This paper investigates the effect of the flows of immigrant workers on the French labour market from the mid-1970s to the mid-1990s. Using a system of equations for unemployment, labour-force participation, the real wage and the immigration rate, it is shown that, in the long run, both legal...

Using the Hotelling approach to product differentiation, this article derives the equilibrium product configurations and prices when two firms enter and sell in two interdependent markets separated by barriers to trade. It shows that product imitation and no trade as well as product...

This paper investigates the effects of reciprocal tariff reductions in a two-identical country model of product differentiation. It makes three points. First, the existing results about market structure effects of trade liberalization can easily be replicated from a one-dimensional...