Post‐Keynesian Public Budgeting & Finance: Assessing Contributions from Modern Monetary Theory

While Modern Monetary Theory (MMT) offers contributions that are worthy of serious consideration, some additional theory‐building and synthesis with existing theory may be in order to tie MMT into the established budgeting literature. MMT focuses primarily on monetarily sovereign governments. These are governments that face extremely “soft” budget constraints insofar as they: issue and regulate the value of their own currencies, possess central banks that function as the fiscal agents of their government treasuries, are able to issue sovereign debt denominated in their domestic currency, and operate in a system of freely‐floating currency exchange rates, with a minimum of currency and capital controls. National governments that are sovereign according to these criteria are able to make all debt service payments as they come due, virtually without regard to their level of outstanding debt; they cannot be forced to default against their will. They are also macroeconomically‐autonomous. It is the collective position of the symposium papers that these conditions describe, in precise terms, the fiscal position of the U.S. federal government. As such, the existence of an ultra‐soft U.S. government budget constraint is grounded in the extremely favorable conditions of money and credit that the federal government is subject to, and which in fact it has created and nurtured for itself since the Second World War. An important implication is that the federal level budgeting literature cannot ignore the macroeconomics and the administration of a sovereign currency regime, nor the monetary economics that ungirds it, without sustaining charges of unrealism.