Childhood Friendships with Wealthier Peers Key to Better Adult Income and Health, Stockholm University Study Finds

New research from Stockholm University highlights the significant role that childhood friendships, particularly with peers from privileged backgrounds, play in shaping the adult income and health outcomes of children from low-income families. The study, conducted by PhD student Klara Gurzo, tracked over 10,000 Swedes born in 1953 as part of the Stockholm Birth Cohort Multigenerational Study.

Data collected since the 1960s showed that children from low-income families who had at least one close friend from a wealthier background earned substantially more as adults compared to those without such friendships. These childhood relationships expose children to different ambitions, educational pathways, and social networks, indirectly providing access to greater resources through their friends’ families.

Gurzo’s dissertation, defending on March 6, is comprised of four empirical studies examining income, social mobility, and health across generations. One key finding published in the journal Social Forces demonstrated this link between early friendships and adult socioeconomic success. She emphasizes that income-related health disparities are influenced both by generational transfers and individual life experiences shaped by these early social environments.

The research suggests that policies aimed at reducing health inequalities should extend beyond addressing adult socioeconomic conditions and instead target early-life environments, such as schools and peer relationships. These settings are critical for the development of social capital and opportunities that contribute to improved health and income outcomes over the life course.

Providing context for current public health and social mobility discussions in Sweden, the study underlines the importance of nurturing inclusive social environments from childhood to create equitable opportunities for all children regardless of their economic background.