Even if some countries were willing to accept global formulary apportionment, there would be disagreements because each country may want to emphasize or include different factors in the formula based on the activities or factors that predominate in its jurisdiction. Each country would have a strong incentive to devise formulae or formula weights that would maximise that country’s own revenue. In addition, tax administrations would have to consider jointly how to address the potential for artificially shifting the production factors used in the formula (e.g. sales, capital) to low tax countries. There could be tax avoidance to the extent that the components of the relevant formula can be manipulated, e.g. by entering into unnecessary financial transactions, by the deliberate location of mobile assets, by requiring that particular companies within an MNE group maintain inventory levels in excess of what normally would be encountered in an uncontrolled company of that type, and so on.