Secular stagnation: The history of a macroeconomic heresy

The paper presents a history of the concept of “secular stagnation”, from Alvin Hansen in the 1930s and 1940s to its recent revival by Larry Summers. We examine Hansen's ideas and those of young economists associated with him, notably Evsey Domar, Everett Hagen, Benjamin Higgins, Alan Sweezy, and Paul Samuelson, who were the economists who kept the doctrine alive in the 1950s and to whom Summers and others taking up the idea recently turned. Their ideas are contrasted with the theories of stagnation associated with Josef Steindl and Joseph Schumpeter. It is a label for a historical thesis about the American economy, which, initially seen as distinct from Keynes General Theory, came to be seen as a theoretical proposition based on Keynesian theory. It is argued that the idea of secular stagnation had a political dimension, connected to the New Deal and the Cold War and changing conceptions of economic maturity.