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Behavioral and Experimental Economics Research on the Tax Deduction for Charitable Giving in Japan

Research Project

Project/Area Number 19K13722
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 07050:Public economics and labor economics-related
Research InstitutionOsaka University (2022)
Tohoku Gakuin University (2020-2021)
Kyoto University (2019)

Principal Investigator

Sasaki Shusaku  大阪大学, 感染症総合教育研究拠点, 特任准教授(常勤) (20814586)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords寄付金控除 / マッチング寄付 / フレーミング効果 / 行動経済学 / 実験経済学 / フィールド実験 / オンライン実験 / オプトイン / 寄付控除 / 寄付税制
Outline of Research at the Start

本研究では、「寄付金控除」による還付施策と「マッチング寄付」による上乗せ施策を、経済実験を用いて比較する。両者は実質的に同じ寄付促進施策であるが、前者は減税で、後者は第三者機関の上乗せ寄付で、一定金額を寄付する際の自己負担額を下げて寄付を促す。優遇額が同じでも、行動経済学では施策の表現(フレーミング)の違いが異なる効果を生むと考える。本研究では、日本人を対象に実験を行って、日本人において寄付金控除よりマッチング寄付の方が寄付行動を促進するのかを検証するとともに、日本の既存の寄付税制について改善案を提示して、政策的に貢献することを目指す。

Outline of Final Research Achievements

I use a Japanese nationwide sample and experimentally compare rebate and matching, both of which are intended to lower the price of monetary donation. Economic theory predicts that the two schemes will have the same effect on individuals’ donation behavior when their donation price is equal. However, I conduct an incentivized online experiment on 2300 Japanese residents, and find that matching, which lowers the donation price by adding a contribution from a third-party, increases individuals’ donation expenditures compared to rebate, which lowers it through a refund from a third-party. The experimental result shows that the donation expenditure in a 50% rebate drops by approximately 126 Japanese yen compared to the control, while in a 1:1 matching with essentially the same price of donation as the 50% rebate, the expenditure conversely rises by approximately 56 Japanese yen. This tendency is consistent with the results of previous experimental studies comparing the two schemes.

Academic Significance and Societal Importance of the Research Achievements

寄付金控除は、個人寄付を誘発する目的から多くの国で採用されている制度の一つである。しかし、その寄付金控除が政策担当者の期待ほどは寄付行動を誘発しない可能性が指摘されてきた。日本でも、寄付金控除が効率的に個人の寄付行動を促進できていない可能性を示唆する背景事情が複数存在する。第一に、過去に日本政府が寄付金控除の優遇内容を充実させてきたにもかかわらず利用率は低いままであり、日本の個人寄付の水準もまた国際的に低いままである。第二に、日本で寄付金控除を利用するときの追加負担が諸外国に比べて高い可能性がある。より効率的に寄付行動を促進できる、寄付控除以外の施策を探究することは日本の政策的に重要である。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (28 results)

All 2022 2021 2020 2019 Other

All Journal Article (17 results) (of which Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (7 results) (of which Int'l Joint Research: 2 results) Book (3 results) Remarks (1 results)

  • [Journal Article] Nudges for COVID-19 voluntary vaccination: How to explain peer information?2022

    • Author(s)
      Shusaku Sasaki, Tomoya Saito, Fumio Ohtake
    • Journal Title

      Social Science & Medicine

      Volume: 292 Pages: 114561-114561

    • DOI

      10.1016/j.socscimed.2021.114561

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cultural similarities and differences in lay theories of altruism: Replication of Carlson and Zaki (2018) in a Japanese sample2021

    • Author(s)
      Yuta Kawamura, Shusaku Sasaki, Takashi Kusumi
    • Journal Title

      Asian Journal of Social Psychology

      Volume: forthcoming Issue: 3 Pages: 571-576

    • DOI

      10.1111/ajsp.12502

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] An experimental comparison of rebate and matching in charitable giving: The case of Japan2021

