Hydraulic Keynesianism Lives
I believe it was Alan Coddington who coined the term “hydraulic Keynesianism” to describe the typical macroeconomics textbooks of the 1950s, “conceiving the economy at the aggregate level in terms of disembodied and homogeneous flows.” The term also has a great visual quality, bringing forth an image of the economy as a giant machine with pumps and tubes and dials and levers, carefully controlled by wise government planners.