%0 Journal Article %T Scope sensitivity in households' willingness to pay for maintained and improved water supplies in a developing world urban area: Investigating the influence of baseline supply quality and income distribution upon stated preferences in Mexico City %A Soto Montes de Oca, Gloria %A Bateman, Ian J. %J Water Resources Research %V 42 %N 7 %P n/a-n/a %@ 0043-1397 %D 2006-07-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve