PT - JOURNAL ARTICLE AU - Daniel Bennett TI - Does Clean Water Make You Dirty? AID - 10.3368/jhr.47.1.146 DP - 2012 Jan 01 TA - Journal of Human Resources PG - 146--173 VI - 47 IP - 1 4099 - http://jhr.uwpress.org/content/47/1/146.short 4100 - http://jhr.uwpress.org/content/47/1/146.full SO - J Hum Resour2012 Jan 01; 47 AB - Water supply investments in developing countries may inadvertently worsen sanitation if clean water and sanitation are substitutes. This paper examines the negative correlation between the provision of piped water and household sanitary behavior in Cebu, the Philippines. In a model of household sanitation, a local externality leads to a sanitation complementarity that magnifies the compensatory response. Empirical results are consistent with the hypotheses that clean water and sanitation are substitutes and that neighbors’ sanitation levels are complements. In this situation, clean water may have large unintended consequences.