I think on the G-20, judgment is still out in a sense. It has obviously a very significant role, because it brings all the big players together, but whether it can effectively play the role has yet to be seen. The G-7, in my experience, actually didn't really do much. It basically mandated others to do things, like the OECD. That's what the G-20 is saying. They're saying “we want you to go further with your work on harmful tax practices”, or “we want you to set up this financial action task force at the OECD to cover money laundering”, or “we want to change some of the procedures with respect to foreign aid”, and so on and so forth.
You don't expect the G-7, nor do I expect the G-20, actually, to have a very active kind of secretariat like the OECD, which is kind of becoming a secretariat in a lot of these issues. So the actual mechanisms of getting it done should come from there, but the political will has to come from the G-20.