e-journal

Socioeconomic Status and Sex Ratios at Birth in Sweden: No Evidence for a Trivers–Willard effect for a Wide Range of Status Indicators

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Objectives: This study examines if there exists a positive association between socioeconomic status and the proportion of male births in humans, as proposed by Trivers and Willard in 1973, using individual-level data drawn from the complete population of Sweden.
Methods: We examine more than 3,000,000 births between 1960 and 2007 using administrative register data with
comprehensive information on various dimensions of socioeconomic status. We use six different operationalizations of
socioeconomic status, including earnings, post-transfer income (including government allowances), wealth, parental
wealth, educational level, and occupational class. We apply regression models that compare both changes in status for the same woman over time and differences in status across different women. We also measure socioeconomic status
both at the year of child birth and the year of conception.
Results: Our results show the absence of any relationship between socioeconomic status and sex ratios, using a large
number of different operationalizations of status.
Conclusions: We conclude that no substantive relationship between socioeconomic status and sex ratios exists for
the population and period of our study. Am. J. Hum. Biol. 28:67–73, 2016. VC 2015Wiley Periodicals, Inc.

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Informasi Detail

Judul Seri

American Journal Of Human Biology

No. Panggil

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Penerbit

: John Wiley & Sons, Ltd.., 2016

Deskripsi Fisik

American Journal Of Human Biology 28:67–73 (2016)

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

BIOLOGI

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

Lampiran Berkas

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