Empirical Study on Japanese Agricultural Policy-Inefficiency of Agricultural Sector and Impact on Economic Welfare

• Project/Area Number: 16K03690
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Economic policy
• Research Institution: National Institute for Environmental Studies
• Principal Investigator: Okagawa Azusa 国立研究開発法人国立環境研究所, 社会環境システム研究センター, 主任研究員 (20550065)
• Co-Investigator(Kenkyū-buntansha): 堀江 哲也 上智大学, 経済学部, 准教授 (40634332) ; 日引 聡 東北大学, 経済学研究科, 教授 (30218739)
• Project Period (FY): 2016-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 農業経営の効率性 / 出荷先選択 / 作物選択 / 環境保全 / 環境保全型農業の選択 / 農業経営の効率化 / 農業政策 / 効率性評価 / 経済政策 / 経済政策論

Outline of Final Research Achievements

It has been pointed out that it is important to increase the scale of agricultural management and add high value in order to increase agricultural productivity and efficiency, but it has not been realized yet. In this study, we evaluated the efficiency of farmers and showed that there is a statistical relationship between inefficiencies and areas, shipping destinations, and environmental conservation efforts. Especially, the choice of shipping destination is considered to reflect the management technique of the farmer, and it was found that the farm management not dependent on the agricultural cooperative correlates with high efficiency. A statistical relationship was also found between crop selection and environmental conservation efforts.

Academic Significance and Societal Importance of the Research Achievements

日本の農業政策がもたらし続けてきた農業生産の非効率性に関する先行研究は、記述データによるものが数多く存在するが、定量的に評価した先行研究は近年は限られており、中でも農林業センサス個票データを用いた点に本研究の特色がある。

Research Products

• [Presentation] 環境保全型農業への取り組む農業経営体の要因の分析 (2019)
  • Author(s): 岡川梓
  • Organizer: 環境経済・政策学会2019年大会
• [Presentation] 環境保全型農業による外部費用が農家の環境保全型農業採択の意思決定に与える影響 (2019)
  • Author(s): 堀江哲也
  • Organizer: 環境経済・政策学会2019年大会
• [Presentation] Farmers Decisions about Measures for Prevention of Red Soil Runoff and Planting Seasons of Sugarcane (2018)
  • Author(s): Okagawa, A. Horie, T. and Hibiki, A.
  • Organizer: NIES and Sophia Workshop on the Management of Tropical Watershed in Tropical and in Japan and Australia, Sophia University, Tokyo, Japan
• [Presentation] Where to Conduct Treatments for Prevention of Red Soil Runoff : Cost Effective Spatial Allocation of Prevention Measures (2018)
  • Author(s): Horie, T., Okagawa, A. and Hibiki, A.
  • Organizer: NIES and Sophia Workshop on the Management of Tropical Watershed in Tropical and in Japan and Australia, Sophia University, Tokyo, Japan
• [Presentation] Farmers Decisions about Measures for Prevention of Red Soil Runoff and Planting Seasons of Sugarcane (2017)
  • Author(s): Horie, T., Okagawa, A. and Hibiki, A.
  • Organizer: Mid-Continent Regional Science Association 48th Annual Conference, Oregon, Ohio, USA
  • Int'l Joint Research
• [Presentation] 久米島農家の赤土流出対策実施・サトウキビ作型選択の要因 (2016)
  • Author(s): 岡川梓, 堀江哲也, 日引聡
  • Organizer: 境経済・政策学会2016年大会
  • Place of Presentation: 青山学院大学、東京
  • Year and Date: 2016-09-10