Chapter I paragraph 1.29

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Global formulary apportionment would have the effect of taxing an MNE group on a consolidated basis and therefore abandons the separate entity approach. As a consequence, global formulary apportionment cannot, as a practical matter, recognize important geographical differences, separate company efficiencies, and other factors specific to one company or sub-grouping within the MNE group that may legitimately play a role in determining the division of profits between enterprises in different tax jurisdictions. The arm’s length principle, in contrast, recognizes that an associated enterprise may be a separate profit or loss centre with individual characteristics and economically may be earning a profit even when the rest of the MNE group is incurring a loss. Global formulary apportionment does not have the flexibility to account properly for this possibility.