joint with Seminar in Economic Theory @ Yonsei University

要旨：This paper explores how political, social, and economic regime changes affect the lifecycles of manufacturing plants, exploiting Japan’s transition from a feudal regime to a modern regime in the late nineteenth century as a natural experiment. Using plant-level data for 1902, including the foundation year of each plant, we explored how the experience years-size profiles of plants differ before and after the regime change. Plants were found to grow much faster after the regime change, and the acceleration of growth after the regime change was much greater for the plants in exporting industries and industries intensively using steam power. These findings suggest that access to markets and access to modern technologies were the channels through which the regime change affected the experience years-size profile of plants. Furthermore, long-term historical data and narratives on two plants support the results. We also present evidence on how the life-cycle size growth differs across space.

joint with Seminar in Economic Theory @ Yonsei University

DCコンファレンス報告練習会

日本経済学会2020年度秋季大会 報告練習会

要旨：Pandemic of COVID-19 required to change our lifestyles to contain or mitigate the spread of infectious diseases. Various Non-pharmaceutical intervention (NPI) measures have been implemented in the situation that no effective treatment or vaccine has been established. New methods for monitoring the spread of infection have been proposed based on the recent technological and theoretical developments. In this talk, I review basics of mathematical models of infectious diseases and recent topics related with NPIs, and report and discuss some results on the effects of NPIs and the future perspective.