Ludwig von Mises (September 29, 1881 - October 10, 1973) was a notable economist and a major influence on the modern Libertarian movement. He was born in Austria-Hungary and subsequently taught at the University of Vienna in the years 1913 to 1934, while also serving as a principal economic adviser to the Austrian government.
Von Mises left Austria in 1934 due to the turmoil provoked by the Nazis rising to power; he first went to Geneva, and in 1940 to the United States, where he taught at New York University from 1945 to 1969. He is seen as one of the leaders of the Austrian school of economics - he wrote and lectured extensively on behalf of (classical) liberalism.
see also Economics