Universität zu Köln

Pelzer, Ben, te Grotenhuis, Manfred, Eisinga, Rob ORCID: 0000-0002-8349-5226 and Schmidt-Catran, Alexander W. (2015). The Non-uniqueness Property of the Intrinsic Estimator in APC Models. Demography, 52 (1). S. 315 - 328. NEW YORK: SPRINGER. ISSN 1533-7790

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Abstract

This article explores an important property of the intrinsic estimator that has received no attention in literature: the age, period, and cohort estimates of the intrinsic estimator are not unique but vary with the parameterization and reference categories chosen for these variables. We give a formal proof of the non-uniqueness property for effect coding and dummy variable coding. Using data on female mortality in the United States over the years 1960-1999, we show that the variation in the results obtained for different parameterizations and reference categories is substantial and leads to contradictory conclusions. We conclude that the non-uniqueness property is a new argument for not routinely applying the intrinsic estimator.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Pelzer, Ben UNSPECIFIED UNSPECIFIED UNSPECIFIED te Grotenhuis, Manfred UNSPECIFIED UNSPECIFIED UNSPECIFIED Eisinga, Rob UNSPECIFIED orcid.org/0000-0002-8349-5226 UNSPECIFIED Schmidt-Catran, Alexander W. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-413466
DOI:	10.1007/s13524-014-0360-3
Journal or Publication Title:	Demography
Volume:	52
Number:	1
Page Range:	S. 315 - 328
Date:	2015
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1533-7790
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PERIOD-COHORT PROBLEM; ASSESSING VALIDITY; APPLICATION SCOPE Multiple languages Demography Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/41346