On Geographic Inequality in Japanese Regional Health Insurance
AbstractIn Japan, economic stagnation due to the lack of aggregate demand has hit the regional health insurance system and this affects most retired pensioners. The fiscal state of insurers in rural areas deteriorated. This paper aims to investigate whether the regional disparities in medical levies per household make a contribution to income-related geographic inequalities in health care financing. Data of the central two regions of the Japanese National Health Insurance in 2005 were extracted. Their share of population was about 41.5 percent. Retired employees and self-employed individuals are covered by this insurance system. We conducted the geographic decomposition using the concentration index. The within-area inequality in medical levies mainly accounted for geographic inequality in medical levies per household. The hypothesis that there was no between-area inequality in medical levies was not rejected. We revealed the differences in the within-area inequality in medical levies in the central Kanto. This means such proportionality was not built into the NHI system through near constant contribution rates across the distribution of living standards. It can be considered that the differences in the within-area inequality were caused by the inequality in income per household and the multiplier of income levies. We found that income per household, the standard land price of residential districts and the size of an insurer are major determinants of the multiplier of income levies. The higher land price tends to greater the multiplier of income levies. The expansion of insurer's size increases the multiplier of income levies in most of districts. The inequality in the multiplier of income levies will reduce if local governments raise per-household levy in proportion to the size of an insurer and lower the multiplier of income levy.
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Bibliographic InfoPaper provided by Center for Intergenerational Studies, Institute of Economic Research, Hitotsubashi University in its series PIE/CIS Discussion Paper with number 465.
Length: 14 p.
Date of creation: Feb 2010
Date of revision:
Decomposition; Inequality; Japan; Medical Levies; National Health Insurance;
This paper has been announced in the following NEP Reports:
- NEP-ALL-2010-03-28 (All new papers)
- NEP-GEO-2010-03-28 (Economic Geography)
- NEP-HEA-2010-03-28 (Health Economics)
- NEP-IAS-2010-03-28 (Insurance Economics)
- NEP-URE-2010-03-28 (Urban & Real Estate Economics)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Adam Wagstaff & Eddy van Doorslaer, 2000. "Measuring and Testing for Inequity in the Delivery of Health Care," Journal of Human Resources, University of Wisconsin Press, vol. 35(4), pages 716-733.
- Ravi P. Rannan-Eliya & Aparnaa Somanathan & Shiva Raj Adhikari & Eddy van Doorslaer & Owen Oâ€™ Donnell, 2011.
"Who Pays for Health Care in Asia?,"
- O'Donnell, Owen & van Doorslaer, Eddy & Rannan-Eliya, Ravi P. & Somanathan, Aparnaa & Adhikari, Shiva Raj & Akkazieva, Baktygul & Harbianto, Deni & Garg, Charu C. & Hanvoravongchai, Piya & Herrin, Ale, 2008. "Who pays for health care in Asia?," Journal of Health Economics, Elsevier, vol. 27(2), pages 460-475, March.
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