Updated on 2026/04/03

写真a

 
SASAKI HIROKI
 
Organization
Undergraduate School School of Agriculture Associate Professor
Title
Associate Professor
External link

Degree

  • 博士(農学) ( 2013.11   京都大学 )

  • Master of Economics ( 2003.3   Osaka University )

Research Areas

  • Environmental science/Agricultural science / Environmental policy and society

  • Humanities & social sciences / Agricultural and food economics

Education

  • Osaka University   Graduate School of Economics

    2000.4 - 2003.3

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  • Niigata University   Faculty of Economics   Department of Economics

    1996.4 - 2000.3

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  • University of Alberta, Canada(International Visiting Student Program/交換留学)

    1997.4 - 1998.3

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    Country/Region: Canada

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Research History

  • Meiji University   School of Agriculture Department of Agri-food and Environmental Policy   Associate Professor

    2025.4

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  • Gakushuin Women's College

    2023.9 - 2024.3

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  • Policy Research Institute, Ministry of Agriculture, Forestry and Fisheries

    2023.4 - 2025.3

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  • 東北大学大学院農学研究科 農業政策学連携講座 准教授

    2023.4 - 2025.3

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  • 総合地球環境学研究所   共同研究員

    2021.7

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  • Policy Research Institute, Ministry of Agriculture, Forestry and Fisheries

    2020.4 - 2023.3

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  • Waseda University

    2018.9 - 2021.10

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  • 農林水産省   農林水産政策研究所   主任研究官

    2018.3 - 2020.3

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  • 国際連合食糧農業機関(FAO)   気候・環境部   プロジェクトオフィサー

    2015.4 - 2018.2

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  • Ministry of Agriculture, Forestry and Fisheries

    2011.4 - 2014.3

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  • 経済協力開発機構(OECD)   貿易・農業局   農業政策アナリスト

    2008.4 - 2011.3

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  • 農林水産省大臣官房環境政策課併任

    2005.4 - 2007.7

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  • 経済協力開発機構(OECD)   農業局   コンサルタント

    2005.1 - 2005.3

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  • Policy Research Institute, Ministry of Agriculture, Forestry and Fisheries   Researcher

    2003.4 - 2008.3

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Professional Memberships

  • 環境経済・政策学会

    2023.7

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  • European Association of Agricultural Economists (EAAE)

    2022.7

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  • 環境心理学会

    2020.1

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  • 日本農業経済学会

    2003

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Committee Memberships

  • 農林水産省   「食料・農業・農村政策審議会」臨時委員(果樹・有機部会)  

    2025.12   

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    Committee type:Government

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  • 環境省   「グリーンリストに関するワーキンググループ」委員  

    2025.10   

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    Committee type:Government

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  • 日本農業経済学会   常務理事(和文誌編集)/『農業経済研究』編集委員長  

    2025.4   

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  • 日本農業経済学会   企画委員会委員  

    2025.4   

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  • 日本農業経済学会   100周年記念大会 企画小委員会委員  

    2023.5 - 2024.3   

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  • 経済産業省   「将来の地球規模課題を起点とした産業構造の転換に係る検討会」委員  

    2023.1 - 2023.3   

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  •   農林水産省「フードガイド策定に向けたワーキンググループ」委員  

    2022.11 - 2023.3   

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  •   農林水産省「生態系サービス可視化プロジェクト検討会」オブザーバー  

    2022.10 - 2023.3   

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  • 日本農業経済学会   国際委員会委員  

    2022.4 - 2026.3   

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  • 日本農業経済学会   常務理事(国際)  

    2022.4 - 2024.3   

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  • 農林水産省   「みどりの食料システム戦略市場規模評価検討会」委員  

    2021.10 - 2022.3   

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    Committee type:Government

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  • フードテック官民協議会   「2050年の食卓の姿WT」タスクフォース有識者  

    2021.2   

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  • 日本農業経済学会   『農業経済研究』 編集委員  

    2020.4 - 2022.3   

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  • 人事院   国家公務員採用総合職試験(農業科学・水産)試験専門委員  

    2019.4 - 2020.3   

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  • 農研機構-MARCO国際シンポジウム「東アジアにおける窒素循環とその環境影響」   科学委員  

    2018.11   

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  • 農林水産省   「気候変動の下での持続可能な農業推進に関する検討会」委員  

    2018.4 - 2019.3   

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  • 環境省   「経済的手法を用いた生物多様性の価値の主流化等に関する調査事業」検討会委員  

    2014.4 - 2015.3   

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Papers

  • Promoting Methane Reductions Through Behavioural Nudges and Informational Boosts: A Field Choice Experiment in Japanese Rice Farming Reviewed

    Shengyi Du, Katsuya Tanaka, Hiroki Sasaki, Tetsuya Horie, Shinya Horie

    Journal of Agricultural Economics   2026.4

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    Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    ABSTRACT

    Agricultural methane emissions represent a significant contributor to global climate change, with irrigated rice cultivation being one of the primary sources. Despite the availability of effective mitigation technologies, their adoption often remains limited due to behavioural and institutional constraints. Water management practice that extends drainage periods during cultivation can curb methane emissions from irrigated rice at low cost, yet uptake among Japanese farmers remains modest. We surveyed 2219 rice producers in Shiga Prefecture using a labelled choice experiment that embedded two behavioural nudges (social norm and loss aversion) and one informational boost (knowledge enhancement), presented with or without a reminder. Farmers most favoured a 7‐day drainage extension. Social‐norm messages did not robustly shift adoption intentions, but loss‐aversion and knowledge enhancement paired with reminders increased the probability of choosing water management practice by 5–10 percentage points, particularly when financial incentives were modest. The added value of nudges and boosts faded once subsidies approached prevailing ceiling levels, suggesting diminishing marginal returns to stacking instruments. These findings suggest that timely, low‐cost behavioural interventions can effectively complement agri‐environmental payments in resource‐constrained settings, providing a scalable and context‐sensitive strategy to accelerate the adoption of climate‐smart rice practices.

