人間の安全保障研究所

人間の安全保障研究所

セミナー・シンポジウム

2025年11月19日

11月27日(木)大谷 克 氏 (東京大学)  のセミナーを開催いたします。NEW

日時:11月27日(木)17:20-18:50
報告者:大谷 克 (東京大学)
場所:2号館11階経済学部会議室B
幹事:髙橋 雅生
言語:英語

タイトル:
How Fast, in What Ways, and in What Order Do Firms Adjust to Minimum Wage Hikes? High-Frequency Evidence from Spot Labor Markets
要旨:
This paper examines which margins firms adjust after minimum-wage hikes, in what order, and how quickly. Using contract-level data from a large spot-work platform and a wage-bin difference-in-differences, we find a 2\% employment decline in affected bins. We uncover a new low-cost channel: firms post earlier and adjust job descriptions, widening candidate pools and signaling desired skills--consistent with targeting more productive workers. Costlier amenities adjust later and modestly: transportation reimbursement rises slightly after 1-2 months, plausibly to broaden geographic reach, while staff-meal provision is unchanged. The sequence indicates rapid compliance, limited benefit offsets, and short-run incidence borne largely by establishments.