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Seminar: POPNET Connects with Gert Stulp

Monday 20 February 2023

Collecting personal networks to study social influences on fertility behaviour

People’s social environment is key in explaining their behaviour and preferences, including how many children people want and have. Unfortunately, obtaining information on the social environment, for instance through collecting personal network data, is difficult and often burdensome to participants. In this talk, I will first report on my experiences with collecting large personal network data (25 alters) from a representative sample of Dutch women. I’ll discuss the trade-offs researchers face when designing network studies between the burden to respondents and the reliability of characteristics of networks. Data quality is further discussed, including the usefulness of the concept “friend”. In the second part of the talk, I use these data to test evolutionary and sociological ideas about the breakdown of kin networks in contemporary populations as an explanation for the fertility decline. I’ll further discuss how personal network data can inform on social influences on fertility behaviour.

About Gert Stulp

Gert Stulp is based at the department of Sociology at the University of Groningen. He studies causes of the variation in the number of children people have and would like to have, and employs diverse methods in his research including personal network data collection, simulation studies, and machine learning.

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