Peter Boettke of George Mason University talks about "taming Leviathan." As Professor Boettke points out, to say that Leviathan represents a puzzle is a normative position, but the analytics of trying to fix that puzzle is a positive endeavor. The talk stems from an observation by James Buchanan: when engaging in any theory of public economics, a political philosophy underlies it, even if it is only implicit. The lecture was given on March 30, 2015. The Hayek Lecture Series is supported by the Thomas W. Smith Foundation.