John Kenneth Galbraith was a post-Keynesian and an institutionalist economist. He is famous for having built an unconventional vision of American Capitalism in his postwar trilogy (1952b, 1958, 1967). His socioeconomic analysis deals with subjects such as theory of the firm, managerial revolution, public spending, theory of consumption, price control (1952a), financial crises (1955), power relationship (1983), and more generally with the dynamic of capitalist institutions.