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There exists a useful framework for jointly implementing Durbin-Wu-Hausman exogeneity and Sargan-Hansen overidenti cation tests, as a single arti cial regression. This note sets out the framework for linear models and discusses its extension to non-linear models. It also provides an empirical...
Persistent link: https://www.econbiz.de/10012146374
There exists a useful framework for jointly implementing Durbin-Wu-Hausman exogeneity and Sargan-Hansen overidenti cation tests, as a single arti cial regression. This note sets out the framework for linear models and discusses its extension to non-linear models. It also provides an empirical...
Persistent link: https://www.econbiz.de/10012008229
In this article, we review quantile models with endogeneity. We focus on models that achieve identification through the … use of instrumental variables and discuss conditions under which partial and point identification are obtained. We discuss … the identification results of <xref ref-type="bibr" rid="B11">Chernozhukov & Hansen (2005). We illustrate the modeling …
Persistent link: https://www.econbiz.de/10011004689
. Conditioning on additional covariates, however, may be necessary for identification of these treatment effects. With conditional …
Persistent link: https://www.econbiz.de/10008828516
, distributed lags and vector autoregressions (VAR), quasi-experiments, and identification by heteroskedasticity (IH). Ultimately …
Persistent link: https://www.econbiz.de/10010856424
In absence of randomized controlled experiments, identification is often aimed via instrumental variable (IV … design credible identification strategies, aforemost finding candidates for valid instruments. We discuss prominent IV …
Persistent link: https://www.econbiz.de/10011962295
In absence of randomized controlled experiments, identification is often aimed via instrumental variable (IV … design credible identification strategies, aforemost finding candidates for valid instruments. We discuss prominent IV …
Persistent link: https://www.econbiz.de/10011972484
This paper investigates four topics. (1) It examines the different roles played by the propensity score (probability of selection) in matching, instrumental variable and control functions methods. (2) It contrasts the roles of exclusion restrictions in matching and selection models. (3) It...
Persistent link: https://www.econbiz.de/10010274216
This paper investigates four topics. (1) It examines the different roles played by the propensity score (probability of selection) in matching, instrumental variable and control functions methods. (2) It contrasts the roles of exclusion restrictions in matching and selection models. (3) It...
Persistent link: https://www.econbiz.de/10005703186
Control variables provide an important means of controlling for endogeneity in econometric models with nonseparable and/or multidimensional heterogeneity. We allow for discrete instruments, giving identi cation results under a variety of restrictions on the way the endogenous variable and the...
Persistent link: https://www.econbiz.de/10011901534