Tax coordination with different preferences for public goods: Conflict or harmony of interest?

The paper analyzes strategic commodity taxation in a model with trade in a single private good that is simultaneously imported by consumers of a high-tax country and exported by its producers. Conditions for the existence of a Nash equilibrium are given, and an asymmetry is introduced through different preferences for public goods. Two tax coordination measures are discussed—a minimum tax rate and a coordinated increase in the costs of cross-border shopping. It is shown that tax coordination generally benefits the high-tax country while the low-tax country will gain only if the intensity of tax competition is high in the initial equilibrium or if governments are pricesensitive toward the effective marginal costs of public good supply.