    • Author(s)
      Shusaku Sasaki, Hirofumi Kurokawa, Fumio Ohtake
    • Journal Title

      The Japanese Economic Review

      Volume: 73 Issue: 1 Pages: 147-177

    • DOI

      10.1007/s42973-021-00085-9

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effective but fragile? Responses to repeated nudge-based messages for preventing the spread of COVID-19 infection2021

    • Author(s)
      Shusaku Sasaki, Hirofumi Kurokawa, Fumio Ohtake
    • Journal Title

      The Japanese Economic Review

      Volume: 72 Issue: 3 Pages: 371-408

    • DOI

      10.1007/s42973-021-00076-w

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 寄付者とファンドレイザー:寄付促進施策に対する主観的評価(プログレス・レポート)2021

    • Author(s)
      佐々木周作、河村悠太、渡邉文隆、岡田彩
    • Journal Title

      行動経済学

      Volume: 14

    • Related Report
      2021 Research-status Report
  • [Journal Article] 医療行動経済学をめぐる今日的論点2021

    • Author(s)
      佐々木周作
    • Journal Title

      社会保障研究

      Volume: 6 (3) Pages: 218-232

    • NAID

      120007179538

    • Related Report
      2021 Research-status Report
  • [Journal Article] 日本の高齢者の行動経済学的特性2021

    • Author(s)
      佐々木周作、大竹文雄
    • Journal Title

      生命保険論集

      Volume: 216 Pages: 171-192

    • Related Report
      2021 Research-status Report
  • [Journal Article] A Japan's Experimental Comparison of Rebate and Matching in Charitable Giving2021

    • Author(s)
      Shusaku Sasaki, Hirofumi Kurokawa, Fumio Ohtake
    • Journal Title

      Osaka University ISER Discussion Paper

      Volume: 1114 Pages: 1-36

    • DOI

      10.2139/ssrn.3773917

    • Related Report
      2020 Research-status Report
  • [Journal Article] Nudges for Public Budget Officers: A Field-based Survey Experiment2021

    • Author(s)
      Makoto Kuroki, Shusaku Sasaki
    • Journal Title

      Social Science Research Network

      Volume: 3772202 Pages: 1-59

    • DOI

      10.2139/ssrn.3772202

    • Related Report
      2020 Research-status Report
  • [Journal Article] Short-term responses to nudge-based messages for preventing the spread of COVID-19 infection: Intention, behavior, and life satisfaction2020

    • Author(s)
      Shusaku Sasaki, Hirofumi Kurokawa, Fumio Ohtake
    • Journal Title

      Osaka University Discussion Papers In Economics And Business

      Volume: 2011 Pages: 1-33

    • Related Report
      2020 Research-status Report
  • [Journal Article] 日本の地方自治体における政策ナッジの実装:横浜市行動デザインチーム(YBiT)の事例に基づく体制構築と普及戦略に関する提案2020

    • Author(s)
      高橋 勇太, 植竹 香織, 津田 広和, 大山 紘平, 佐々木 周作
    • Journal Title

      経済産業研究所ポリシー・ディスカッション・ペーパー

      Volume: 20P026 Pages: 1-22

    • Related Report
      2020 Research-status Report
  • [Journal Article] 医療現場の行動経済学の"過去・現在・未来"2020

    • Author(s)
      佐々木 周作
    • Journal Title

      医学のあゆみ

      Volume: 275 Pages: 861-865

    • Related Report
      2020 Research-status Report
  • [Journal Article] Positive and negative effects of social status on longevity: Evidence from two literary prizes in Japan2019

    • Author(s)
      Sasaki Shusaku、Kurokawa Hirofumi、Ohtake Fumio
    • Journal Title

      Journal of the Japanese and International Economies

      Volume: 53 Pages: 101037-101037

    • DOI

      10.1016/j.jjie.2019.101037

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 寄付金控除とマッチング寄付の比較:日本の寄付税制の行動経済学的実験研究2019

