Carl Menger
When Carl Menger, Eugen von Böhm-Bawerk and Wieser began their careers in science, they were not focused on economic policy issues, much less in the rejection of intervention promoted by classical liberalism. Their common vocation was to develop an economic theory on a firm basis. To do this, following the course initiated by Carl Menger, Wieser, along with his friend and brother-in-law Eugen von Böhm-Bawerk, disapproved of the policies of interventionism that the Austrian government, as all governments of the time, had adopted, arguing that only the free market could allow more efficient economic and social development.