Got Water? Social Divisions and Access to Public Goods in Rural India
利用2001年印度人口普查数据，研究发现种姓异质性降低农村自来水获取，而宗教异质性反而提高获取，表明社会分化的不同维度对公共产品供给有不同影响。
Data from the 2001 Census of India is used to examine how social divisions are associated with access to tap water across rural India. Different types of social fragmentation are associated with different outcomes for tap water access. Communities that are heterogeneous in terms of caste have lower access to tap water, while communities that are fragmented across religions have higher access. This underscores the importance of heterogeneity both within and across religions. Aggregated measures of social fragmentation may thus conceal the differential effects of its component measures, and obscure important information that may affect the design of public policies.