Keynes proposed the Bancor system at Bretton Woods in 1944 to solve balance of payments issues and recycle trade surpluses. It would have worked like a central bank, giving each country a checking account to keep trade balances close to neutral. The world now faces major trade imbalances like debt in southern Europe and China's economic slowdown, showing the need for a new global mechanism to finance deficits. The Bancor system was rejected due to U.S. hegemony and desire to maintain surpluses. A modern version could help address issues like underdevelopment in Africa by utilizing foreign reserves held by institutions to lend for development.