A definitive defense of the methodological foundations of Austrian economics. Hans-Hermann Hoppe sets the praxeological view (economics as a purely deductive science) against positivism, while taking the critics of the Austrian approach head-on. Hoppe rests his argument on the Kantian idea of the "synthetic a priori" proposition, thereby expanding an aim of Mises's in the methodology section of Human Action. Hoppe is the Austrian School's most prominent methodologist, and here he is in top form. He combines a rigorous scientific explanation with fantastic passion and rhetoric. These lectures astonished students at the Mises University when they were first delivered. They were later turned into this monograph, which has been a staple of Austrian pedagogy ever since. The volume includes a preface by Llewellyn H. Rockwell, Jr.To search for Mises Institute titles, enter a keyword and LvMI (short for Ludwig von Mises Institute); e.g., Depression LvMI