Dynamic Economic Evaluation of Environmentally Friendly Cities

环境友好城市动态经济评价

• 批准号: 16510021
• 负责人: MIYATA Yuzuru
• 金额: $ 1.98万
• 依托单位: Toyohashi University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16510021/
• 关键词: environmentally friendly city; intertemporal CGE model; Obihiro city; transportation and land use model; decrease in population; compact city; waste; sustainable development; 社会的最適成長モデル; 廃棄物リサイクル; 自然環境; 応用一般均衡モデル; 人的資本; 独占的競争理論

This study consists of four parts. The first part is a comparative static analysis of Obihiro city in Hokkaido, Japan. A computable general equilibrium (CGE) model is developed internalizing waste generation, recycling, and abatement. By applying this model, impacts of promotion of waste recycling on the industrial structure, regional welfare etc. are analyzed. This part is also situated as a preliminary analysis in this research.The second part extends the model developed in the first part into an intertemporal one. Making the model dynamic is conducted by maximizing the sum of the discounted household utility function. Impacts of promotion of waste recycling on the industrial structure and regional welfare etc. are simulated as well. The simulation results show that promotion of waste recycling increases the regional welfare and self-sufficiency rate in economic products. These results illustrate the feature of an environmentally friendly city.The third part assumes the future decreasing trend in the population of the study area. By employing the almost same model in the second part, some simulations are conducted. Although the future population decreases, the utility level per capita shows an increasing trend depicting the sustainable development of the study area.The final part deals with a hypothetical numerical simulation model differing from the previous parts. A hypothetical city is assumed being divided into 25 zones. In each zone, own economic activities are located and people reside. In this city, existence of natural environment is assumed as public goods. The model is formulated as an intertemporal one as well. The simulation results demonstrate that the concentration of residents around the city center yields the higher welfare. Moreover the natural environment contributes an increase in household utility as well.

本研究由四个部分组成。第一部分是日本北海道带广市的比较静态分析。开发了一个可计算一般均衡（CGE）模型，将废物的产生、回收和减少内部化。运用该模型，分析了促进废物循环利用对产业结构、区域福利等的影响。这部分也作为本研究的初步分析。第二部分将第一部分中开发的模型扩展为跨期模型。通过最大化贴现家庭效用函数的总和来使模型动态化。还模拟了促进废物回收利用对产业结构、区域福利等的影响。模拟结果表明，促进废物回收利用提高了区域福利和经济产品的自给率。这些结果说明了环境友好型城市的特征。第三部分假设了研究区未来人口的减少趋势。通过在第二部分中使用几乎相同的模型，进行了一些模拟。尽管未来人口减少，但人均公用事业水平却呈现上升趋势，体现了研究区的可持续发展。最后一部分提出了与前几部分不同的假设数值模拟模型。假设一座城市被划分为 25 个区域。每个区域都有自己的经济活动和居民居住。在这个城市中，自然环境的存在被假定为公共物品。该模型也被表述为跨期模型。模拟结果表明，居民向市中心周边集中，福利水平较高。此外，自然环境也有助于家庭效用的增加。

项目成果

Urban Economic Model over a Two Dimensional Continuous Space

二维连续空间上的城市经济模型

• 发表时间: 2007
• 期刊: The 20th Pacific Regional Science Conference, Vancouver, Canada
• 作者: Ito;A.et al.;Akihiko Ito;Akihiko Ito et al.;Akihiko Ito;A.Ito;宮田 譲
• 通讯作者: 宮田 譲

Formation of Urban Configuration in a Two Dimensional Continuous Space-von Thunen, Beckmann, and Puu Unified

二维连续空间中城市形态的形成——von Thunen、Beckmann和Puu统一

• 发表时间: 2006
• 期刊: 9th Pacific Regional Science Conference Summer Institute, Kuala Lumpur, Malaysia (CD-ROM)
• 作者: Ito;A.et al.;Akihiko Ito;Akihiko Ito et al.;Akihiko Ito;A.Ito;宮田 譲;宮田 譲;Yuzuru MIYATA;Yuzuru MIYATA;宮田 譲;渋澤博幸;宮田 譲;宮田 譲
• 通讯作者: 宮田 譲

Economic Impacts of a New Road Network in San-en Region, Japan-A Spatial Computable General Equilibrium Model-

日本三园地区新道路网的经济影响-空间可计算一般均衡模型-

• 发表时间: 2006
• 期刊: 46th Congress of the European Regional Science Association (ERSA)
• 作者: Yuzuru Miyata;Hiroyuki Shibusawa;Y.Hirobata;A.Ogai
• 通讯作者: A.Ogai

A Study on an Urban Economic Model with Natural Environment

自然环境下的城市经济模式研究

• 发表时间: 2006
• 期刊: Chiikigaku-kenkyuu 35-4
• 作者: Ito;A.et al.;Akihiko Ito;Akihiko Ito et al.;Akihiko Ito;A.Ito;宮田 譲;宮田 譲;Yuzuru MIYATA;Yuzuru MIYATA;宮田 譲;渋澤博幸;宮田 譲;宮田 譲;宮田 譲;Hiroyuki SHIBUSAWA
• 通讯作者: Hiroyuki SHIBUSAWA

自然環境を考慮した都市モデルに関する研究

考虑自然环境的城市模型研究

• 发表时间: 2004
• 期刊: 日本地域学会第40回年次大会学術論文集
• 作者: 渋澤博幸;宮田譲;張鍵
• 通讯作者: 張鍵