Quantitative analysis on Internal differentiation among part-time workers and inequality of the labour market

2022 Fiscal Year Final Research Report

• Project/Area Number: 21K20200
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0108:Sociology and related fields
• Research Institution: Osaka University of Commerce
• Principal Investigator: Sano Kazuko 大阪商業大学, JGSS研究センター, 研究員 (70909960)
• Project Period (FY): 2021-08-30 – 2023-03-31
• Keywords: 職業構造の変化 / 就業構造基本調査 / 非正規雇用 / JGSS

Outline of Final Research Achievements

The first aim of this study was to conduct an analysis using the large scale micro data "Basic Survey on Employment Structure" to capture changes in the overall occupational structure in the Japanese labor market between 2007 and 2017, and the second aim was to capture the differentiation of the status of non-regular employees in the occupational structure. As for the first aim, this study explored that “polarization” of occupational structure, that has been prevalent in Europe and the United States is not seen in the Japanese labor market. Regarding the second aim, it clarified the internal differentiation among non-regular employees in terms of long-term career patterns, using the Japanese micro-data called JGSS. During the research period, the results were made public through 10 conference presentations (8 in Japan and 2 overseas).

Free Research Field

社会学

Academic Significance and Societal Importance of the Research Achievements

本研究の最大の貢献は、欧米で先行している労働市場の「二極化仮説」が日本にどの程度当てはまるのかを、就業構造基本調査を用いた分析により明らかにしたことである。この意義は、職業構造の変化に関する代表的な国際比較研究の成果であるWright and Dwyer(2003)、Oesch（2013）とほぼ同じ手法を用いて、日本の大規模ミクロデータに含まれる職業小分類のコードを用いた分析を行うことにより、先行する海外の研究成果と比較可能な分析結果を導き出した点にある。また研究期間中、国際学会に積極的に参加することにより、将来的な国際共同研究への参加のためのネットワークを構築する機会を得た