Title | Valuing water quality improvement in China : a case study of Lake Puzhehei in Yunnan province |
Publication Type | Miscellaneous |
Year of Publication | 2011 |
Authors | Wang, H, Shi, Y, Kim, Y, Kamata, T |
Secondary Title | Policy research working paper series / World Bank |
Volume | 5766 |
Pagination | 33 p.; 6 tab. |
Date Published | 2011-08-01 |
Publisher | World Bank |
Place Published | S.l. |
Keywords | china, contingent valuation surveys, surface water pollution, surface waters, water quality |
Abstract |
While polluted surface water is encountered across most of China, few economic valuation studies have been conducted on water quality changes. Limited information about the economic values associated with those potential water quality improvements or deteriorations is a disadvantage for making proper choices in water pollution control and clean-up activities. This paper reports an economic valuation study conducted in Yunnan, China, which aims to estimate the total value of a real investment project to improve the water quality of Lake Puzhehei by one grade level. Located in Qiubei County, which is far from large cities, the lake has been experiencing fast water quality deterioration in the past years. A conservative estimation strategy shows that on average a household located in Qiubei County is willing to pay about 30 yuan per month continuously for 5 years for water quality improvement, equivalent roughly to 3 percent of household income. The elasticity of willingness-to-pay with respect to income is estimated to be 0.21. The economic rate of return of the proposed |
Notes | With 19 references |
Custom 1 | 822 |