SIHS SEMINAR Series

次回セミナー/Next Seminar

2025年11月27日(木) November 27 (Thu.), 2025 5:20PM-6:50PM 

報告者/Presenter: 大谷 克/Suguru Otani (東京大学/The University of Tokyo)

Title: How Fast, in What Ways, and in What Order Do Firms Adjust to Minimum Wage Hikes? High-Frequency Evidence from Spot Labor Markets

場所：2号館11階経済学部会議室B  

Venue: 11th Floor, Bldg. No.2 Meeting Room B

幹事/Organizer：髙橋雅生/Masaki Takahashi 

言語/Language：英語/English

要旨/Abstract: 

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.