Instructor in economics, University of Missouri, 1916-1917, associate professor, 1919-1920. Assistant professor economics, Cornell Univercity, 1920-1923. Professor economics, University of Missouri, 1923-1930.
Professor of political economy, Yale, since 1930. Sterling professor political economy, Yale, since 1931. Fellow Pierson College Lecturer Geneva School of International Studies, 5 times, 1926-1935.
Statistician Council of National Defense, Washington, 1917-1918. Member Economic Committee League of Nations, 1933-1937. Special representative United States Treasury in China, Japan and India, 1934.
Born September 25, 1886