Institutional and Socioeconomic Determinants of Farmers’ Contribution to Irrigation-System Maintenance: Evidence from Concrete-Lined and Unlined Watercourses in Punjab, Pakistan: Farmer Contributions to Irrigation Maintenance. Journal of Agricultural Policy and Transformation, [S. l.], v. 2, n. 4, 2026. DOI: 10.66529/agripat.2026.2.4.130. Disponível em: https://journals.ageconfrontiers.com/index.php/agripat/article/view/130. Acesso em: 15 sep. 2026.