This paper develops an empirical model of the relationship between road traffic accidents and traffic flows. The analysis focuses on the accident externality, which is determined mainly by the difference between the marginal and average risks. The model is estimated using a new data-set which...

Immigration has once again become an important and contentious issue in the European Union. This paper, therefore, contributes to the debate by analysing different dimensions of the problem in the context of EU enlargement, using a consistent model of migration. This recognises that, within...