    DOI: 10.1111/1477-9552.70038

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    Other Link: https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1477-9552.70038

  • When leadership messaging fails to encourage producers’ climate action: Field experiments reveal what works in the real world Reviewed

    Hide-Fumi Yokoo, Takahiro Kubo, Daisuke Kunii, Hiroki Sasaki

    Journal of Behavioral and Experimental Economics   102439 - 102439   2025.9

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.socec.2025.102439

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  • Do informational nudges effectively enhance the legal compliance of fertiliser companies? Lessons from randomised field experiments in Japan Reviewed

    Hiroki Sasaki, Daisuke Kunii

    European Review of Agricultural Economics   2025.3

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)   Publisher:Oxford University Press (OUP)  

    Abstract

    This study examines whether informational nudges effectively enhance adherence to the Fertiliser Act among Japanese fertiliser companies (N = 2,382) by conducting field experiments in collaboration with a national regulatory body. We find that the timely submission of reports to the authority increased by at least 5.7 percentage points, from a baseline of 70.3 per cent. This result suggests that highlighting the consequences of noncompliance—such as imprisonment and fines—through a loss aversion message effectively encourages compliance. These effects sustained for over a year in some regions, though being marginally significant. The loss aversion message has the greatest impact among both the smallest and largest companies.

    DOI: 10.1093/erae/jbaf005

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  • Consumers’ Values and Preferences for Long-Term Policies in Multifaceted Rice Production and Consumption: A Deliberative Experiment Incorporating the Perspective of Future Generations in 2050 Reviewed

    Yoshinori Nakagawa, Kentaro Hayashi, Takaharu Kameoka, Hiroki Sasaki, Koichi Kuriyama, Masako Ichihara, Makoto Saiki, Tatsuyoshi Saijo

    Global Sustainability   1 - 39   2025.2

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    Publishing type:Research paper (scientific journal)   Publisher:Cambridge University Press (CUP)  

    DOI: 10.1017/sus.2025.1

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  • Beyond information: The power of personalized nudges in promoting vegetable purchases Reviewed

    Hiroki Sasaki, Nobuhiro Ito

    Food Policy   128   102726 - 102726   2024.10

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.foodpol.2024.102726

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  • 2024ネンド ニホン ノウギョウ ケイザイ ガッカイ タイカイ ; トクベツ シンポジウム Ⅱ Invited Reviewed

    96 ( 2 )   191 - 206   2024.9

  • モバイルアプリを用いた「 ソーシャル スコア」導入が農村地域へ及ぼす影響 -宮崎県綾町におけるソーシャルキャピタル及び主観的幸福度を指標とした因果分析- Reviewed

    佐々木宏樹, 平原誠也, 松山普一, 森田浩史, 鈴木貴裕

    農業経済研究   94 ( 1 )   49 - 54   2022.6

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    Authorship:Lead author, Corresponding author  

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  • Are agricultural support policies harmful to the environment? Evidence from Japanese farm-level policy simulation Reviewed

    Hiroki Sasaki, Naoki Katayama, Satoru Okubo

    Agricultural and Resource Economics Review   50 ( 3 )   485 - 511   2021.12

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1017/age.2021.16

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  • Nudging the Purchase of Organic Agricultural Products: Evidence from an Online Randomized Field Experiment Reviewed

    Hiroki SASAKI

    34 ( 34 )   1 - 40   2021.6

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  • 農業者・消費者を対象としたフィールド実験の動向:―持続可能な農業に向けたEBPM― Reviewed

    佐々木 宏樹

    環境経済・政策研究   13 ( 1 )   50 - 54   2020

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    Language:Japanese   Publisher:環境経済・政策学会  

    DOI: 10.14927/reeps.13.1_50

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  • Do japanese citizens move to rural areas seeking a slower life? Differences between rural and urban areas in subjective well-being Reviewed

    Hiroki Sasaki

    Bio-based and Applied Economics   7 ( 1 )   1 - 17   2018.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.13128/BAE-24045

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  • Biodiversity conservation in rural area and building partnerships among stakeholders Invited

    Hiroki Sasaki

    Japanese Journal of Ecology   67 ( 2 )   217 - 227   2017

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Tohoku University  

    DOI: 10.18960/seitai.67.2_217

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  • Japanese Direct Payment for Environmentally Friendly Farming and Evaluation of Its Environmental Impacts: Policy Analysis with an Environmental-economic Integrated Model Approach Reviewed

    UETAKE Tetsuya, SASAKI Hiroki

    Journal of Rural Economics   87 ( 4 )   365 - 370   2016

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    Language:Japanese   Publisher:The Agricultural Economics Society of Japan  

    <p>Governments implement various policy measures to improve the environmental performance of the agriculture sector, but their environmental impacts are difficult to assess quantitatively. This study analyzes the environmental performance of Japanese direct payment for environmentally friendly farming, by using the OECD's policy impact model. The results suggest that such direct payments can improve the level of nitrogen purification and carbon sequestration, while they increase the emission of ammonium. Policy measures bring several different impacts both to farm economics and the environment; thus it is important to understand their effects so as to improve the cost-effectiveness of agri-ennvironmental policy measures.</p>

    DOI: 10.11472/nokei.87.365

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  • 「生態系と生物多様性の経済学(TEEB)」とは何か (特集 環境負荷と農業 : 生物多様性との共存) -- (生物多様性を活かす経済学) Invited

    佐々木 宏樹

    農業と経済   80 ( 9 )   38 - 46   2014.10

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    Language:Japanese   Publisher:昭和堂  

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  • Agri-environmental Policies to Meet Consumer Preferences in Japan: An Economic-Biophysical Model Approach Reviewed

