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Errors in Variables and Other Unobservables
Zvi Griliches
Abstract
This lecture surveys the history and recent resurgence of interest in models with errors in variables and substantive unobservable variables. Among several examples of such models, special attention is paid to a schooling-occupation-income achievement model in which identification and estimation are based on the variance-components structure (across families) of the unobserved individual ability variable.
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