Introduction, 460. — Birth registration introduced after 1850 but generally unsuccessful in the United States, 460. — Census and registration returns in New York, 465. — Birth registration in Indiana, 470. — Census and birth registration returns in Michigan, 472. — Conclusions, 482.

Nature of the problem, 309; of the data, 314. — Evidence as to geographical mobility of labor, 316. — Duration of unemployment: before first job, 324; time on first job, 329; time lost during period of survey, 329; unemployed at end of survey, 332: — Quality of jobs obtained, 334. — Change in annual income, 339. — The dismissal wage: purpose, 342; utilization, 343; adequacy, 345.

Journal Article Sombart's Die Drei Nationalökonomien Get access J. M. Clark J. M. Clark Columbia University Search for other works by this author on: Oxford Academic Google Scholar The Quarterly Journal of Economics, Volume 45, Issue 3, May 1931, Pages 517–521, https://doi.org/10.2307/1883902 Published: 01 May 1931