The preponderance of evidence from many studies is that less wealthy households are subjected to greater exposure per capita and in aggregate to air pollution, water pollution, and toxic wastes. It also is the case that the less wealthy are provided with a disproportionately low amount of other...

We estimate willingness to pay (WTP) for better quality of tap water on a unique cross-section sample from 10 OECD countries. On the pooled sample, households are willing to pay 7.5% of the median annual water bill to improve the tap water quality. The highest relative WTP for better tap water...