The Interpretation of Instrumental Variables Estimators in Simultaneous Equations Models with an Application to the Demand for Fish
联立方程模型中工具变量估计量的解释：鱼类需求的应用
In markets where prices are determined by the intersection of supply and demand curves, standard identification results require the presence of instruments that shift one curve but not the other. These results are typically presented in the context of linear models with fixed coefficients and additive residuals. The first contribution of this paper is an investigation of the consequences of relaxing both the linearity and the additivity assumption for the interpretation of…