Demografi-frokost med Agnes Fauske
Når: Tirsdag 22. februar 2022, kl. 09.00-10.00
Agnes Fauske (PhD student in Sociology, University of Oslo) will present a paper titled:
«Has the importance of genetic influences on childbearing behavior changed across the twentieth century?»
The paper is joint work with Torkild Hovde Lyngstad.
In this work, we address the following research question: Has the relative importance of genetic influences on fertility behavior changed during the twentieth century? More specifically, we look at to what extent genetics, relative to environmental factors, explain variation in age at first birth and completed fertility, and how this changes over cohorts. We apply genetically sensitive variance decomposition methods (ACE-models) using a high-quality register based dataset on twins looking at age at first birth and number of children born to women across cohorts during the 20th century. We relate the trends in the explanatory strengths of these factors to changes towards gender equality, increasing educational attainment and changes in Norwegian family policies. The article thereby contributes to the field of social science genetics which studies how the expression of genetics vary with institutions, historical contexts, gender and other environments.