look at the roughly 10 years from 2010 to present. gold has been constrained to a 6000-7000 range. or maybe we should say the yuan has been constrained to a 1/6000-1/7000 range. so a 14-16% range. given the quick convertibility of renminbi to gold via the hk market it means that commodity exporters can sell to china, get paid in renminbi and - if they don't want some chinese goods and are reluctant to hold chinese bonds- get a quick exit to eminently liquid payment in gold.

if you look at charts of the asian currencies i mentioned vs the renminbi there has been exactly same near-stability of exchange rates. [except for the indonesian rupiah for some reason.] it's not exactly bretton woods, but it's not the wild west either.