Economic evaluation of existence value of ecosystems

生态系统存在价值的经济评价

基本信息

批准号：
15310022
负责人：
HIDANO Noboru
金额：
$ 2.88万
依托单位：
Tokyo Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15310022/
关键词：
Existence value of ecosystem Two player non-cooperative game Reciprocity CVM Economic evaluation Concept of self Social survey 環境評価地球温暖化生態系ゲーム論ゲーム理論

项目摘要

This study investigated into three research areas in order to establish a feasible method of evaluating complex environment, in particular, ecosystems. First, the study reviewed the usage of several central concepts of discussing environmental issues. The concept of "self" is focused on and the study argued its functions and limitations when analyzing the relationships between human beings and ecosystems. Second, the study introduced a new type of two-player non-cooperative game. Cohabitation of different species is commonly found in the ecosystem. These species should have been competing with each other at first, but somehow they stopped fighting and chose to live together. In this new game, players have an option to merge together and act as a single player. The game is designed so that it can simulate the change from a competition phase to a cohabitation phase. The study thoroughly searched for conditions among various types of payoff tables under which players chose the merger option. Third, the study developed a contingent valuation technique of evaluating Japan's anti global warning policies. Great impacts on ecosystems are expected due to climate changes and contingent valuation is a potentially useful policy evaluation method of complex environmental changes.

这项研究研究了三个研究领域，以建立一种评估复杂环境的可行方法，特别是生态系统。首先，该研究回顾了讨论环境问题的几种核心概念的用法。 “自我”的概念集中在分析人类与生态系统之间的关系时，研究了其功能和局限性。其次，研究引入了一种新型的两人非合作游戏。在生态系统中通常发现不同物种的同居。这些物种一开始应该互相竞争，但是它们以某种方式停止战斗并选择共同生活。在这个新游戏中，玩家可以选择合并并充当单人玩家。该游戏的设计是为了模拟从竞争阶段到同居阶段的变化。该研究彻底搜索了玩家选择合并选项的各种类型的回报表中的条件。第三，该研究开发了一种评估日本反全球警告政策的估值技术。由于气候变化，预期对生态系统的影响很大，并取代估值是一种可能有用的复杂环境变化的政策评估方法。