For me, a key lesson is that Friedman’s influence was achieved mainly through the force of ideas, not by direct participation in the policy process. - Robert Barro

If we look beyond the issue of monetary nonneutrality, then we do find areas of macroeconomics that use rational expectations and in which important recent progress has been made.

I find it amazing now that my first economics class, taught by Alan Sweezy, used John Maynard Keynes’s General Theory of Income and Employment as the textbook. Although this book is one of the most influential works of the twentieth century, it makes a really lousy textbook. Moreover, since I now regard Keynes’s analysis as seriously flawed, it is surprising that I enjoyed the course so much. As a student, I appreciated the simple way that the Keynesian model explained the workings and failings of the overall economy. Especially appealing were the clever policy remedies, such as increased government spending and tax cuts, that Keynes recommended to combat unemployment. Too bad that I discovered later that the model was theoretically and empirically deficient!

My views are more akin to the nineteenth-century liberal philosophy espoused by Milton Friedman, especially in his Capitalism and Freedom. In that work, he proposed many policies that are harmonious with free markets and are receiving serious attention in the United States and other countries. This list includes school choice, the flat-rate income tax, rules for monetary stability, privatized social security, and the elimination of affirmative-action programs.