Modelling regional variation of first-time births in Denmark 1980-1994 by an age-period-cohort model

Lau Caspar Thygesen, Lisbeth B. Knudsen and Niels Keiding
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Lau Caspar Thygesen: Statens Institut for Folkesundhed
Lisbeth B. Knudsen: Aalborg University
Niels Keiding: Københavns Universitet

Demographic Research, 2005, vol. 13, issue 23, 573-596

Abstract: Despite the small size of Denmark, there have traditionally been rather consistent regional differences in fertility rates. We apply the statistical age-period-cohort model to include the effect of these three time-related factors thereby concisely illuminating the regional differences of first-time births in Denmark. From the Fertility of Women and Couples Dataset we obtain data on number of births by nulliparous women by year (1980-1994), age (15-45) and county of residence. We show that the APC-model describes the fertility rates of nulliparous women satisfactorily. To catch the regional variation an interaction parameter between age and county is necessary, which provides a surprisingly good description suggesting that the county-specific age-distributions of first-time fertility rates differ. Our results are in general agreement with the 'moral geography' concepts of Tonboe (2001).

Keywords: fertility; Denmark; age-period-cohort models; fertility rates; nulliparous women; regional variation (search for similar items in EconPapers)
JEL-codes: J1 Z0 (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:dem:demres:v:13:y:2005:i:23

DOI: 10.4054/DemRes.2005.13.23

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