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The Science of Friendship After Kids: Why Your Network Shrinks (and Where It Goes)

4 the researchers behind it — It feels personal when a close friend stops texting back after you have a baby — like proof they never really valued you. Panel studies that track the

University of Amsterdam

Matthijs Kalmijn

Known for:Life-course research on how marriage and parenthood reshape couples' friendship networks and social contacts

Key findings

  1. 2003

    In survey data on married and cohabiting couples, partners' friendship networks shrink and increasingly overlap over the course of the relationship — consistent with the dyadic withdrawal hypothesis, with joint couple-friends replacing personal friends. ↗

  2. 2012

    Longitudinal analyses that separate age, marriage, and parenthood effects show the transitions themselves reduce contact with friends — ruling out the idea that the decline merely reflects cohort differences or who selects into marriage. ↗

Bowling Green State University

Kei Nomaguchi

Known for:National panel research on the costs and rewards of becoming a parent, including effects on social integration and well-being

Key findings

  1. 2003

    Tracking 1,933 previously childless adults nationally, Nomaguchi and Milkie find becoming a parent carries both costs and rewards that vary by gender and marital status — but social integration was greater for all groups of new parents. ↗

Duke University

Lynn Smith-Lovin

Known for:Foundational sociological research on how gender and childrearing shape core social-contact networks

Key findings

  1. 1997

    With Munch and McPherson, Smith-Lovin shows childrearing reshapes adults' core social-contact patterns in gender-differentiated ways, laying empirical groundwork for later parenthood-and-networks research. ↗

Ohio University

William K. Rawlins

Known for:Communication-studies theory of friendship as a relationship requiring ongoing dialectical management across life-course transitions

Key findings

  1. 2009

    In The Compass of Friendship, Rawlins argues friendships are sustained through active management of dialectical tensions like independence versus connection, and that life transitions such as parenthood test this management without signaling betrayal when contact fades. ↗

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