I learned later that economic reasoning was not just mathematics and could be applied to a wide variety of social problems. Now, I think that no form… - Robert Barro

One troublesome aspect is the place of rational expectations macroeconomics in the often political debate over Keynesian economics. At least implicitly, many people feel that what's bad for the rational expectations viewpoint is good for the Keynesian one, and vice versa. But it is hard to see how the problems in using the rational expectations approach to explain monetary nonneutrality can alleviate the theoretical and empirical shortcomings of the Keynesian model.

One hypothesis about the delay for the award is that the prize committee realizes that recipients tend to shirk once they get the prize. This consideration was particularly important in Gary’s case because he had continued to exhibit high productivity. Thus, the drop in output caused by an early prize for Gary might have had severe adverse consequences for economic research.

Adam Smith is, of course, justly lauded for his advocacy of free markets and limited government. Particularly famous is his idea that each person’s pursuit of self-interest leads, as if by an invisible hand, to socially efficient outcomes.