It seems that other currencies have their own peculiarities; for example, when Russia sold oil to India for Indian rupees (to show that they don't want dirty American currency), they found out that you cannot transfer them outside of India or convert; you need to spend them locally.
I wonder can China use this to make Yuan a new world currency (we all buy Chinese things anyway) or they cannot do it or doing this is not beneficial to them?
I wonder can China use this to make Yuan a new world currency (we all buy Chinese things anyway) or they cannot do it or doing this is not beneficial to them?