Few economists manage to produce a body of work that boasts a serious following twenty years after their deaths. Murray N. Rothbard is a rare exception. More than two decades since his passing, his influence lives on, both in the work of a new generation of social scientists, and among a growing number of the general public. One reason for Rothbard's continuing popularity is his ability to reach across disciplines, and to connect them: unlike many contemporary economists, who specialize in increasingly narrow fields within the science, Rothbard's research agenda was expansive and...