Kaido, Hiroaki; Wüthrich, Kaspar - 2018
The instrumental variable quantile regression (IVQR) model of Chernozhukov and Hansen (2005, 2006) is a flexible and …. Estimation, however, is computationally burdensome because the GMM objective function is non-smooth and non-convex. This paper … shows that the IVQR estimation problem can be decomposed into a set of conventional quantile regression sub-problems, which …