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Persistent link: https://www.econbiz.de/10012299251
We consider estimation and inference in panel data models with additive unobserved individual specific heterogeneity in a high dimensional setting. The setting allows the number of time varying regressors to be larger than the sample size. To make informative estimation and inference feasible,...
Persistent link: https://www.econbiz.de/10010459263
We develop results for the use of LASSO and Post-LASSO methods to form first-stage predictions and estimate optimal instruments in linear instrumental variables (IV) models with many instruments, p, that apply even when p is much larger than the sample size, n. We rigorously develop asymptotic...
Persistent link: https://www.econbiz.de/10008695561
Persistent link: https://www.econbiz.de/10014537254
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 …
Persistent link: https://www.econbiz.de/10011950639
The instrumental variable quantile regression (IVQR) model (Chernozhukov and Hansen, 2005) is a popular tool for …-convexity of the IVQR GMM objective function. This paper shows that the IVQR estimation problem can be decomposed into a set of … conventional quantile regression sub-problems which are convex and can be solved efficiently. This reformulation leads to new …
Persistent link: https://www.econbiz.de/10012053040
High-dimensional linear models with endogenous variables play an increasingly important role in recent econometric literature. In this work we allow for models with many endogenous variables and many instrument variables to achieve identification. Because of the high-dimensionality in the second...
Persistent link: https://www.econbiz.de/10011775296
In this article, we review quantile models with endogeneity. We focus on models that achieve indentification through the use of instrumental variables and discuss conditions under which partial and point identification are obtained. We discuss key conditions, which include monotonicity and...
Persistent link: https://www.econbiz.de/10009747939
This paper introduces Stata commands [R] npivreg and [R] npivregcv, which implement nonparametric instrumental variable …
Persistent link: https://www.econbiz.de/10011758353
Persistent link: https://www.econbiz.de/10003396542