Dissertation research will measure corporate social responsibility (CSR) impact on proximal health and safety of migrant farmworkers employed in one socially responsible agribusiness located in Sonora, Mexico; and explore distal relationships of CSR on selected social determinants of health (SDH) among migrant farmworker households migrating from Chiapas to the Sonora study farm.  A community-based participatory research approach will engage agribusiness owners, health/social service providers, and farmworker stakeholders.  PIMSA will support two critical phases of research; (1) Key informant interviews to synthesize emerging and competing discourse and policies concerning the role of CSR on SDH and how this information is circulated, and understood by stakeholders and; (2) Retrospective case-control study to compare acute and chronic health indicators, including work-related illness and injury among regularly returning farm workers (cases) to those who do not regularly return to the same farm (controls). Study farm employee medical records for years 2004-2009 will be reviewed.  Case employees are expected to have less acute and chronic health issues and decreased work-related illness/injury compared to controls.  Budget will cover travel, per diem, and lodging.