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Welfare Effects of Health Insurance Reform: The Role of Elastic Medical Demand

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  • Reona Hagiwara

    (Economist, Institute for Monetary and Economic Studies, Bank of Japan (E-mail: reona.hagiwara@boj.or.jp))

Abstract

Some medical demand is inelastic to price changes, but not all. In assessing the effects of public health insurance reform on welfare, I examine the role of medical demand elasticity by developing a computational general equilibrium life-cycle model of the Japanese economy. The model features individual heterogeneity in health, income, and wealth. If all medical demand is inelastic, reforming public health insurance by increasing copayments reduces welfare for all current generations. However, if some medical demand is elastic, as is empirically observed, such a reform would improve welfare for current young generations, including those with poor health and low income. Furthermore, future generations benefit from the reform and their welfare increases significantly.

Suggested Citation

  • Reona Hagiwara, 2022. "Welfare Effects of Health Insurance Reform: The Role of Elastic Medical Demand," IMES Discussion Paper Series 22-E-05, Institute for Monetary and Economic Studies, Bank of Japan.
    • Handle: RePEc:ime:imedps:22-e-05
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    More about this item

    Keywords

    Copayment Increase; Price Elasticity of Medical Demand; Welfare Effects; Overlapping Generations;
    All these keywords.

    JEL classification:

    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • H51 - Public Economics - - National Government Expenditures and Related Policies - - - Government Expenditures and Health
    • I13 - Health, Education, and Welfare - - Health - - - Health Insurance, Public and Private
    • I31 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - General Welfare, Well-Being

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