Further Measurements of Marginal Productivity
I. Earlier studies, 399. — Criticisms of these studies, 401. — Methods of meeting them, 402. — II. Assumptions underlying cross-section studies, 403. — The materials studied, 403. — III. The classical method, 406. — Frisch's method, 408. — Koopmans' method, 411. — IV. Values obtained for k and j, 414. — V. Analysis of averages per plant, 416. — VI. Probable flexibility and elasticity of the marginal productivity functions, 418. — VII. Analysis of labor's share, 419.