The IMF study that calls for this is by Reza Moghadam of the Strategy, Policy, and Review Department, “in collaboration with the Finance, Legal, Monetary and Capital Markets, Research and Statistics Departments, and consultation with the Area Departments.” In other words, this paper shouldn’t be ignored.
It’s a long-term plan, but the plan has the unmistakable stamp of Keynes: “A global currency, bancor, issued by a global central bank would be designed as a stable store of value that is not tied exclusively to the conditions of any particular economy…. The global central bank could serve as a lender of last resort, providing needed systemic liquidity in the event of adverse shocks and more automatically than at present.”
The term bancor comes from Keynes directly. He proposed this idea following World War II, but it was rejected mostly for nationalistic reasons. Instead we got a monetary system based on the dollar, which was in turn tied to gold. In other words, we got a phony gold standard that was destined to collapse as gold reserve imbalances became unsustainable, as they did by the late 1960s. What replaced it is our global paper money system of floating exchange rates.