Keynesian theories and models of economic growth of industrial society

Keynesianism is a macroeconomic trend that has developed as a reaction of economic theory to the global economic crisis of the 20-30s of the XX century. The emergence of the economic theory of J. Keynes is defined as the "Keynesian revolution." Within the framework of Keynesianism, the following main directions are distinguished: neo-Keynesianism, post-Neinianism of the new Keynesianism. The ideas of J. Keynes were further developed in the works of both representatives of "orthodox" Keynesianism and left-wing Keynesians.