    Tetsuya Uetake, Hiroki Sasaki

    International Journal on Food System Dynamics   5 ( 2 )   69 - 86   2014

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.18461/ijfsd.v5i2.522

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  • Conservation Auctions and Compliance: Theory and Evidence from Laboratory Experiments Reviewed

    Kentaro Kawasaki, Takeshi Fujie, Kentaro Koito, Norikazu Inoue, Hiroki Sasaki

    ENVIRONMENTAL & RESOURCE ECONOMICS   52 ( 2 )   157 - 179   2012.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s10640-012-9551-9

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  • Relationships between agricultural policies and environmental effects in Japan: An environmental-economic integrated model approach Reviewed

    Hiroki Sasaki

    Food Economics   9 ( 1-2 )   36 - 52   2012.4

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    Publishing type:Research paper (scientific journal)   Publisher:Informa UK Limited  

    DOI: 10.1080/16507541.2012.695145

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  • 農家経済活動の多角化とリスク態度―中山間地域を対象として― Reviewed

    井上憲一, 藤栄剛, 佐々木宏樹, 川崎賢太郎, 小糸健太郎

    食農資源経済論集   61 ( 1 )   95 - 105   2010.8

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  • Activity and discussion on agriculture and the environment at the OECD Invited

    佐々木 宏樹

    Science for environment & sustainable society   7 ( 1 )   11 - 27   2010.8

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    Language:Japanese   Publisher:滋賀大学環境総合研究センター  

    This paper introduces recent activity and discussion at the OECD on agriculture and the environment. The OECD plays a significant role in policy design related to agriculture and the environment as well as other important fields. At the OECD, the most recent and important issues are discussed among the 31 member countries based on analytical papers that are prepared by the Secretariat. In this study, after a quick reviewof the history of the OECD Joint Working Party on Agriculture and the Environment, the latest important themes are introduced. Recently, in addition to the collection of information for a cross-country comparative analysis, the OECD started to work on economic (quantitative) policy analysis in order to dispatch policymessages. Understanding and following the discussion not only allows us to grasp the pressing short- and longterm policy issues faced by developed countries, but also provides a vital starting point for research conducted by agricultural economists and scientists.

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  • Auctioning Conservation Contracts and Evaluating the Risk Attitudes of Farmers: Economic Experiments in Japan

    Sasaki, Hiroki, Fujie, Takeshi, Kawasaki, Kentaro, Inoue, Norikazu, Koito, Kentaro

    European Association of Agricultural Economists (EAAE) 120th Seminar, September 2-4, 2010, Chania, Crete   1 - 16   2010

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  • Institutional Design of Agri-environmental Payment : An Application of Behavioral Economics for Policy Analysis Reviewed

    SASAKI Hiroki

    農業経済研究. 別冊, 日本農業経済学会論文集   2006   203 - 210   2006.12

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    Language:Japanese   Publisher:日本農業経済学会 ; 東京  

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  • コメ生産権取引実験と制度設計への含意 Reviewed

    佐々木 宏樹

    農林水産政策研究   ( 9 )   33 - 52   2005.6

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    Language:Japanese   Publisher:農林水産省農林水産政策研究所  

    本稿では,実験経済学の手法を用いて,わが国の農業経済分野で注目の高いコメの生産権取引制度の設計について検討した。具体的には,二酸化炭素排出権取引に関するHizen and Saijo(2001)とHizen et al.(2001)の2つの先行研究の実験条件をコメ生産権取引の実情に合うように改変し,実験を実施した。実験結果から得られた主な含意は,以下の2点である。第1に本制度導入により,不遵守が生じる可能性は低い。実験結果によれば,不遵守時に一定のペナルティーを課せば,ほとんどの主体が目標値を達成する。しかし,供給地域が超過遵守を恐れて,積極的な取引が行われない可能性が示唆された。この問題を解決するためには,バンキング制度の整備も検討する必要があろう。なお同制度は,期間中の生産量を生産調整目標数量よりも低く抑えることができた場合に,その差を次期目標期間へ繰り越すことを認めるというものである。第2に取引方法に関して,相対取引,イングリッシュオークション(売り手がある付け値を提示し,買い手の誰もがそれ以上の高値を支払おうとしなくなるまで価格を上げていき,最も高値を付けた買い手が財を獲得する),ダブルオークション(参加者すべてが売り手にも買い手にもなることができる)の3つを比較した。その結果,取引価格の安定性を判断基準の1つとすれば,ダブルオークションが望ましいことが明らかとなった。ただ,本実験からも示唆されるが,ダブルオークションが優れているのは,情報量の豊富さとスピードによるところが大きい。したがって,売買注文や取引価格がリアルタイムに表示できるようなハード面での環境整備を行う必要があるだろう。

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  • Analysis about Consciousness Structures on Agri-Environmental Payment Programs in Shiga : An Application of Structural Equation Model included WTP Reviewed

    SASAKI Hiroki

    JOURNAL OF RURAL PLANNING ASSOCIATION   23 ( 4 )   275 - 284   2005.3

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    Language:Japanese   Publisher:THE ASSOCIATION OF RURAL PLANNING  

