Modern Monetary Theory or Modern Money Theory (MMT) is a heterodox macroeconomic theory that describes currency as a public monopoly, and unemployment as evidence that a currency monopolist is overly restricting the supply of the financial assets needed to pay taxes and satisfy savings desires. MMT is an alternative to mainstream macroeconomic theory. It has been criticized by well known economists but is claimed by its proponents to be more effective in describing the global economy in the years following the Great Recession of 2007–2009 (Credit Crisis 2008). https://en.wikipedia.org/wiki/Modern_Monetary_Theory
aka "budget deficit is no problem"