Jaerim Choi, Jiaying Gu, Shu Shen, Weak-instrument robust inference for two-sample instrumental variables regression, Journal of Applied Econometrics, Vol. 33, No. 1 (January/February 2018), pp.

This article derives a new family of estimators, namely the minimum density power divergence estimators, as a robust generalization of the maximum likelihood estimator for the polytomous logistic ...