How to Use Economic Theory to Improve Estimators: Shrinking Toward Theoretical Restrictions
如何利用经济理论改进估计：向理论约束收缩
Abstract We propose to use economic theories to construct shrinkage estimators that perform well when the theories' empirical implications are approximately correct but perform no worse than unrestricted estimators when the theories' implications do not hold. We implement this construction in various settings, including labor demand and wage inequality, and estimation of consumer demand. We provide asymptotic and finite sample characterizations of the behavior of the…