Came to the United States, 1902, naturalized citizen, 1920. Admitted to Colorado bar, 1911, but did not practice. Instructor in economics, University of Washington, 1915-1916.
Assistant professor economic theory and theory of statistics, University of California, 1916-1920. Economist National Bureau Economics Research, New York City, 1920-1938. National Securities and Research Corporation.
Lecturer New School for Social Research, 1921-1926. Director Central National Corporation.