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Identifier to cite or link to this item: https://hdl.handle.net/10086/15156

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Title
The Effect of Cost Containment on the Outpatient in Japan: A VAR Approach
Creator
Creator Name
Kumagai, Narimasa Kumagai, Narimasa
熊谷, 成将 熊谷, 成将
クマガイ, ナリマサ クマガイ, ナリマサ
Affiliation
Affiliation Name
Kinki University
Editor
Contributor Name
世代間問題研究プロジェクト（世代間問題の経済分析） = Economic Analysis of Intergenerational Issues, Project on Intergenerational Equity
Contributor Name
一橋大学経済研究所世代間問題研究機構 = Center for Intergenerational Studies, Institute of Economic Research, Hitotsubashi University
Key Word
Coinsurance rate
Government-managed health insurance
Japan
Labor productivity
Number of beds
Structural shock
Vector autoregressive model
Abstract
This paper examined the effects of restrictions on both the demand and supply sides of the health sector in Japan over a certain time period. Because the effect of supply side restrictions could not be taken into account in previous studies, we employed econometric time series techniques to develop a four-variable VAR model of the health sector over a sample period from November 1999 to March 2004. We used a first-difference series regarding the number of general beds to capture productivity shock. By using impulse response functions and a forecast error variance decomposition, we found that a price shock dominated the behavior of both patient and physician at forecast horizons, although in the short run the rise in the intensity of treatment leads to a decrease in the rate of doctor consultations. By estimating the structural VAR model under a recursive constraint, it was found that all of the causal links in the model constituted an invalid specification. We concluded that the increase in the patient's coinsurance rate had the effect of restraining health care costs but that a labor productivity shock did not have a permanent effect on the doctor consultation. The supply side of the health sector might absorb the change that occurred in the demand side.
Publisher
Institute of Economic Research, Hitotsubashi University
Issued Date
2008-02
Language
English(eng)
Resource Type
technical report
Version Type
VoR
Is Part OfRelation -
Related Title
PIE/CIS Discussion Paper ; No. 348
Relation
Related Identifier
URI
  http://cis.ier.hit-u.ac.jp/English/
Related Identifier
URI
  http://www.ier.hit-u.ac.jp/pie/stage2/Japanese/
Number of Pages
20
Sponsorship
科学研究費補助金（特別推進研究） = Grant-in-Aid for Specially Promoted Research
Appears in Collections
PIE/CIS Discussion paper
URL
https://hdl.handle.net/10086/15156