862. While the adoption of an internationally agreed definition and typology of SPEs assists compilers in their identification and promotes cross-country comparability, it is important to monitor the evolution of these entities given the changing nature of financing patterns of multinational enterprises (MNEs) and to update the definition and typology of SPEs if needed.
863. In addition to SPEs, MNEs also invest via their operational subsidiaries abroad. This Benchmark Definition proposes a method to identify funds passing through the enterprise from its other business based on the residency of the ultimate controlling parent (UCP). However, more research is needed. This research could focus on a few areas. First, the development of a decision tree to identify “near-SPEs”, which are entities that do not meet the definition of SPEs but that display SPE-like behaviours, such as serving as financial intermediators within the MNE group, would help compilers identify additional entities involved in pass-through activities. A second focus should be on methods to remove the ‘inflation’ in FDI statistics caused by pass-through funds. This includes the interpretation of the breakdown of outward positions by residency of the ultimate controlling parent as suggested in Chapter 8. Moreover, it could be interesting for an economy to know the magnitude of its outward investment that ultimately originates from resident ultimate investors or from non-resident ultimate investors.
864. Another possibility would be the development of the ‘ultimate directional principle’, which would net out all pass-through funding and enable the presentation of FDI statistics on an ultimate counterparty basis. The calculation of FDI according to the ultimate directional principle begins by determining the direction of control/influence (inward or outward) in the direct investment relationship, but this direction is determined based on the residency of the ultimate controlling parent of the immediate direct investor rather than on the residency of the immediate direct investor. It also applies to all direct investment relationships and not just to fellow enterprises.