| Optimal allocation of watershed management cost among different water users |
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| 作者姓名： | Wang Zanxin Margaret M. Calderon |
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| 作者单位： | [1]Department of Business Administration, Jiangsu Polytechnic University, Changzhou 213164, P. R. China [2]Institute of Renewable Natural Resources, University of the Philippines, Los Banos, the Philippines |
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| 摘 要： | The issue of water scarcity highlights the importance of watershed management. A sound watershed management should make all water users share the incurred cost. This study analyzes the optimal allocation of watershed management cost among different water users. As a consumable, water should be allocated to different users the amounts in which their marginal utilities （MUs） or marginal products （MPs） of water are equal. The value of MUs or MPs equals the water price that the watershed manager charges. When water is simultaneously used as consumable and nonconsumable, the watershed manager produces the quantity of water in which the sum of MUs and/or MPs for the two types of uses equals the marginal cost of water production. Each water user should share the portion of watershed management cost in the percentage that his MU or MP accounts for the sum of MUs and/or MPs. Thus, the price of consumable water does not equal the marginal cost of water production even if there is no public good.
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| 关 键 词： | 分水岭 水资源 水权 水价 资源配置 |
| 收稿时间： | 2006-01-21 |
| 修稿时间： | 2006-03-13 |
Optimal allocation of watershed management cost among different water users |
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| Wang Zanxin Margaret M. Calderon.Optimal allocation of watershed management cost among different water users[J].Ecological Economy,2006,2(3):245-250. |
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| Authors: | Wang Zanxin Margaret MCalderon |
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| Abstract: | The issue of water scarcity highlights the importance of watershed management. A sound watershed manage- ment should make all water users share the incurred cost. This study analyzes the optimal allocation of watershed management cost among different water users. As a consumable, water should be allocated to different users the amounts in which their marginal utilities (MUs) or marginal products (MPs) of water are equal. The value of MUs or MPs equals the water price that the watershed manager charges. When water is simultaneously used as consumable and non- consumable, the watershed manager produces the quantity of water in which the sum of MUs and/or MPs for the two types of uses equals the marginal cost of water production. Each water user should share the portion of watershed management cost in the percentage that his MU or MP accounts for the sum of MUs and/or MPs. Thus, the price of consumable water does not equal the marginal cost of water production even if there is no public good. |
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| Keywords: | Consumable Non-consumable Optimal allocation Watershed management cost |
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