This study uses contingent valuation (CV) methods to estimate the benefit of an environmental water quality project of the Tietê River and its tributaries that flow through the São Paulo, Brazil, Metropolitan Area (SPMA). This paper demonstrates the range alternative central tendency measures...

This study uses contingent valuation (CV) methods to estimate the benefit of an environmental water quality project of the Tietê River and its tributaries that flow through the São Paulo, Brazil, Metropolitan Area (SPMA). This paper demonstrates the range alternative central tendency measures...

This working paper develops upon the idea that economic analysis has a definite role to play in informing decision makers about the desirability of going ahead with an investment project designed to improve environmental quality and also that the role of precision in this matter is not trivial....

This working paper develops upon the idea that economic analysis has a definite role to play in informing decision makers about the desirability of going ahead with an investment project designed to improve environmental quality and also that the role of precision in this matter is not trivial....