    This paper studies the consumer&#039;s consciousness structures on recently introduced agri-environmental payment programs in Shiga, using structural equation modeling (SEM) which includes WTP (Willingness to Pay). Agri-environmental payment programs in Shiga offers financial compensation to farm workers who reduce farm chemicals and chemical fertilizer more than 50% compared with current practice. The purpose of this paper is to clarify an effective way to ensure agreement consumers. To the end, mail survey was conducted in August 2003 where 4 types of CVM questionnaires were mailed to 2, 000 households in Shiga. The only differences between these questionnaires were questions on price. The overall response rate was 45.8%.&lt;BR&gt;At first, the theoretical model of SEM, and the WTP calculation model (Cameron and Quiggin, 1994) which was used as a indicator were described. After examination of WTP&#039;s validity, I drew up a hypothesis and general idea for a structural equation model which indicated cause and effect relations as&quot;knowledge&quot;→&quot;consciousness&quot;→&quot;behavior (WTP) &quot;. Then, SEM was conducted using five latent variables named &lt;I&gt;&quot;Knowledge about Agriculture and Environment&quot;, &quot;Environmental Consciousness&quot;, &quot;Food Safety Consciousness&quot;, &quot;Weakness for High-Quality Goods&quot;&lt;/I&gt;and&lt;I&gt;&quot;Evaluation for the policy&quot;&lt;/I&gt;. In a framework of CVM studies&#039; questionnaire, this kind of analysis is rarely used.&lt;BR&gt;The main findings were: (1) there are positive relations of cause and effect between agri-environmental knowledge and consciousness. (2) There are positive relations of cause and effect between environmental consciousness, weakness for high-quality goods and Consumers&#039; Evaluation for the policy. (3) There are negative relations of cause and effect between food safety consciousness and Consumers&#039; Evaluation for the policy. Only the findings of (3) are not suitable for the hypotheses. For the reasons of (3), it is conjectured that people who have high consciousness about food safety are wondering if farm chemicals and chemical fertilizer are really reducing, and that safety foods are supplied sufficiently. The other reason is that people are not satisfied with current reduction levels of farm chemicals and chemical fertilizer. The authorities can be coped with the former one by measures supposed to be done. However, for the latter one, none of the measures can be cope with. Consequently, it is suggested that another solution is needed for people with high consciousness about food safety.

    DOI: 10.2750/arp.23.275

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Books

  • Sasaki, H. (2025). Sustainable Agriculture and Behavioral Change. In: Kuriyama, K. (eds) Economics of Sustainable Agriculture. Global Environmental Studies.

    ( Role: Contributor)

    2025.3  ( ISBN:9789819635023

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  • Sustainable Agriculture and Agricultural Environmental Policy. In: Kuriyama, K. (eds) Economics of Sustainable Agriculture. Global Environmental Studies.

    Hiroki SASAKI( Role: Contributor)

    2025.3 

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  • 持続的農業の経済学: サステナブルな窒素利用の実現

    栗山 浩一編著( Role: Contributor「第3章 持続的農業と農業環境政策」「第7章 持続的農業と行動変容」)

    中央経済社  2024.4  ( ISBN:450249691X

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    Total pages:232  

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  • 集まって話しあう 日本とヨーロッパの地域づくり: 図解:5つのステップを楽しもう!

    飯田 恭子, 浅井真康, 市田 知子, 須田文明, 編著( Role: Contributorモバイルアプリを用いた「ソーシャル・スコア」導入で助け合いのまちづくりへ 宮崎県綾町 (pp.70-77))

    筑波書房  2022.4  ( ISBN:4811906233

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    Total pages:248  

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  • 日本の農業環境政策―持続的な美しい農業・農村を目指して

    荘林 幹太郎, 佐々木 宏樹( Role: Joint author)

    農林統計協会  2018.1  ( ISBN:4541041685

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    Total pages:203  

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  • Farmer behaviour, agricultural management and climate change

    Organisation for Economic Co-operation and Development( Role: Sole author)

    OECD  2012.3  ( ISBN:9264167641

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    Total pages:83   Language:English  

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  • Linkages between agricultural policies and environmental effects : using the OECD stylised agri-environmental policy impact model

    Organisation for Economic Co-operation and Development( Role: Contributor)

    OECD  2010.12  ( ISBN:9264095691

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    Total pages:174   Language:English  

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MISC

  • Nudges, Boosts, and the Intention–Behavior Gap: Evidence from a Cluster RCT on Methane Reduction in Rice Farming

    Hiroki SASAKI, Shinya Horie, Tetsuya HORIE, Katsuya Tanaka

    2025.12

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    Authorship:Lead author   Publisher:Elsevier BV  

    DOI: 10.2139/ssrn.5974875

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  • Research Issues and Development of New Research Methods in Agricultural Policy Research Institutes Invited

    Hiroki Sasaki

    Japanese Journal of Agricultural Economics   27   53 - 56   2025.3

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    Publisher:The Agricultural Economics Society of Japan  

    DOI: 10.18480/jjae.27.0_53

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  • 経済学者が読み解く 現代社会のリアル|野菜不足を解消?「ナッジ」で食生活が変わる

    佐々木宏樹

    週刊東洋経済   ( 7213 )   78 - 79   2025.1

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    Other Link: https://ndlsearch.ndl.go.jp/books/R000000004-I033897730

  • Can climate leadership messaging encourage producer actions? A field experiment in Japan’s wine industry

    Hide-Fumi Yokoo, Takahiro KUBO, Daisuke Kunii, Hiroki Sasaki

    Preprint   2024.11

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    Publisher:Center for Open Science  

    <p>If a government highlighted the first producer to adopt green technology, how would the remaining producers react? This study is the first attempt to evaluate the impact of a message sent by the government to an industry about a first mover in climate action. Among 374 wineries in Japan, randomly selected half received a message mentioning the winery that was an early adopter of renewable energy. We then observed whether other wineries participated in webinars on carbon footprint measurement to collect information. We find that this message about climate leadership did not encourage the wineries to participate in the webinar, and it even had a negative effect on nearby wineries. We interpret these results as reflecting both the strategic decisions of competing wineries and the adverse psychological effects of the message. This preregistered experiment suggests that we must be cautious when designing policies to honor first movers on the supply side.</p>

    DOI: 10.31235/osf.io/hbzun

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  • Impact of the Introduction of a Mobile App-Based Social Scoring System in Rural Areas: Case Study of Aya Town, Miyazaki Prefecture (Original; Japanese Translated and published in Sep. 2024)

    PRIMAFF Review   117   2024.9

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  • Assessing the Effects of Nudge and Boost for Methane Emission Reduction from Paddy Field- Cluster Randomized Controlled Trial in Japan

