Article dans une revue: Most European countries suffer from a structural weakness in employment and competitiveness. Can an optimal tax system reinforce European countries in this respect? In this paper, we show that fiscal competition can be a welfare improving second best solution if the labour wedge is sufficiently large. Indeed, a sufficiently large labour wedge calls for an expansion of the production set in both countries, thus increasing global opportunities. For a small labour wedge, this would not be the case, because the terms-of-trade externality would call for a fiscal policy that exacerbates a non-cooperative behaviour between countries. In a two-country world, we show that the symmetric Nash equilibrium can be Pareto-efficient, if employment subsidies are financed by a consumption tax. This is not the case when the former are financed by tariffs.