2 papers
econ.EM2026
Representativeness and Efficiency in Overidentified IV
Chun Pang Chow, Hiroyuki Kasahara
Under heterogeneous treatment effects, the GMM weighting matrix in overidentified IV models dictates the estimand. We show that efficient GMM downeights high-variance instruments a…
econ.EM2026
Identification and Estimation of Production Function and Consumer Demand Function under Monopolistic Competition from Revenue Data
Chun Pang Chow, Hiroyuki Kasahara, Yoichi Sugita
We establish nonparametric identification of production functions, total factor productivity (TFP), price markups, and firms' output prices and quantities, as well as consumer dema…