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A bootstrap test for instrument validity in heterogeneous treatment effect models

Kitagawa, Toru - 2013

This paper develops a specification test for the instrument validity conditions in the heterogeneous treatment effect model with a binary treatment and a discrete instrument. A necessary testable implication for the joint restriction of instrument exogeneity and instrument monotonicity is given...

Persistent link: https://www.econbiz.de/10010190476

A test for instrument validity

Kitagawa, Toru - 2014 - This draft: August, 2014

This paper develops a specification test for instrument validity in the heterogeneous treatment effect model with a binary treatment and a discrete instrument. The strongest testable implication for instrument validity is given by the condition for nonnegativity of point-identifiable complier's...

Persistent link: https://www.econbiz.de/10010392075

Nonparametric regression on latent covariates with an application to semiparametric GARCH-in-Mean models

Conrad, Christian; Mammen, Enno - 2008

We consider time series models in which the conditional mean of the response variable given the past depends on latent covariates. We assume that the covariates can be estimated consistently and use an iterative nonparametric kernel smoothing procedure for estimating the conditional mean...

Persistent link: https://www.econbiz.de/10003747376

A joint specification test for response probabilities in unordered multinomial choice models

Iwasawa, Masamune - In: Econometrics : open access journal 3 (2015) 3, pp. 667-697

Estimation results obtained by parametric models may be seriously misleading when the model is misspecified or poorly approximates the true model. This study proposes a test that jointly tests the specifications of multiple response probabilities in unordered multinomial choice models. The test...

Persistent link: https://www.econbiz.de/10011410669

Layered policy analysis program evaluation using the marginal treatment effect

Mourifié, Ismael; Wan, Yuanyuan - 2021 - This version: Sunday 4th April, 2021

This paper proposes a unified approach to derive sharp bounds on all conventional policy parameters when the instrumental variables (IVs) are potentially invalid. Using a Vine Copula approach, we propose a novel characterization of the identified sets for the marginal treatment effect (MTE) and...

Persistent link: https://www.econbiz.de/10012508661

Robust inference in models identified via heteroskedasticity

Lewis, Daniel J. - 2018

Identification via heteroskedasticity exploits differences in variances across regimes to identify parameters in … parameter vector. I apply these tools to monetary policy shocks, identified using heteroskedasticity in high frequency data. I …

Persistent link: https://www.econbiz.de/10011952161

Robust tests for white noise and cross-correlation

Dalla, Violetta; Giraitis, Liudas; Phillips, Peter C. B. - 2020

tests to accommodate hidden dependence and non-stationarities involving heteroskedasticity, thereby uncoupling these tests … heteroskedasticity in the series. Related extensions are provided for testing cross-correlation at various lags in bivariate time series …

Persistent link: https://www.econbiz.de/10012243279

Diagnostic tests for homoskedasticity in spatial cross-sectional or panel models

Baltagi, Badi H.; Pirotte, Alain; Yang, Zhenlin - 2020

We propose an Adjusted Quasi-Score (AQS) method for constructing tests for homoskedasticity in spatial econometric models. We first obtain an AQS function by adjusting the score-type function from the given model to achieve unbiasedness, and then develop an Outer-Product-of-Martingale-Difference...

Persistent link: https://www.econbiz.de/10012305035

Bootstrap performance with heteroskedasticity

Davidson, Russell; Monticini, Andrea - 2023

The aim of this paper is to illustrate more than one instance of poor bootstrap performance, and to see how available diagnostic techniques can indicate reliably when and how this poor performance can arise. Two particular features that seem to be important to explain bootstrap discrepancy are...

Persistent link: https://www.econbiz.de/10014440959

A new matrix statistic for the hausman endogeneity test under heteroskedasticity

Papadopoulos, Alecos - In: Econometrics : open access journal 11 (2023) 4, pp. 1-11

estimation, that incorporates heteroskedasticity in a natural way and does not use a generalized inverse. A Monte Carlo study … examines the performance of the statistic for different heteroskedasticity-robust variance estimators and different skedastic … empirical power, how one corrects for heteroskedasticity matters. We also compare its performance with that of the Wald …

Persistent link: https://www.econbiz.de/10014507912