a previously unutilized data set. The paper finds that there is a strong correlation between new...

This paper uses National Child Development Study data for a large cohort of British individuals, to explore the influence of education, inheritance and other background characteristics on the propensity to become self-employed; and also on subsequent success, as measured by job and wealth...

The paper makes three contributions to the economics literature on entrepreneurship. We offer a new measure of entrepreneurship which accounts for variations in persistence in self-employment. We outline an econometric methodology to account for this approach and find that it is superior to...

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...

The paper addresses the issue of who pays for the cost of creating artistic works and other forrns of intellectual property. It examines the effect of current legal structure on regulatory performance in markets for intellectual property; specifically the effects of sequential and partial...

The fundamental contribution of the paper is to contest the view that greater market contestability has non-negative effects on market performance. In a model where employees pose a threat of potential entry, we demonstrate that a reduction in barriers to entry causes no fall in industry price...