Understand the idea
Social capital includes different network features rather than a single stock of useful contacts. In US Facebook-based research, cross-class economic connectedness was strongly associated with upward mobility; cohesion and civic participation were distinct measures. [S47] A companion study separates opportunities to encounter people from different socioeconomic groups from friendship formation conditional on exposure. [S48] This shifts discussion from individual networking slogans toward the structure of schools, groups, and shared activities.
Worked example
Two fictional student clubs are equally diverse on paper. One assigns mixed members meaningful shared projects; the other separates everyone into familiar subgroups. Compare exposure with actual relationship formation, and identify which outcomes and preferences would need to be measured.
Where the idea stops
The findings are observational and US-specific. They do not prove that assigning one high-income friend raises a person's earnings, or that results transfer unchanged to India. Avoid reducing people to networking assets. [S47, S48]
Connect it
History and business: institutions, access, and how opportunity is distributed.
Go deeper
Why is diversity of attendance different from diversity of meaningful relationships?
Sources
Raj Chetty and colleagues, Opportunity Insights / Nature · Research reference · Date: 2022-08
Distinguishes connectedness, cohesion, and civic engagement in US data.
Link checked 2026-10-17 · Public webpage accessed; no specialist peer review of this brief.Raj Chetty and colleagues, Opportunity Insights / Nature · Research reference · Date: 2022-08
Distinguishes exposure to other socioeconomic groups from friendship formation conditional on exposure.
Link checked 2026-10-17 · Public webpage accessed; no specialist peer review of this brief.