Allocation of operating or exceptional costs would follow risk assumption and how third parties would treat such costs. Thus in order to determine which associated enterprise should bear exceptional costs, it would be first necessary to accurately delineate the controlled transaction, which would indicate who has the responsibility for performing activities related to the relevant costs and who assumes risks related to these activities. For example, if a cost directly relates to a particular risk, then the party assuming that risk would typically bear the costs associated with that risk. Furthermore, the party initially incurring an exceptional cost may not be the party assuming risks associated to that cost at arm’s length, and consequently such costs may need to be passed on to parties that do assume such risks. Thus a thorough analysis should be performed before concluding whether all or part of the operating or exceptional costs should be allocated between related parties.