Introduction -- Workplace social capital and health -- Social capital in schools -- Causal inference in social capital research -- Contextual determinants of community social capital -- Neighborhood social capital and crime -- Disaster, social capital, and health -- Advancing social capital interventions from a network and population health perspective -- Social capital interventions to promote healthy aging -- Microfinance and health -- The social capital of welfare states and its significance for population health -- Social capital, social policy, and health disparities: a legacy of political advocacy in African-American communities -- What's wrong with social capital? Critiques from social science