The bottom line is that it is probably too early to assess which groups will continue to play a useful role, given uncertainty over a future world trade round, G20's unformed mandate, and the future directions of ASEAN+3.
We should, nonetheless, be critically watching developments among the regional groupings over the next two to three years with a view to making tough decisions when the time is right. Conclusion I have tried to make the case, here, that the rationale for regional groupings will not be to achieve macro policy co-ordination.