    • Author(s)
      佐々木周作、黒川博文、大竹文雄
    • Journal Title

      行動経済学

      Volume: 12

    • Related Report
      2019 Research-status Report
  • [Journal Article] 寄付行動を促すための介入の効果は寄付先活動によって異なるか?:全国規模オンライン実験と機械学習に基づく検証2019

    • Author(s)
      佐々木周作、石原卓典、木戸大道、北川透、依田高典
    • Journal Title

      行動経済学

      Volume: 12

    • NAID

      130007809294

    • Related Report
      2019 Research-status Report
  • [Journal Article] 地方自治体におけるナッジの実装に向けた体制構築と普及戦略:横浜市行動デザインチーム(YBiT)の取組事例に基づく提案2019

    • Author(s)
      高橋勇太、植竹香織、津田広和、大山紘平、佐々木周作
    • Journal Title

      行動経済学

      Volume: 12

    • Related Report
      2019 Research-status Report
  • [Journal Article] チーム研究の作法:フィールド実験の立上げから運営まで2019

    • Author(s)
      佐々木周作
    • Journal Title

      日本労働研究雑誌

      Volume: 705 Pages: 13-18

    • Related Report
      2019 Research-status Report
  • [Presentation] 寄付者とファンドレイザー:寄付促進施策に対する主観的評価2021

    • Author(s)
      佐々木周作
    • Organizer
      行動経済学会・第15回大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ナッジの政策活用の現場から2021

    • Author(s)
      佐々木周作
    • Organizer
      科研費シンポジウム「『行動経済学の死』を考える」
    • Related Report
      2021 Research-status Report
  • [Presentation] Using Machine Learning for Optimal Targeting of Fundraising Interventions: Evidence from a Nationwide Experiment in Japan2021

    • Author(s)
      Shusaku Sasaki
    • Organizer
      Osaka University ISER Seminar Series
    • Related Report
      2021 Research-status Report
  • [Presentation] A Japan's Experimental Comparison of Rebate and Matching in Charitable Giving2021

    • Author(s)
      Shusaku Sasaki
    • Organizer
      International Workshop for Lab and Field Experiments
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Using Machine Learning for Optimal Targeting of Interventions in Charitable Giving: Evidence from a Nationwide Experiment in Japan2020

    • Author(s)
      Shusaku Sasaki
    • Organizer
      Joint Workshop on Behavioral Economics
    • Related Report
      2019 Research-status Report
  • [Presentation] Pure Altruism, Warm-glow, and Burnout: The Case of Japanese Nurses2019

    • Author(s)
      Shusaku Sasaki
    • Organizer
      The 2019 IAREP/SABE conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 寄付金控除とマッチング寄付の比較:日本の寄付税制の行動経済学的実験研究2019

    • Author(s)
      佐々木 周作
    • Organizer
      行動経済学会
    • Related Report
      2019 Research-status Report
  • [Book] 寄付白書20212021

    • Author(s)
      寄付白書発行研究会
    • Total Pages
      155
    • Publisher
      日本ファンドレイジング協会
    • Related Report
      2021 Research-status Report
  • [Book] 新型コロナ危機に経済学で挑む2021

    • Author(s)
      経済セミナー編集部
    • Total Pages
      164
    • Publisher
      日本評論社
    • Related Report
      2021 Research-status Report
  • [Book] 行動経済学の現在と未来2019

    • Author(s)
      依田高典、岡田克彦(分担執筆:佐々木周作)
    • Total Pages
      392
    • Publisher
      日本評論社
    • ISBN
      9784535559097
    • Related Report
      2019 Research-status Report
  • [Remarks] Shusaku Sasaki's Homepage

    • URL

      https://ssasaki.weebly.com/cv.html

    • Related Report
      2022 Annual Research Report 2021 Research-status Report 2020 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

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