Feasibility Study of a Free Trade Agreement between Japan and ASEAN, and Quantitative Analysis of Economic Impacts on Agricultural Sector

包括阿森、日本、韩国和中国在内的东亚各国的农业都具有水稻种植规模小等共同特点，因此，在面对来自拥有大规模农场的出口国的严峻的自由贸易压力的情况下，共同制定能够确保未来农业可持续性的国际食品贸易规则是非常重要的。建立东亚自由贸易区是加强这些国家之间合作关系的一个途径。然而，这些国家之间的农业生产力仍然存在巨大差异。因此，应该像欧盟预算那样，按照各国国内生产总值（GDP）的比例设立共同基金，寻求调整各国FTA收益不平衡的共同农业政策的可能性。我们提出了一个系统的模型，以检查这种计划的可行性，考虑到粮食供应的自给率，预算约束，大米关税的削减限制，和氮平衡的组合。

Agriculture in East Asian countries, including ASEN, Japan, Korea, and China, has several common characteristics such as small-scale rice farming, and it is important for these countries to jointly establish an international food trade rule which enables their agricultural sustainability in the future against the severe free trade pressure from exporting countries with large-scale farms. Forming an East Asian Free Trade Area is a way to strengthen cooperative relationships among these countries. However, there are still huge differences in agricultural productivity among these countries. Therefore, we should seek possibilities of a common agricultural policy that adjusts imbalance of FTA gains among the countries by creating a common fund collected in proportion to the GDP level of each country just like the EU budget. We proposed a systematic model to examine the feasibility of such programs considering combination of self-sufficiency rate of rice supply, budgetary constraints, reduction limit of rice tariffs, and nitrogen balance.