    SASAKI, Hiroki, HORIE, Shinya, HORIE, Tetsuya, TANAKA, Katsuya

    International Association of Agricultural Economists (IAAE) 2024 Conference, August 2-7, 2024, New Delhi, India   2024.8

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    DOI: 10.22004/ag.econ.344318

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  • 第4章 モバイルアプリを活用した地域貢献活動の見える化―宮崎県綾町における「AYA SCORE」の取組―

    佐々木 宏樹, 平原 誠也, 松山 普一, 森田 浩史, 鈴木 貴裕

    ICT活性化プロジェクト【イノベーション】研究資料 第1号   47 - 65   2024.2

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  • Towards Carbon Neutrality in Agriculture and Wine Production Invited

    Hiroki SASAKI

    JOURNAL OF THE BREWING SOCIETY OF JAPAN   118 ( 10 )   679 - 687   2023.10

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    DOI: 10.6013/jbrewsocjapan.118.679

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  • Do informational nudges work on fertilizer companies’ legal compliance? Evidence from nationwide natural field experiments in Japan Reviewed

    Hiroki SASAKI

    Book of Abstracts of the 183rd EAAE seminar – Experimental and Behavioural Economics Research in Agri-Food and the Environment   7 - 9   2022.9

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  • 「ナッジ」と有機農産物の購買行動—Nudge and Purchasing Behavior of Organic Food Products—特集 生物多様性保全と有機農業(第22回大会 全体セッション2) Invited

    佐々木 宏樹

    有機農業研究 = Japanese journal of organic agriculture science / 日本有機農業学会 編   14 ( 2 )   19 - 21   2022

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  • 「ナッジ」による持続可能な消費拡大に向けた 行動変容は可能か?

    佐々木宏樹

    農林水産政策研究所レビュー   103   2 - 5   2021.9

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  • コラム アカデミアと政策の境界から―ある研究員の視点―

    佐々木宏樹

    農林水産政策研究所レビュー   100   8   2021.3

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  • ナッジが有機農産物の購買行動に与える影響:オンラインによるランダム化フィールド実験からのエビデンス

    佐々木 宏樹

    環境心理学研究   8 ( 1 )   43 - 43   2020

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    DOI: 10.20703/jenvpsy.8.1_43

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    Primaff Review   95 ( 95 )   6 - 7   2020

  • Policy Intervention and Roles of Ecology toward Agri-biodiversity Conservation Invited

    佐々木宏樹

    日本生態学会大会講演要旨(Web)   67th   2020

  • Are Designing Innovative Agri-environmental Payments Possible? Lessons Learned from Experience in Japan and EU Invited

    Hiroki SASAKI

    55 ( 1 )   26 - 27   2019.3

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  • Evaluating the Environmental Impact of Agricultural Policies in Japan -Combination of Farm Level Decision Making Model and Stylized Site-Specific Biophysical Model Invited

    Hiroki SASAKI

    Proceedings of NARO-MARCO International Symposium on Nitrogen Cycling and Its Environmental Impacts in East Asia   40   2018.11

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  • 主観的幸福度アプローチによる都市と農村の比較分析

    Hiroki SASAKI

    新たな価値プロジェクト研究資料 第1号 農業・農村の新たな機能・価値の評価手法開発   5 - 43   2016.8

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  • 農業・農村の有する価値と企業の社会的活動-行動経済学的視点からの考察-

    121 - 138   2016.8

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  • 書評「堀口健治編著:再生可能資源と役立つ市場取引」 Invited

    佐々木宏樹

    農業経済研究   87 ( 3 )   310 - 311   2016

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    Publishing type:Book review, literature introduction, etc.  

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  • GDP,ISEW,主観的幸福度による都市農村格差の計測

    林岳, 佐々木宏樹

    日本地域学会年次大会学術発表論文集(CD-ROM)   52nd   ROMBUNNO.SESSHOND,DAI3KAIJO 1   2015

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    J-GLOBAL

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  • 「ブックレビュー:その問題、経済学で解決できます。ウリ・ニーズィー,ジョン・A・リスト(著),望月衛(翻訳)」

    佐々木宏樹

    農林水産政策研究所レビュー   61 ( 6559 )   118 - 118   2014

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    Language:Japanese   Publisher:東洋経済新報社  

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  • 消費者のリスク態度と環境保全型農産物の消費行動に関する研究

    藤栄剛, 小糸健太郎, 佐々木宏樹

    滋賀大学環境総合研究センター研究年報   7 ( 1 )   74   2010.8

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    J-GLOBAL

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  • 農家の経済活動多角化とリスク態度―中山間地域を対象として―

    井上憲一, 藤栄剛, 佐々木宏樹, 川崎賢太郎, 小糸健太郎

    日本農業経営学会研究大会報告要旨   2009   128 - 129   2009.9

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    J-GLOBAL

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  • Integrated Model of Paddy Rice Production and Related Environmental Effects

    Hiroki SASAKI

    Van Ittersum, M.K., J. Wolf & H.H. Van Laar (Eds),Proceedings of the Conference on Integrated Assessment of Agriculture and Sustainable Development: Setting the Agenda for Science and Policy (AgSAP 2009)   2009.1

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  • 平成19年度環境政策 農林水産省環境政策

    佐々木宏樹

    環境管理(産業環境管理協会)   43 ( 4 )   351 - 356   2007.4

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  • 原油価格高騰に伴う農林水産省の対応

    佐々木 宏樹

    食料と安全   4 ( 12 )   47 - 52   2006.12

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    Language:Japanese   Publisher:全国瑞穂食糧検査協会  

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  • 環境支払いによる多面的機能の効率的な供給-行動経済学の政策適用-

    佐々木宏樹

    『多面的機能政策の諸相と今後の展開(農林水産政策研究所 多面的機能プロジェクト研究資料 第1号)』   137 - 161   2005.12

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  • コメ生産権取引実験と制度設計への含意

    佐々木 宏樹

    農林水産政策研究所レビュー   ( 17 )   31 - 35   2005.10

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    Language:Japanese   Publisher:農林水産省農林水産政策研究所  

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  • 環境支払い政策の制度設計―行動経済学の政策適用―

    佐々木宏樹

    農林水産政策研究成果情報   ( 4 )   7 - 8   2005.6

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    J-GLOBAL

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  • 書評『Choices, Values, and Frames: Edited by Daniel Kahneman and Amos Tversky, Cambridge University Press』

    農林水産政策研究所レビュー   13   2004.9

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Presentations

  • Effectiveness of nudge in reducing methane emissions from agriculture

    Du, S., Tanaka, K., Sasaki, H., Horie, T., Horie, S.

