Studies in Econometric Method

alternative appear Appendix applied approximation assume assumptions asymptotic called causal Chapter coefficients column complete compute condition consider consistent constant contains corresponding covariance defined definition demand denote dependent derived determined discussion distribution disturbances economic effect efficiency elements endogenous equal errors estimates example exogenous variables expression fact follows function given Hence identifiability income independent introduced investment involved knowledge Koopmans least least-squares estimates likelihood function limit linear matrix maximization maximum-likelihood estimates means method necessary normal observations obtained parameters particular positive possible predetermined variables prediction present priori probability problem properties question random reduced form regarded relations relationship represents respect restrictions Rubin sample satisfied Section specific Statistical structural equations subset supply Suppose Table theorem theory tion true values variance vector y₁ zero