Regional Impacts of a Green Tea Food System under Climate Change using a Multi-Regional CGE Model

2016 Fiscal Year Final Research Report

• Project/Area Number: 25850154
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Agricultural science in management and economy
• Research Institution: Reitaku University
• Principal Investigator: Yuko Akune 麗澤大学, 経済学部, 准教授 (90363952)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: フードシステム / 気候変動 / 品種多様性 / 応用一般均衡分析 / 地域経済 / 適応策

Outline of Final Research Achievements

The purpose of this research is to evaluate regional impacts of a green tea food system under climate change in Japan using a multi-regional Computable General Equilibrium (CGE) model. An econometric analysis showed that abnormal weather conditions caused different damage to the productivity of tea leaf production in each region: negative weather conditions included the annual duration of sunshine and abnormal high temperatures in summer in Kyusyu and the average annual temperature and drought conditions in Kanto. It also revealed that tea cultivar diversity contributed a positive impact for tea leaf production in Kyusyu. Furthermore, the result of a simulation in the multi-regional CGE model showed the impact of abnormal weather conditions in a specific region such as Kyusyu multiplied damage to each regional green tea food system through the supply-chain of intermediates. At the same time, cultivar diversity contributed to moderate these damages.

Free Research Field

フードシステム、食料経済学、地域経済学、応用一般均衡分析