Andrews taught economics at both the University of Wisconsin and Dartmouth College.
[citation needed] In 1906, he co-founded the American Association for Labor Legislation (AALL) with other economists.
[1] In 1911, he founded the American Labor Legislation Review with the purpose of recording advances in social reforms.
[citation needed] In 1921, Andrews was called by President Harding to serve on the Unemployment Conference.
He was a member of the secretariat to the League of Nations' first official International Labor Conference in Washington, D.C.[citation needed] Together with John R. Commons, he was the author of Principles of Labor Legislation (1916) and History of Labor in the United States (1918).