    6th Congress of Research Network on Economic Experiments for the Common Agricultural Policy (REECAP) 

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    Event date: 2024.9

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  • Behavioral Changes in Farmers and Consumers Towards a Greener Agri-food System Invited

    Hiroki SASAKI

    FFTC-SNZ International Conference: Strategy and Actions to Incentivize GHG Emission Reductions and Carbon Offset within Sustainable Agrifood Systems, GIS NTU Convention Center, Taipei, Taiwan  2024.9 

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    Event date: 2024.9

    Language:English   Presentation type:Oral presentation (invited, special)  

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  • Effectiveness of nudge in reducing methane emissions from agriculture

    Du, S., Tanaka, K., Sasaki, H., Horie, T., Horie, S.

    the 13th Congress of the Asian Association of Environmental and Resource Economics (AAERE) 

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    Event date: 2024.8

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  • Assessing the Effects of Nudge and Boost for Methane Emission Reduction from Paddy Field- Cluster Randomized Controlled Trial in Japan

    SASAKI, Hiroki, HORIE, Shinya, HORIE, Tetsuya, TANAKA, Katsuya

    International Association of Agricultural Economists (IAAE) 2024 Conference, August 2-7, 2024, New Delhi, India  2024.8 

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    Event date: 2024.8

    Presentation type:Oral presentation (general)  

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  • Analysis and Mapping of Impacts under Climate Change for Adaptation and Food Security (AMICAF) Invited

    Hiroki SASAKI

    APEC Workshop: Strengthening APEC Cooperation on Food Security and Climate Change  2017.4 

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    Event date: 2017.4

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  • Nudge, Boost, and Farmer Behavior: A Randomized Field Experiment for Methane Emission Reduction in Paddy Fields

    ABEF (Association of Behavioral Economics and Finance) x J-TREE(Japan-Tokyo Resource and Environmental Economics) JOINT WORKSHOP, GRIPS  2025.7 

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    Presentation type:Oral presentation (general)  

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  • Current Status of Research on the Environmental Impact Evaluation of Agricultural Policies in Japan Invited

    Hiroki SASAKI

    OECD Workshop "Environmental Impacts of Agrcultural Support: Current evidence and knowledge gaps", Hybrid - Paris, France or Online  2024.9 

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    Language:English   Presentation type:Oral presentation (invited, special)  

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  • 諸外国の農業政策研究機関における研究課題と新たな研究手法の展開 Invited

    佐々木宏樹

    2024年度日本農業経済学会大会(学会創立 100 周年記念大会)特別シンポジウム  2024.3 

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  • Green nudge messages and information-collection behavior of wineries: field experiments in Japan

    2023.10 

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  • Effect of Personalised Nudge in Promoting Vegetable Consumption Evidence from a Natural Field Experiment using Purchase Receipt Data

    Hiroki SASAKI and Nobuhiro ITO

    XVII Congress of the European Association of Agricultural Economists (EAAE)  2023.8 

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  • Japanese Perspectives: Role of Private Stakeholders in the Strategy for the Country Invited

    Hiroki SASAKI

    EU-Japan dialogues on Sustainable Food Systems: from production to consumption workshop  2022.10 

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    Presentation type:Symposium, workshop panel (nominated)  

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  • アミノ酸バランス改善飼料に対する養豚農家の導入意向とそれを後押しする情報提供のあり方に関する研究

    楠戸建, 長田隆, 荻野暁史, 丸山優樹, 佐々木宏樹

    日本畜産学会第130回大会  2022.9 

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  • Do informational nudges work on fertilizer companies’ legal compliance? - Evidence from nationwide natural field experiments in Japan-

    Hiroki SASAKI

    183rd EAAE(The European Association of Agricultural Economists) seminar: Experimental and Behavioural Economics Research in Agri-Food and the Environment  2022.9 

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  • 肥料生産事業者の法令遵守強化にナッジは有効か? ―国内全事業者を対象としたナチュラル・フィールド実験から―

    佐々木宏樹

    日本農業経済学会大会  2022.3 

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  • ナッジと有機農産物の購買行動(全体セッションII 生物多様性保全と有機農業) Invited

    佐々木宏樹

    第22回 日本有機農業学会大会  2021.12 

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  • Agricultural N management policies and behavioral nudges Invited

    Hiroki SASAKI

    International Workshop Towards Sustainable Nitrogen Use Connecting Human Society and Nature  2021.10 

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  • モバイルアプリを用いた「ソーシャルスコア」導入が農村地域へ及ぼす影響-宮崎県綾町におけるソーシャルキャピタル及び主観的幸福度を指標とした因果分析-

    佐々木宏樹, 平原誠也, 松山普一, 森田浩史, 鈴木貴裕

    日本農業経済学会  2021.3 

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  • ナッジが有機農産物の購買行動に与える影響 -オンラインによるランダム化 フィールド実験からのエビデンス-

    佐々木宏樹

    日本農業経済学会  2020.3 

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  • 農業生物多様性向上に向けた仕掛けと生態学の役割 Invited

