Social capital is a social science concept used within macro social work practice to describe the role of human relationships, connectivity, and networks in the planned change process. Social capital has been used to examine how marginalized populations and resource-limited communities mobilize and act to improve social conditions relying on human relationships, connectivity, and networks. Social capital, particularly as it relates to social support and collective efficacy, is linked to preventing and treating disease and addressing socioeconomic conditions that create community-level barriers to well-being. Cultivating social capital has influenced social movements in the United States to produce positive change, such as efforts to create green spaces, challenge discriminatory laws, expand access to healthy food in food deserts, preserve native lands, and enact healthcare reforms. While the definition and measurement of social capital has evolved over the years, in the broadest sense it informs macro social work by improving our understanding of how collective advocacy built on interconnectedness, reciprocity, and trust in both the quality and quantity of social relationships results in real change.
