The maximum likelihood estimate of the structural form of the errors in variable model with an instrumental variable is shown to be the median of the least squares, the reverse least squares, and the instrumental variables estimates, if all three have the same sign.
MLA
Leamer, Edward E.. “Least-Squares versus Instrumental Variables Estimation in a Simple Errors in Variables Model.” Econometrica, vol. 46, .no 4, Econometric Society, 1978, pp. 961-968, https://www.jstor.org/stable/1909758
Chicago
Leamer, Edward E.. “Least-Squares versus Instrumental Variables Estimation in a Simple Errors in Variables Model.” Econometrica, 46, .no 4, (Econometric Society: 1978), 961-968. https://www.jstor.org/stable/1909758
APA
Leamer, E. E. (1978). Least-Squares versus Instrumental Variables Estimation in a Simple Errors in Variables Model. Econometrica, 46(4), 961-968. https://www.jstor.org/stable/1909758
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