In his recent book Ill Fares the Land, a passionate defense of the democratic socialist ideal, the historian Tony Judt writes that Hayek would have been (justly) doomed to obscurity if not for the financial difficulty experienced by the welfare state, which was exploited by conservatives like Margaret Thatcher and Ronald Reagan.

Yes, if Hayek had been wrong about the viability of the welfare state, then his warnings would have had less resonance.

This line appears in a generally thoughtful treatment of how The Road to Serfdom has stayed in print for decades and become a bestseller in the past two years. The article by Jennifer Schuessler appeared in the New York Times Book Review last July, but has only just come to my attention.