4 papers
Just After Minimum Wage Hikes: Short-Run Labor-Demand Response and Reallocation
Hayato Kanayama, Sho Miyaji, Suguru Otani
How labor markets adjust immediately after minimum wage hikes remains an open, policy-relevant question. This paper studies short-run minimum-wage effects in Japan's spot labor mar…
Triple Instrumented Difference-in-Differences
Sho Miyaji
In this paper, we formalize a triple instrumented difference-in-differences (DID-IV). In this design, a triple Wald-DID estimand, which divides the difference-in-difference-in-diff…
Two-way fixed effects instrumental variable regressions in staggered DID-IV designs
Sho Miyaji
Many studies run two-way fixed effects instrumental variable (TWFEIV) regressions, leveraging variation in the timing of policy adoption across units as an instrument for treatment…
Instrumented Difference-in-Differences with Heterogeneous Treatment Effects
Sho Miyaji
Many studies exploit variation in the timing of policy adoption across units as an instrument for treatment. This paper formalizes the underlying identification strategy as an inst…