Handwaving on health care
There's a particular style of argument that some conservative economists use to dismiss calls for government intervention in markets: Step 1: Either assert or assume that free markets work best in general. Step 2: List the reasons why this particular market might be unusual. Step 3: Dismiss each reason with a combination of skeptical harumphing, handwaving, anecdotes, and/or informal evidence. Step 4: Conclude that this market should be free from government intervention. In a recent rebuttal to a Greg Mankiw column on health care policy, John Cochrane displays this argumentation style in near-perfect form. It is a master class in harrumphing conservative prior-stating, delivered in the ancient traditional style. Young grasshoppers, take note. Mankiw's article was basically a rundown of reasons that health care shouldn't be considered like a normal market. He covers externalities, adverse selection, incomplete information, unusually high idiosyncratic risk, and behavioral...