We have introduced the monetary factor not by necessity but by choice. Its advantages are obvious. Self-financed commodity units are not only interest free, but free also from dependence upon credit conditions. They are a step-desirable, it seems to us-in the direction of a goods economy as distinct from a money economy; but this step is taken without violence by merely identifying basic goods with money. It guarantees unfailing purchasing power where it is most needed-among the countless producers of raw commodities.

Chapter X, Commodity Unit Stabilization, p. 114 - World Commodities and World Currencies (1944)