Most of the energy of political work is devoted to correcting the effects of mismanagement of government. - Milton Friedman

Analysis of the supply of money, and in particular of changes in the supply of money, is simple in principle but extremely complex in practice, both in our hypothetical world and in the current real world. Simple in principle, because the supply of money is whatever the monetary authorities make if, complex in practice, because the decisions of the monetary authorities depend on numerous factors.

(i) Social benefits. When we first started writing about higher education, we had a good deal of sympathy for the first justification. We no longer do. In the interim we have tried to induce the people who make this argument to be specific about the alleged social benefits. The answer is almost always simply bad economics. We are told that the nation benefits by having more highly skilled and trained people, that investment in providing such skills is essential for economic growth, that more trained people raise the productivity of the rest of us. These statements are correct. But none is a valid reason for subsidizing higher education. Each statement would be equally correct if made about physical capital (i.e., machines, factory buildings, etc.), yet hardly anyone would conclude that tax money should be used to subsidize the capital investment of General Motors or General Electric. If higher education improves the economic productivity of individuals, they can capture that improvement through higher earnings, so they have a private incentive to get the training. Adam Smith's invisible hand makes their private interest serve the social interest. It is against the social interest to change their private interest by subsidizing schooling. The extra students — those who will only go to college if it is subsidized — are precisely the ones who judge that the benefits they receive are less than the costs. Otherwise they would be willing to pay the costs themselves.

They had cliche answers but only to their self-created straw-men. To exaggerate only slightly, they had never talked to anyone who really believed, and had thought deeply about, views drastically different from their own. As a result, when they heard real arguments instead of caricatures, they had no answers, only amazement that such views could be expressed by someone who had the external characteristics of being a member of the intellectual community, and that such views could be defended with apparent cogency. Never have I been more impressed with the advice I once received: "You cannot be sure that you are right unless you understand the arguments against your views better than your opponents do."