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Estimation and inference for conditionally heteroscedastic models

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Title: Estimation and inference for conditionally heteroscedastic models
Author(s): Zhao, Quanshui
Doctoral Committee Chair(s): Portnoy, Stephen
Department / Program: Statistics
Discipline: Statistics
Degree Granting Institution: University of Illinois at Urbana-Champaign
Degree: Ph.D.
Genre: Dissertation
Subject(s): Statistics
Abstract: The ordinary least squares (OLS) method is known to be efficient for linear models when the errors are homogeneous with Gaussian distributions, but troublesome with heteroscedastic or non-Gaussian errors. For the latter nonstandard case, we use the weighted quantile regression (l$\sb1$) method, gaining both robustness and efficiency, with successful applications to interval forecasting of ARCH type time series models.Dynamically changing regression parameters are another discrepancy to the ordinary linear models. By using the recursive method, the dynamically evolving parameters can be estimated. Asymptotic properties are studied for paired comparison models (a chess rating system) and dynamic ARCH models.
Issue Date: 1995
Type: Text
Language: English
URI: http://hdl.handle.net/2142/21193
Rights Information: Copyright 1995 Zhao, Quanshui
Date Available in IDEALS: 2011-05-07
Identifier in Online Catalog: AAI9624549
OCLC Identifier: (UMI)AAI9624549
 

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