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　東北大学 現代経済学研究会セミナー
Tohoku University Modern Economics Seminar

　　
次回の研究会　UPCOMING EVENT

2025.04.25 (FRI)
14:40-16:10
Title: Linking Lifecycle and Cross-sectional Inequality: Cohort Dynamics and the Role of Technological Change
一橋大学　鳥谷部 貴大 氏
Abstract:
This paper examines the determinants of cross-sectional and lifecycle inequality using a lifecycle earnings process model that incorporates earnings mobility and non-employment risks across birth cohorts and over time. Unobserved skill prices and the variance of individual fixed effects across cohorts are the primary drivers, with unemployment risk being a key determinant of life cycle inequality. To explain the increase in the variance of fixed effects, we interpret these within a Roy model as realized productivity influenced by both ability and task choice. We provide evidence that technological change can amplify inequality by widening the variation in individual productivity, in addition to the standard mechanism that operates through price changes.
16:20-17:50
Title: Early Retirement, Labor Supply Shocks and Firm Performance
UCL　Eric Klemm 氏
Abstract:
This paper studies how sudden losses of experienced older workers affect firm dynamics, using a natural experiment that induced unexpected early retirements. I examine the consequences of this negative labor supply shock for firm behavior, with a focus on capital investment and technology adoption. The findings indicate persistent effects, particularly among smaller firms that struggle to replace experienced older workers and increasingly rely on temporary labor. As a result, these firms reduce investment in capital and are slower to adopt new technologies, including robotics.
当研究会について About us：
2006年度より、東北⼤学に在籍する経済学研究者有志が集まって定期的に研究会を開催しております。本研究会では国際的学術雑誌への投稿を精⼒的に⾏っている第⼀線の研究者に研究発表をお願いしております。参加資格は特に設けませんので、報告論題に関⼼のある⽅は奮ってご参加ください。学内の⽅はもちろん、学外の⽅もご参加いただけます。
Since 2006, the Tohoku University Department of Economics has hosted a seminar series inviting economists actively engaged in research publishable in top international economics journals. If you're interested in this, feel free to join our seminar. Participation is open to all, with no restrictions.
使用言語 Language:
原則英語で開催いたします。但し、オーディエンスには日本語で質問する権利を認めますので、ご了承願います。
English is the primary language for the seminar, but feel free to ask questions in Japanese.

お問い合わせ・東北大学外の方でオンラインでの参加をご希望の方は tohoku_modern_econ＠grp.tohoku.ac.jp までご連絡ください ※＠は半角

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