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Health spending, savings and fertility in a lifecycle‐dynastic model with longevity externalities

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  • Siew Ling Yew
  • Jie Zhang

Abstract

We investigate health spending, savings, fertility and policy implications in a lifecycle‐dynastic model with longevity externalities in annuity returns. We show that such externalities engender not only excessive health spending but also under‐saving and excessive fertility. Social security and health subsidization increase health spending and savings but reduce fertility from laissez‐faire levels. A publicly funded universal health system under labour‐income taxation raises fertility. Taxing health spending or using social security and public health together can obtain socially optimal health spending, savings, longevity and fertility. Numerical results based on US observations suggest substantial variations among these cases, especially in old‐age health spending. Dépenses en soins de santé, épargnes, et fécondité dans un modèle de type cycle‐de‐vie/dynastique quand des effets externes de la longévité existent. On enquête sur les dépenses en santé, les épargnes, la fécondité et les implications pour la politique publique dans un modèle de type cycle‐de‐vie/dynastique en présence d’effets externes de la longévité en termes de rentes viagères. On montre que de tels effets externes engendrent non seulement des dépenses excessives en soins de santé, mais aussi une sous‐épargne, et une fécondité excessive. Les subventions de l’aide sociale et des soins de santé accroissent les dépenses en soins de santé et l’épargne mais réduisent la fécondité par rapport à ce qui se passerait en régime de laissez‐faire. Un régime public d’assurance‐santé financé par l’imposition sur le revenu du travail accroît la fécondité. Imposer les dépenses de soins de santé ou utiliser l’aide sociale et la santé publique conjointement peuvent engendrer un niveau de dépenses en soins de santé, d’épargne, de longévité, et de fécondité socialement optimal. Des résultats numériques basés sur des données des États‐Unis suggèrent des différences substantielles entre ces cas, en particulier pour les soins de santé pour les vielles personnes.

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  • Siew Ling Yew & Jie Zhang, 2018. "Health spending, savings and fertility in a lifecycle‐dynastic model with longevity externalities," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 51(1), pages 186-215, February.
  • Handle: RePEc:wly:canjec:v:51:y:2018:i:1:p:186-215
    DOI: 10.1111/caje.12320
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    • H55 - Public Economics - - National Government Expenditures and Related Policies - - - Social Security and Public Pensions

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