Journal article
Parental Investment by Birth Fathers and Stepfathers
Abstract
This study investigates the determinants of paternal investment by birth fathers and stepfathers. Inclusive fitness theory predicts higher parental investment in birth children than stepchildren, and this has consistently been found in previous studies. Here we investigate whether paternal investment varies with childhood co-residence duration and differs between stepfathers and divorced birth fathers by comparing the investment of (1) …
Authors
Pettay JE; Danielsbacka M; Helle S; Perry G; Daly M; Tanskanen AO
Journal
Human Nature, Vol. 34, No. 2, pp. 276–294
Publisher
Springer Nature
Publication Date
June 2023
DOI
10.1007/s12110-023-09450-6
ISSN
1045-6767