The yuan's acceptance among investors would also require the kind of reform China needs to wean its economy from its investment-heavy, export-oriented growth model.
It will point out - as I have pointed out on Newsnight, in my report from Lincoln last month - that there are pockets of success where industry has oriented itself to high-tech, export-led growth.
In an important step forward, countries with large surpluses and export-oriented countries agreed to take additional steps to support growth and boost demand in their own countries.