If only this were Keyne's most famous theory. I believe he (or the greater school of thought built around him) did argue that stimulus through discounted interest rates should be balanced in a timely fashion. But I have to look around the world and wonder which - if any - of our leaders is brave enough to do this? The long trend downwards in interest rates everywhere has not had the desired effect and there are a lot of negative side-effects. But on paper the CPI is kinda OK so it's not a problem, right?