Modern monetary theory seems to be just macroeconomic populism:
Macroeconomic populism is an approach to economics that emphasizes growth and income distribution and deemphasizes the risks of inflation and deficit finance, external constraints and the reaction of economic agents to aggressive non-market policies
In more detail:
Macroeconomic populism is a term coined by Rudi Dornbusch and Sebastian Edwards in a 1990 paper. The term refers to the policies by many Latin American administrations by which government spending and real wages increase in a non-sustainable way leading to inflation, then stagflation and ultimately an economic collapse that drops real wages to lower than they were before the populist period began. The paper cites as examples Salvador Allende in Chile (1970–1973), and Alan García first term in Peru (1985–1990). In 1991, Dornbusch and Edwards edited a book titled The Macroeconomics of Populism in Latin America which analyzed more cases like Argentina between 1973 and 1976, Mexico between 1970 and 1982, and Brazil.