- The Immigration Problem
- The Industrial Code: A Survey of the Postwar Industrial Situation, a Review of Wartime Developments in Industrial Relations, and a Proposal Looking to Permanent Industrial Peace
- Studies of the Cost of Maintaining a Family at a Level of Health and Reasonable Comfort
- Political and Industrial Democracy
- The New Industrial Revolution and Wages: A Survey of the Radical Changes in American Theory and Practice Which Have Come in Since the World War and Created the Present Era of Prosperity





