Recent empirical studies find that foreign direct investment (FDI) by a multinational firm is not associated with a reduction of the firm's domestic activities. As it is often argued, this finding may imply that a country should not tax the firm's foreign profit income since this reduces foreign...

Many federal tax systems employ formula apportionment to allocate the taxable profits of large businesses to the federal subunits, where the subunits' specific tax rates are then applied. The formulas - such as the one recently proposed by the EU Commission and the one agreed upon by the...