We develop a two-sector endogenous growth model with a dual labour market resulting from the presence of an effort extraction function in one sector. Effort of workers can be influenced by pay and monitoring. This results in an endogenous non-competitive wage differential between sectors and a...

This discussion paper has resulted in an article in 'Economica', 2002, 69(273), 21-40.

This paper aims to provide a conceptual and operational context for analysing regional inequalities. It does so by utilizing a ‘search & matching’ framework. The model, developed in this paper, maps the way in which individuals are distributed according to: 1) the abilities of individuals to...

Concentration of immigrants and its associated externalities have become an important topic in contemporary international migration research, both from a methodological as well as an empirical perspective. The purpose of this paper is twofold. First, it aims to provide an overview of that part...

We investigate experimentally the economic effects of wage taxation to finance unemployment benefits for a closed economy and an international economy. The main findings are the following. (i) There is clear evidence of a vicious circle in the dynamic interaction between the wage tax and...

This discussion paper led to an article in <I>Regional Studies</I> (2014). Volume 48, issue 4, pages 624-645.<P> Knowledge triggers regional growth. Evidence suggests that skilled labour force concentrates in islands of innovation, determining an advantage for innovative regions and a challenge for...</p></i>

We analyze a general search model with on-the-job search and sorting of heterogeneous workers into heterogeneous jobs. This model yields a simple relationshipbetween (i) the unemployment rate, (ii) the value of non-market time, and (iii) themax-mean wage differential. The latter measure of wage...

This paper enters the debate on the islands of innovation through the lens of the standard Lucas (1988) growth model. It begins with a review of the theoretical details of the model and of the ensuing main empirical results, which can be identified when estimating such model on a sample of 261...