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- [12] Have Profits Kept Pace With the Cost of Living? ANNALS OF THE AMERICAN ACADEMY OF POLITICAL AND SOCIAL SCIENCE, 1920, 89 : 157 - 162
- [13] Have Wages Kept Pace with the Cost of Living? ANNALS OF THE AMERICAN ACADEMY OF POLITICAL AND SOCIAL SCIENCE, 1920, 89 : 135 - 147