    佐々木宏樹

    日本生態学会大会シンポジウム『生態学と政策,研究と実務をつなぐ』  2020.3 

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  • Introduction of Japanese Agri-environmental Policies -Comparison with OECD Countries- Invited

    Hiroki SASAKI

    International Workshop on Improving the Nitrogen Use Efficiency in Dairy Farming System through Crop-Livestock Integration  2020.2 

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  • ナッジが有機農産物の購買行動に与える影響 -オンラインによるランダム化 フィールド実験からのエビデンス-

    佐々木宏樹

    日本環境心理学会  2020.2 

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  • Climate Change, Causation and Experimental Approach Invited

    Hiroki SASAKI

    International Workshop on Scaling up and out of Climate-smart Technologies and Practices for Sustainable Agriculture  2019.11 

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  • Evaluating the Environmental Impact of Agricultural Policies-Paddy Farming Case Study-

    Hiroki SASAKI

    OECD Joint Working Party on Agriculture and the Environment  2019.10 

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  • Evaluating the Environmental Impact of Agricultural Policies in Japan Invited

    2019.3 

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  • 食料・農業分野におけるEBPMの事例紹介 Invited

    佐々木宏樹

    国立環境研究所 研究集会『研究者/研究所として“EBPM”にどう関わるとよいのか?』  2019.2 

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  • Evaluating the Environmental Impact of Agricultural Policies in Japan- Combination of Farm Level Decision Making Model and Stylized Site-Specific Biophysical Model- Invited

    Hiroki SASAKI

    NARO-MARCO International Symposium on Nitrogen Cycling and Its Environmental Impacts in East Asia  2018.11 

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  • Are Designing Innovative Agri-environmental Payments Possible? Lessons Learned from Experience in Japan and EU- Invited

    Hiroki SASAKI

    第68回地域農林経済学会大会 国際ミニシンポジウム  2018.10 

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    Presentation type:Oral presentation (invited, special)  

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  • Can Degrowth Transition Contribute to the Wellbeing of Rural Residents? -A Case Study in Japan-

    Hayashi, T, Sasaki, H

    5th International Conference on Degrowth for Ecological Sustainability and Social Equity  2016.8 

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  • Do Japanese Turn to Rural Areas Seeking a Slower Life? Measuring the Rural-Urban Disparity with Subjective Well-Being

    Hiroki SASAKI

    5th Associazione Italiana di Economia Agraria e Applicata (AIEAA) Conference: The Changing Role of Regulation in the Bio-based Economy,  2016.6 

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  • GDP,真の進歩指標,主観的幸福度による都市農村格差の計測

    林岳, 佐々木宏樹

    北海道農業経済学会  2016.3 

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  • Multi-Disciplinary Assessments of Climate Change Impacts on Agriculture to Support Adaptation Decision Making

    Hiroki SASAKI, Hideki KANAMARU

    Rome;Science Symposium on Climate  2015.11 

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  • GDP, ISEW, 主観的幸福度による都市農村格差の計測

    林岳, 佐々木宏樹

    日本地域学会  2015.10 

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  • Measuring the rural-Urban Disparity with GDP, ISEW and Subjective Well-being: A Case Study in Japan

    Hayashi, T, Sasaki, H

    11th International Conference of the European Society for Ecological Economics (ESEE)  2015.6 

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  • 農村活性化と生物多様性 Invited

    佐々木宏樹, 西田貴明

    日本生態学会  2015.3 

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  • 環境保全型農業直接支払交付金の環境影響評価―環境経済統合モデルによる政策分析―

    植竹哲也, 佐々木宏樹

    日本農業経済学会  2015.3 

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  • Integrated Model of Paddy Rice Production and Related Environmental Effects in Japan

    Hiroki SASAKI

    120th EAAE Seminar External Cost of Farming Activities: Economic Evaluation, Risk Considerations, Environmental Repercussions and Regulatory Framework  2010.9 

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  • Auctioning Conservation Contracts and Risk Attitude of Farmers: Economic Experiments in Japan

    Sasaki, H, T. Fujie, K. Kawasaki, N. Inoue, K. Koito

    120th EAAE Seminar External Cost of Farming Activities: Economic Evaluation, Risk Considerations, Environmental Repercussions and Regulatory Framework  2010.9 

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  • Conservation Auctions and Compliance: Theory and Evidence from Laboratory Experiments

    Kawasaki, K, T. Fujie, K. Koito, N. Inoue, H. Sasaki

    2010 AAEA, CAES, & WAEA Joint Annual Meeting  2010.6 

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  • Japanese Case Study on SAPIM (Stylised Agricultural Policy Impact Model)

    2010.1 

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  • オークション型環境支払とコンプライアンス行動:理論分析と経済実験

    川崎賢太郎・藤栄剛・小糸健太郎・井上憲一・佐々木宏樹

    環境経済・政策学会  2009.9 

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  • 環境保全型農業の採択と危険回避度・時間割引率

    藤栄 剛, 井上憲一, 佐々木宏樹, 川崎賢太郎, 小糸健太郎

    環境経済・政策学会  2009.9 

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  • 農家の経済活動多角化とリスク態度― 中山間地域を対象として―

    井上憲一, 藤栄剛, 佐々木宏樹, 川崎賢太郎, 小糸健太郎

    農業経営学会  2009.9 

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  • Integrated Model of Paddy Rice Production and Related Environmental Effects

    Integrated Assessment of Agriculture, Sustainable Development, AgSAP) Conference

    2009.3 

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  • Compliance Behaviour under Conservation Auctions: Theoretical and Experimental Analysis

    2009年度TEA (Theoretical Economics and Agriculture) 春季大会  2009 

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  • 環境支払い政策の制度設計-行動経済学の政策適用- Invited

    佐々木宏樹

    滋賀大学環境総合研究センター公開研究会  2007.1 

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  • 環境支払い政策の制度設計-行動経済学の政策適用-

