Pleas for a level playing field, for instance in international trade, are often not well-founded. This is because it is not exactly clear what a 'level playing field' means. But even if it would be clear what the plea would imply, a level playing field is not always desirable from an economic...

This paper provides a survey of the economic literature on immigration. We first give an impression of immigration in the Netherlands in 1500-1960, followed by a discussion of the long term economic consequences of the mass migration preceding Word War I. We then discuss some literature which...