| Budget Amount *help |
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1995: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1994: ¥800,000 (Direct Cost: ¥800,000)
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| Research Abstract |
1.This study focuses on economic standard regarding the sustainable use of environmental resources. The main research result is presented as "Sustainable Use of Environmental Resources".
2.Some economic approaches for evaluating sustainable use are MSY,MEY,Dynamic MEY,Depreciation, and User Cost.
3.The MSY approach is as follows. Based on the assumption that the amount of environmental resources which society use is larger than the minimum reproductive size of the resource in question, the maximum sustainable yield is obtained, when the maximum volume of stock growth equals the volume of use. The MEY approach introduces economic factors into MEY.The Dynamic MEY adds the time factor into MEY.Depreciation is a approach that invests depreciation cost in the reproduction of resources. Compares the amount of use and growth of an environmental resource. When the former is larger than the latter, depreciation cost is calculated by multiplying the resource reduction in excess of reproduction tim
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es market price. Supposing that the income from resource use consists of infinite income (net income) and user cost, User Cost is an approach that calls for the reinvestment of user cost in order to maintain net income forever.
4.This study analyzes their meanings and limits of the above approaches, socially evaluating them with regard to their usefulness as standard for the sustainable use of environmental resources. MSY,MEY,and Dynamic MEY assume perfect monitoring of environmental resources and a confirmation that the biological resources in question is larger than its minimum reproductive size. Further, an individual species may be dependent on other species for continued existence. Therefore even using a species in a sustainable manner may well have irreversible damaging effects on other species. The Depreciation method is questionable in that it is hard to determine if we can accurately evaluate the long-term reproductive cost of environmental resources using the short-term market price. User Cost doesn't show sustainability at the biological and environmental levels rather only that at the income level. Less
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