Econometrica

Journal Of The Econometric Society

An International Society for the Advancement of Economic
Theory in its Relation to Statistics and Mathematics

Edited by: Guido W. Imbens • Print ISSN: 0012-9682 • Online ISSN: 1468-0262

Econometrica: Apr, 1958, Volume 26, Issue 2

A Variance Formula for Marginal Productivity Estimates using the Cobb-Douglas Function

https://doi.org/0012-9682(195804)26:2<306:AVFFMP>2.0.CO;2-I
p. 306-313

H. O. Carter, H. O. Hartley

In this note we are concerned with a technical point concerning the Cobb-Douglasfunction fitted to productivity data. We derive a new variance formula for the estimated marginal productivity. This formula is based on assumptions which we consider to be more realistic than those underlying the variance formula in current use which may lead to sizeable errors in estimation.


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