関西労働研究会は、毎月第4金曜日に大阪で開催される研究会です。
労働経済学を中心とした応用経済学や労働関係の諸分野(人的資源管理・労働社会学・労働法など)についての研究報告・議論を行っています。
当研究会は研究者(大学院生を含む)を対象としています。多くの方のご参加をお待ちしております。
参加について
本研究会は、対面(APIR:アジア太平洋研究所、大阪大学中之島センター(12月開催))・オンライン(zoom)併用のハイブリッド形式で開催しています。定例会へ参加するには、対面・オンラインともに関西労働研究会メーリングリストを介した事前登録が必要となります。
メーリングリストに登録されていない方で、定例会への参加を希望される方は、【氏名・所属先】を明記してkansai.labor(at)gmail.comまでご連絡ください((at)を@に変更してください)。
2026年4月17日(金)14:00~17:15 (第3金曜日)
第1報告(14:00~15:30)
松本 広大 氏(RIETI)Benefit Cuts and Earnings Responses: Evidence from Japan’s Public Assistance Reform
Abstract: This paper examines how recipients’ earnings behavior responds to a reduction in benefit generosity, using the 2013–2015 cuts to the livelihood assistance standard in Japan’s Public Assistance program as a policy shock. Exploiting regional variation in the magnitude of benefit changes generated by the grade-area classification system, I estimate an event-study difference-in-differences design. The primary analysis focuses on work-capable single men aged 41–59, a group whose caseload expanded after the Global Financial Crisis. I also compare estimates for single women, mothers in single-mother households, and younger recipients. The results show that in areas where the standard declined by about 2 percent (roughly ¥1,500 per month), earned income increased. This effect is concentrated among recipients whose pre-reform earnings were zero. The magnitude is modest—about ¥4,600 per month, roughly equivalent to one day of casual work. By contrast, I find no statistically significant effect among recipients who were already working prior to the policy change, and little evidence of significant effects among single women, mothers in single-mother households, or younger recipients. Overall, the findings are consistent with a compensatory response: recipients facing a zero implicit marginal tax rate at very low earnings levels increased earnings to partially offset the benefit cut.
第2報告(15:45~17:15)
栗田 健一 氏(九州大学)Wealthy and Welfare Stigma under Inequality Aversion: Envy-Motivated Bashing (with Tomoya Tajika)
Abstract: This study explains how stigma is formed by introducing bashing into the model as a player's behavior. Under inequality aversion preferences, all citizens decide whether and to what extent they will bash welfare recipients or the wealthy, and only low-income citizens decide whether or not to receive welfare. Citizens bash others to reduce envy. We show that the bashing of welfare recipients is significantly more intense than the bashing of the wealthy. This result arises from the guilt component of inequality aversion: without guilt, the bashing of welfare recipients is alleviated. Furthermore, comparative statics show that average citizens prefer lower welfare benefits and higher income taxes compared to the case where bashing and inequality aversion are absent.
アフターセッション(17:30~20:00)
研究会に関するお問い合わせは、kansai.labor$$gmail.comまでお願いします($$を@に変更してください)。
関西労働研究会は、APIR(アジア太平洋研究所 リンク)と大阪大学大学院経済学研究科から運営支援、住友電気工業株式会社とダイハツ工業株式会社と大竹文雄大阪大学特任教授代表の基盤研究S(25H00388)から研究支援をそれぞれ受けています。