Showing 1 - 10 of 121
The usual t test, the t test based on heteroskedasticity and autocorrelation consistent (HAC) covariance matrix estimators, and the heteroskedasticity and autocorrelation robust (HAR) test are three statistics that are widely used in applied econometric work. The use of these significance tests...
Persistent link: https://www.econbiz.de/10012906697
In parametric models a sufficient condition for local identification is that the vector of moment conditions is differentiable at the true parameter with full rank derivative matrix. We show that additional conditions are often needed in nonlinear, nonparametric models to avoid nonlinearities...
Persistent link: https://www.econbiz.de/10013097986
In parametric models a sufficient condition for local identification is that the vector of moment conditions is differentiable at the true parameter with full rank derivative matrix. We show that there are corresponding sufficient conditions for nonparametric models. A nonparametric rank...
Persistent link: https://www.econbiz.de/10013126074
the null hypothesis and a sequence of Pitman local alternatives. We prove test consistency and propose a bootstrap …
Persistent link: https://www.econbiz.de/10014176065
This paper analyzes the properties of a class of estimators, tests, and confidence sets (CS's) when the parameters are not identified in parts of the parameter space. Specifically, we consider estimator criterion functions that are sample averages and are smooth functions of a parameter theta....
Persistent link: https://www.econbiz.de/10014176550
methods (i.e., the asymptotic distribution versus the bootstrap) have been proposed. In this paper, we compare these methods …
Persistent link: https://www.econbiz.de/10014179349
This paper studies robustness of bootstrap inference methods under moment conditions. In particular, we compare the … uniform weight and implied probability bootstraps by analyzing behaviors of the bootstrap quantiles when outliers take … arbitrarily large values, and derive the breakdown points for those bootstrap quantiles. The breakdown point properties …
Persistent link: https://www.econbiz.de/10014183251
This paper studies second-order properties of the empirical likelihood overidentifying restriction test to check the validity of moment condition models. We show that the empirical likelihood test is Bartlett correctable and suggest second-order refinement methods for the test based on the...
Persistent link: https://www.econbiz.de/10014183992
This paper proposes a simple, fairly general, test for global identification of unconditional moment restrictions implied from point-identified conditional moment restrictions. The test is based on the Hausdorff distance between an estimator that is consistent even under global identification...
Persistent link: https://www.econbiz.de/10014184251
In this paper, we propose an instrumental variable approach to constructing confidence sets (CS's) for the true parameter in models defined by conditional moment inequalities/equalities. We show that by properly choosing instrument functions, one can transform conditional moment...
Persistent link: https://www.econbiz.de/10014194189