Suppose that the coefficients of an input-output matrix, A, are random variables but that we have ascertained their expected values, EA. What will be the relation of the Leontief inverse of EA, (I - EA)^-1, to the expected value of the inverse, E(I - A)^-1? Will one or the other be uniformly greater? We will show that if all coefficients of A are independent, then the expected value of the inverse is uniformly greater than or equal to the inverse of the expected value. If, on the other hand, the column and row sums of the coefficient matrix are fixed, and smaller than one, so that the variables are not independent, then, in the two-by-two case, the opposite is true of the off-diagonal elements.
MLA
Simonovits, A.. “A Note on the Underestimation and Overestimation of the Leontief Inverse.” Econometrica, vol. 43, .no 3, Econometric Society, 1975, pp. 493-498, https://www.jstor.org/stable/1914278
Chicago
Simonovits, A.. “A Note on the Underestimation and Overestimation of the Leontief Inverse.” Econometrica, 43, .no 3, (Econometric Society: 1975), 493-498. https://www.jstor.org/stable/1914278
APA
Simonovits, A. (1975). A Note on the Underestimation and Overestimation of the Leontief Inverse. Econometrica, 43(3), 493-498. https://www.jstor.org/stable/1914278
We are deeply saddened by the passing of Kate Ho, the John L. Weinberg Professor of Economics and Business Policy at Princeton University and a Fellow of the Econometric Society. Kate was a brilliant IO economist and scholar whose impact on the profession will resonate for many years to come.
By clicking the "Accept" button or continuing to browse our site, you agree to first-party and session-only cookies being stored on your device. Cookies are used to optimize your experience and anonymously analyze website performance and traffic.