This is an interesting article, of which the conclusions include

> Global economic relations appear to be characterized by persistent imbalances and power relations rather than by self-correcting market mechanisms. To move toward a more inclusive and mutually beneficial trade and monetary system, structural reforms of the international monetary and exchange system are needed. These could involve:

> Pegged exchanged rates closer to purchasing power parities and/or a common currency

Now, an astute reader can probably figure out that such a global, common courtesy would have to be decentralised, limited, with proof of work attached to it etc.

I think we all can think of a suitable candidate that fulfills those criteria.

https://wid.world/news-article/unequal-exchange-and-north-south-relations/