1 son, Eric. Began career as teacher, Hobart College, 1915, Johns Hopkins, 1915-1916, 1917-1918. University of Michigan, 1916-1917. Member of faculty School for Social Research.
1919-1928; in charge research Amalgamated Clothing Workers of America 1920-1931. Professor economics, Columbia, 1931-1958, emeritus. Trustee Mutual Life Insurance Company of New York.
Director of the Clark Equipment Company. Chairman Interstate Commision on Unemployment Insurance Special agent United States Commision on Industrial Relations, 1914, Council National Defense, 1917. Chief of section on production, statistics.
War Industries Board, 1918. Attached to American Peace Mission, Paris, France, January-June 1919. Member of advisory committee United States Unemployment Conference, Washington.
1921; lecturer at Harvard, 1930. Research staff, National bureau of Economic Research. Chairman Labor Advisory Board N.R.A.
Member National Labor Board. Chairman Automobile Labor Board.
Associate editor Journal of America Statistical Association, 1920-1934. Author: The Boycott in American Trade Unions, 1916. Growth of American Trade Unions (1880-1923).
Planning and Control of Public Works, 1930. Ebb and Flow in American Trade Unions, 1936. Co-author: Business Cycles and Unemployment.
Recent Economic Changes. Recent Social Trends. The State in Society.