    佐々木宏樹

    日本農業経済学会  2006.4 

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  • 滋賀県環境農業直接支払い政策に対する消費者の潜在意識とWTP―構造方程式モデルとCVMによる分析―

    佐々木宏樹

    日本農業経済学会  2004.3 

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Research Projects

  • Boosting biodiversity-friendly food choices using choice architecture

    Grant number:25K00093  2025.4 - 2029.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Grant amount:\18720000 ( Direct Cost: \14400000 、 Indirect Cost:\4320000 )

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  • 農家への高精度な気象・作物生育予測情報技術導入の普及策と農家の参入退出と経済厚生

    Grant number:23K27009  2023.4 - 2027.3

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    堀江 哲也, 佐々木 宏樹, 田中 勝也, 入谷 純, 堀江 進也

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    Grant amount:\18330000 ( Direct Cost: \14100000 、 Indirect Cost:\4230000 )

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  • 農家への高精度な気象・作物生育予測情報技術導入の普及策と農家の参入退出と経済厚生

    Grant number:23H02316  2023.4 - 2027.3

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    堀江 哲也, 田中 勝也, 入谷 純, 堀江 進也, 佐々木 宏樹

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    Grant amount:\18330000 ( Direct Cost: \14100000 、 Indirect Cost:\4230000 )

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  • 行動インサイトが消費者のプラントベースフード選択に与える影響に関する実証研究

    Grant number:23K05420  2023.4 - 2026.3

    日本学術振興会  科学研究費助成事業 基盤研究(C)  基盤研究(C)

    佐々木 宏樹

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    Grant amount:\4680000 ( Direct Cost: \3600000 、 Indirect Cost:\1080000 )

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  • Towards Sustainable Nitrogen Use Connecting Human Society and Nature

    2021.4 - 2028.3

    Research Institute for Humanity and Nature  Research Project 

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    Authorship:Coinvestigator(s) 

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  • レシートビッグデータを活用した「パーソナル・ナッジ」による野菜摂取拡大効果の検証

    Grant number:20K15615  2020.4 - 2023.3

    日本学術振興会  科学研究費助成事業 若手研究  若手研究

    佐々木 宏樹

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    Grant amount:\4160000 ( Direct Cost: \3200000 、 Indirect Cost:\960000 )

    日本の野菜消費量は、食習慣の欧米化などを背景に約30年前から減少傾向が続く。成人1人当たり摂取量は1日平均280グラム程度で、国が推奨する目標の1日350グラムを下回る。農林水産省は、野菜摂取を呼び掛けるポスターなどで啓発を続けているものの、積極的な消費拡大には結び付いていない。他方、コロナの影響により、健康、栄養バランス、環境、持続性などの意識は高まり、また家庭内調理は増加した。
    そこで、本研究では、家計簿アプリから収集されたレシートデータをアウトカムとし、野菜購買を促す効果的な情報発信(ナッジ)のあり方を探るため、ランダム化比較試験 (Randomized Controlled Trial、RCT)の手法を使ったフィールド実験を実施した。
    これまでの研究で用いられることが多かった販売データであるPOSやID-POSは、JANコードのない生鮮品のデータをカバーしておらず、またユーザー軸での購買履歴の把握や店舗横断的な視点での分析ができないことが課題であった。このため、本研究では、家計簿アプリを通じて、レシートデータ、またレシートがない場合は手入力データによって長期間購買データを収集し、日常の買い物行動に情報提供(ナッジ)が与える影響を分析するデザインとした。加えて、本研究では、上記レシートから取得する野菜の購入量や購入額のデータだけでなく、野菜の摂取量を申告データ(「野菜料理摂取皿数」)から取得する実験デザインとした。
    R3年度に当初の計画通り実験が終了し、対照群と2つの介入群の実験データを収集することができた。本研究により、情報提供(ナッジ)が購入量/額に与える影響に加え、摂取量への影響についても考察することが可能となる。また、消費者の様々な属性情報と合わせて分析することで、詳細な消費者行動を解明する。

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  • Clarification of Environmentally Friendly Agricultural Management Behavior by Economic Experiments : With Central Focus on Risk Attitude

    Grant number:19580271  2007 - 2009

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    INOUE Norikazu, FUJIE Takeshi, KOITO Kentaro, KAWASAKI Kentaro, SASAKI Hiroki

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    Grant amount:\3770000 ( Direct Cost: \2900000 、 Indirect Cost:\870000 )

    This research (1) reveals the risk attitude of the economic agent toward agricultural management such as environmentally friendly practices and (2) examines the institutional design of conservation auction policy, which is one of the agri-environmental policies, through a mail survey and economic experiments. Correspondingly, (1) the risk attitude affects the preference of the conservation auction and diversification behavior of farmers and (2) under certain conditions of conservation auction, the results of economic auction show that the efficiency of uniform-price auction exceeds that of discriminatory-price auction.

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Teaching Experience

  • フィールドワーク実習

    2025.4 Institution:明治大学農学部

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  • Advanced Environmental Economics

    2025.4 Institution:Meiji University

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  • Research Seminar

    2025.4 Institution:Meiji University

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  • Macro Economics

    2025.4 Institution:Meiji University

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  • Basic Seminar

    2025.4 Institution:Meiji University

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  • Environmental Economics

    2025.4 Institution:Meiji University

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  • ファームステイ実習

    2025.4 Institution:明治大学農学部

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  • プロジェクトゼミ

    2025.4 Institution:明治大学農学部

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  • 持続可能性の経済学

    2025.4 Institution:明治大学農学部

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  • 多文化学際科目Ⅵ(指標による国際比較)

    2023.10 - 2024.3 Institution:Gakushuin Women's College

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  • 農林水産政策学特論

    2023.10 - 2024.3 Institution:Tohoku University

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  • ポリシースタディ(食料・農業政策)

    2018.10 - 2020.3 Institution:早稲田大学大学院政治学研究科公共経営大学院

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