eprintid: 20868 rev_number: 12 eprint_status: archive userid: 2326 dir: disk0/00/02/08/68 datestamp: 2016-06-07 07:55:16 lastmod: 2016-06-30 08:54:34 status_changed: 2016-06-07 07:55:16 type: workingPaper metadata_visibility: show creators_name: Härdle, Wolfgang creators_name: Mammen, Enno creators_name: Müller, Marlene title: Testing Parametric versus Semiparametric Modelling in Generalized Linear Models subjects: ddc-510 divisions: i-110400 abstract: We consider a genralized partially linear model E(Y | X,T) = G{ X^T beta + m(T) } where G is a known function, beta is an unknown parameter vector, and m is an unknown function. The paper introduces a test statistic which allows to decide between a parametric and a semiparametric model:(i) m is linear, i.e. m(t) = t^T gamma for a parameter vector gamma,(ii) m is a smooth (nonlinear) function. Under linearity (i) it is shown that the test statistic is asymptotically normal. Moreover, it is proved that the bootstrap works asymptotically. Simulations suggest that (in small samples) bootstrap outperforms the calculation of critical values from the normal approximation. The practical performance of the test is shown in applications to data on East-West German migration and credit scoring. date: 1998 id_scheme: DOI id_number: 10.11588/heidok.00020868 schriftenreihe_cluster_id: sr-10a schriftenreihe_order: 39 ppn_swb: 1657503143 own_urn: urn:nbn:de:bsz:16-heidok-208686 language: eng bibsort: HARDLEWOLFTESTINGPAR1998 full_text_status: public place_of_pub: Heidelberg pages: 35 citation: Härdle, Wolfgang ; Mammen, Enno ; Müller, Marlene (1998) Testing Parametric versus Semiparametric Modelling in Generalized Linear Models. [Working paper] document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/20868/1/beitrag.39.pdf