We analyse tax competition between two countries of unequal size trying to attract a foreign-owned monopolist. When national governments have only a lump-sum profit tax (subsidy) at their disposal, but face exogenous and identical transport costs for imports, then both countries will be willing to offer a subsidy to the firm. At the same time, the firm prefers to locate in the larger market where it will be able to charge a higher producer price. In equilibrium the large country receives the investment and may even be able to charge a positive tax, if the difference in the sizes of the national markets is sufficiently great. The profit tax paid in equilibrium rises further if countries are given an additional instrument of either a tariff or a consumption tax.

In models of economic geography, plant-level scale economies and trade costs create incentives for spatial agglomeration of production into a manufacturing core and agricultural periphery, creating regional income differentials. We examine tax competition between national governments to influence the location of manufacturing activity. Labour is imperfectly mobile and governments impose redistributive taxes. Regional integration is modeled as either increased labour mobility or lower trade costs. We show that either type of integration may result in a decrease in the intensity of tax competition, and thus higher equilibrium taxes. Moreover, economic integration must increase taxes when the forces of agglomeration are the strongest.

The Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. Competition for Firms in an Oligopolistic