A randomly selected treatment group of households in Gurgaon, India was informed whether (or not) their drinking water had tested positive for fecal contamination using a simple test costing about $0.50. Households that were not initially purifying their water, and were told that their drinking...

The demand for environmental quality is often presumed to be low in developingcountries due to poverty. Less attention has been paid to the possibility that lack of awareness about the adverse health effects of environmental pollution could also keep the demand low. We use a household survey...