If it doesn't work, why do countries follow Keynes's theory? One of the most interesting Keynes engagements was with FDR during the New Deal. I was caught up in this while researching a story on the Nova Scotian from a nearby village, Lauchlin Currie, "a selfless soul who came south to save the Republic," according to John Kenneth Galbraith in his best-seller Age of Uncertainty, Page 220.

Currie's role was to explain Keynes to FDR's whiz kids, including Galbraith. Currie later lost his US citizenship and went off to do development work in Columbia. I wasn't interested in Keynes but casually sleuthing whether Currie may have been the never-found Washington mole mentioned in the Penkovsky Papers. Galbraith told me Currie, also formerly on the Harvard faculty,was not a Communist.