A regression test of semiparametric index model specifications

This paper presents a straightforward regression test of parametric and semiparametric index models against more general semiparametric and nonparametric alternative models. The test is based on the regression coefficient of the restricted model residuals on the fitted values of the more general mod...

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Main Authors: Rodriguez, Diego, Stoker, Thomas M.
Other Authors: Massachusetts Institute of Technology. Center for Energy and Environmental Policy Research.
Format: Working Paper
Published: MIT Center for Energy and Environmental Policy Research 2009
Online Access:http://hdl.handle.net/1721.1/50189
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author Rodriguez, Diego
Stoker, Thomas M.
author2 Massachusetts Institute of Technology. Center for Energy and Environmental Policy Research.
author_facet Massachusetts Institute of Technology. Center for Energy and Environmental Policy Research.
Rodriguez, Diego
Stoker, Thomas M.
author_sort Rodriguez, Diego
collection MIT
description This paper presents a straightforward regression test of parametric and semiparametric index models against more general semiparametric and nonparametric alternative models. The test is based on the regression coefficient of the restricted model residuals on the fitted values of the more general model. A goodness-of-fit interpretation is shown for the regression coefficient, and the test is based on the squared "t-statistic" of the coefficient estimate, where the variance of the coefficient has been adjusted for the use of nonparametric estimators. An asymptotic theory is given for the situation where kernel estimators are used to estimate unknown regression functions, and the variance adjustment terms are given for this case. The methods are applied to the empirical problem of characterizing environmental effects on housing prices in the Boston Housing data, where a partial index model is found to be preferable to a standard log-linear equation, yet not rejected against general nonparametric regression. Various issues in the asymptotic theory and other features of the test are discussed.
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spelling mit-1721.1/501892019-04-12T23:31:07Z A regression test of semiparametric index model specifications Rodriguez, Diego Stoker, Thomas M. Massachusetts Institute of Technology. Center for Energy and Environmental Policy Research. This paper presents a straightforward regression test of parametric and semiparametric index models against more general semiparametric and nonparametric alternative models. The test is based on the regression coefficient of the restricted model residuals on the fitted values of the more general model. A goodness-of-fit interpretation is shown for the regression coefficient, and the test is based on the squared "t-statistic" of the coefficient estimate, where the variance of the coefficient has been adjusted for the use of nonparametric estimators. An asymptotic theory is given for the situation where kernel estimators are used to estimate unknown regression functions, and the variance adjustment terms are given for this case. The methods are applied to the empirical problem of characterizing environmental effects on housing prices in the Boston Housing data, where a partial index model is found to be preferable to a standard log-linear equation, yet not rejected against general nonparametric regression. Various issues in the asymptotic theory and other features of the test are discussed. Funded by a grant from the MIT Center for Energy and Environmental Policy Research. 2009-12-15T23:58:27Z 2009-12-15T23:58:27Z 1993 Working Paper 93011 http://hdl.handle.net/1721.1/50189 35719553 MIT-CEEPR (Series) ; 93-011WP. 50 p application/pdf MIT Center for Energy and Environmental Policy Research
spellingShingle Rodriguez, Diego
Stoker, Thomas M.
A regression test of semiparametric index model specifications
title A regression test of semiparametric index model specifications
title_full A regression test of semiparametric index model specifications
title_fullStr A regression test of semiparametric index model specifications
title_full_unstemmed A regression test of semiparametric index model specifications
title_short A regression test of semiparametric index model specifications
title_sort regression test of semiparametric index model specifications
url http://hdl.handle.net/1721.1/50189
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