Results 41 to 50 of about 6,156 (248)

SPECIFICATION TESTING IN NONPARAMETRIC INSTRUMENTAL QUANTILE REGRESSION [PDF]

open access: yesEconometric Theory, 2020
There are many environments in econometrics which require nonseparable modeling of a structural disturbance. In a nonseparable model with endogenous regressors, key conditions are validity of instrumental variables and monotonicity of the model in a scalar unobservable variable.
openaire   +4 more sources

Nonparametric circular quantile regression [PDF]

open access: yesJournal of Statistical Planning and Inference, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Di Marzio, Marco   +2 more
openaire   +4 more sources

Additive quantile mixed effects modelling with application to longitudinal CD4 count data

open access: yesScientific Reports, 2021
Quantile regression offers an invaluable tool to discern effects that would be missed by other conventional regression models, which are solely based on modeling conditional mean.
Ashenafi A. Yirga   +3 more
doaj   +1 more source

Asymmetric impacts of geopolitical risk on stock markets: A comparative analysis of the E7 and G7 equities during the Russian-Ukrainian conflict

open access: yesHeliyon, 2023
In a nonparametric quantile-on-quantile regression model, we analyze the asymmetric financial impact of the Russian-Ukrainian conflict-induced geopolitical risk (GPR) on the top-seven emerging (E7) and developed (G7) stock markets.
Ahmed Bossman, Mariya Gubareva
doaj   +1 more source

Quantile-dependent expressivity of plasma adiponectin concentrations may explain its sex-specific heritability, gene-environment interactions, and genotype-specific response to postprandial lipemia [PDF]

open access: yesPeerJ, 2020
Background “Quantile-dependent expressivity” occurs when the effect size of a genetic variant depends upon whether the phenotype (e.g. adiponectin) is high or low relative to its distribution.
Paul T. Williams
doaj   +2 more sources

Islamic securities (ṣukūk) and economic growth: New empirical investigation from Southeast Asia using non-parametric analysis of MCMC panel quantile regression [PDF]

open access: yesIslamic Economic Studies, 2022
Purpose – This paper aims to investigate empirically whether Islamic securities enhance economic growth in the Southeast Asian region based on the endogenous growth theory using the non-parametric analysis.
Mohammed Ayoub Ledhem   +1 more
doaj   +1 more source

Regression quantiles in nonparametric regression [PDF]

open access: yesJournal of Nonparametric Statistics, 1994
In a nonparametric setup involving stochastic regressors, regression quantiles relate to the so called conditional quantile functions. Various asymptotic properties of such conditional quantile processes are studied with due emphasis on the underlying design aspects.
openaire   +1 more source

Quantile-Dependent Expressivity of Serum Uric Acid Concentrations

open access: yesInternational Journal of Genomics, 2021
Objective. “Quantile-dependent expressivity” occurs when the effect size of a genetic variant depends upon whether the phenotype (e.g., serum uric acid) is high or low relative to its distribution.
Paul T. Williams
doaj   +1 more source

Asymptotic properties of nonparametric estimation and quantile regression in Bayesian structural equation models

open access: yesJournal of Multivariate Analysis, 2019
We study the asymptotic properties of nonparametric Bayesian structural equation models (SEMs). Under mild conditions, when adjusting nonparametric error distributions, the posteriors of Bayesian SEMs achieve the optimal convergence rate up to log n ...
Gwangsun Kim, Taeryon Choi
semanticscholar   +1 more source

Nonparametric Estimation using Regression Quantiles in a Regression Model [PDF]

open access: yesKorean Journal of Applied Statistics, 2012
One proposal is made to construct a nonparametric estimator of slope parameters in a regression model under symmetric error distributions. This estimator is based on the use of the idea of minimizing approximate variance of a proposed estimator using regression quantiles. This nonparametric estimator and some other L-estimators are studied and compared
Sang-Moon Han, Byoung-Cheol Jung
openaire   +1 more source

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