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National Institute of Population and Social Security Research

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  2. Staff
  3. Katsuhisa KOJIMA


Katsuhisa KOJIMA, Director
Department of Information Collection and Analysis
Updated; 01/04/2017

Research Field

  • Income and Wealth Difference, Income Redistribution Policy, Policy for Ageing Society and Declining Birthrate, Social Security in Asian Countries and Areas

Research Project

  • Population Migration Survey
  • Study on the Effect of Benefit and Contribution Scheme with attention to the relations of Income, Assets, Consumption and Payment of the Social Security Premium and tax (Study Supported by the Health Science Research Grants from the Ministry of Health, Labour and Welfare (Study Project for Promotion of Policy Sciences))

External Activities

  • Academic Society
    The Population Association of Japan, The Applied Regional Science Conference, The Japan Socio-Gerontological Society
  • Advisory Committees
    Adviser in the research committee of the Director-General for Policies on Cohesive Society (The Cabinet Office, In 2010)
  • Other Posts
    Lecturer at Taisho Unviersity 1998.4-2011.8, "Population and Sciety"
    Lecturer at Tsuda College 2010.10-2011.3, "Population Study"

Publications /Papers

  • "Growing Enequal? Income Distirbution and Poverty in OECD countries" (Japanese Transrated Edition of OECD "Growing Enequal?") (with Yoshihiro Kaneko), 2010 (in Japanese)
  • "Long-term Care system in Taiwan and Singapore", In Long-term Care system in the World edited by Masanobu Masuda, Houritsubunkasya, 2008 (in Japanese)
  • "Trends of Income Distribution in Japan: From mid-1990s to mid-2000s” (with Yoshihiro Kaneko), Study on the Effect of Benefit and Contribution Scheme with attention to the relations of income, assets, consumption and payment of the social security premium and tax: Report for Fiscal 2007 (Study Supported by the Health Science Research Grants from the Ministry of Health, Labour and Welfare (Study Project for Promotion of Policy Sciences))
  • "Reorganizing Health Care Systems in Diversified and Aging Societies in Canada, Japan and Korea” (with Hiroya Ogata), The Review of Comparative Social Security Research 163: 45-54, 2008 (in Japanese)
  • "Research Tends of wealth difference, from Luxembourg Wealth Study”, Study on the Effect of Benefit and Contribution Scheme with attention to the relations of income and wealth difference: Report for Fiscal 2005 (Study Supported by the Health Science Research Grants from the Ministry of Health, Labour and Welfare (Study Project for Promotion of Policy Sciences)) (in Japanese)
  • "Health status and Income difference of the elderly in Japan” In Why Japan Matters, Centre for Asia-Pacific Initiatives, University of Victoria, 2005.