Social Criterion of Project Evaluation

本研究旨在尝试建立一套评估项目的社会标准，并探讨其是否适用于环境政策的制定过程。本研究的主要成果如下：1、在对一个项目进行社会评价时，如何解释它对环境的影响，建立一种环境价值的度量方法是一个关键问题。条件价值法是衡量环境价值的最佳方法。因为云服务器不仅是使用价值，而且是选择价值和现有价值。但恰当的提问设计对CVM的实施至关重要。2、本研究在日本琵琶湖周边进行了CVM的调查。对1531人进行了问卷调查，结果如下。如果通过保护项目改善布瓦湖的水质，供水水源每年的总收益为6180亿日元，净现值为10万亿日元。虽然琵琶湖开发计划（BDP）的总金额为16000亿日元，但其中的保护项目金额仅为4100亿日元。这有利于实现开发性生态保护向保护性生态保护的转变。

This research aimes to try establishing a social criterion of project evaluation and to examine whether it can be available to an environmental policy making process. The main results of this research are below.1, When we evaluate a project socially, it is a key problem to explain how it has effect on envirionment and to establish a method to measure environmental values. The contingent valuation method (CVM) is better than any other method to measure environmental values. Because CVM is not only to use value but also to option value and existing value. But the appropriate design on questioning is crucial for CVM.2, In this research we carried on the inquiry by CVM around the Lake Biwa. The quetionnairing was conducted on 1, 531 people and the result is as follows. When the water quality in the Lake Bwa is improved by conservation projects, the annual total benefit for the source of water supply si 618 billion yen and the net present value is 10 trillion yen. While the total fo the Lake Biwa development plan (BDP) is 1, 600 billion yen, the amount of conservation projects in it only 410 billion yen. It is beneficial to change the nature of BDP form development to conservation.