It would be better if such schemes could be agreed upon by all by G-20 countries, as was briefly the case in the coordinated stimulus of April 2009. If not, groups of countries should pursue them on their own.
如果G20能够在此类机制上达成一致，那就更好了，2009年4月的合作刺激就属于这一情形。如果达不到，那么国家集团可以追求各自自己的合作机制。