On estimating dynamic factor demands
指出许多关于相互关联要素需求的实证研究依赖于研究者任意选择的归一化规则，并展示了不同归一化对估计弹性的敏感性，提出了不依赖归一化的替代方法。
Abstract Many recent empirical studies on inter‐related factor demands involve factor demand functions whose arguments depend on the researcher's arbitrary normalization rule. This paper shows how sensitive the estimated elasticities are to the various normalizations that are possible. Alternatives that are not dependent on a normalization are suggested.