Kobayashi, Ryuki

写真a

Affiliation

Faculty of Economics (Mita)

Position

Assistant Professor (Non-tenured)/Research Associate (Non-tenured)/Instructor (Non-tenured)
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Career 【 Display / hide 】

  • 2020.04
    -
    2023.03

    Keio University, Faculty of Economics, Adjunct Researcher

  • 2021.04
    -
    2023.03

    独立行政法人日本学術振興会, 特別研究員（DC2）

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Papers 【 Display / hide 】

  • The effects of new technology on productivity: technological improvement and reallocation efficiency in the Japanese steelmaking industry

    Kobayashi R.

    Journal of Economic Structures 12 ( 1 )  2023.12

    　View Summary

    This paper analyzes the effect of new technology for steel refining—the basic oxygen furnace—on productivity growth using the productivity decomposition method. I employ a technique that decomposes productivity growth into four factors: operational improvement, within- and between-technology reallocation, and entry–exit effects. I demonstrate that the following two factors are both substantially important: (i) the rapid operational progress of new technology and (ii) between-technology reallocation both among existing furnaces and through entries. I also find that although the overall allocation efficiency improved, the within-new-technology allocation efficiency declined. The results suggest that government policies encouraged the construction of new furnaces by lowering the cost of introducing new technology, and firms were able to enjoy the high productivity gains from the new technology itself and its rapid growth.

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Papers, etc., Registered in KOARA 【 Display / hide 】

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Courses Taught 【 Display / hide 】

  • TOPICS IN APPLIED ECONOMICS AND POLICY

    2025

  • INDUSTRIAL ORGANIZATION

    2025

  • TOPICS IN APPLIED ECONOMICS AND POLICY

    2024

  • INDUSTRIAL ORGANIZATION

    2024

  • TOPICS IN APPLIED ECONOMICS AND POLICY

    2023

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