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When Does Improving Health Raise GDP?

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  • Quamrul H. Ashraf
  • Ashley Lester
  • David N. Weil

Abstract

We assess quantitatively the effect of exogenous health improvements on output per capita. Our simulation model allows for a direct effect of health on worker productivity, as well as indirect effects that run through schooling, the size and age-structure of the population, capital accumulation, and crowding of fixed natural resources. The model is parameterized using a combination of microeconomic estimates, data on demographics, disease burdens, and natural resource income in developing countries, and standard components of quantitative macroeconomic theory. We consider both changes in general health, proxied by improvements in life expectancy, and changes in the prevalence of two particular diseases: malaria and tuberculosis. We find that the effects of health improvements on income per capita are substantially lower than those that are often quoted by policy-makers, and may not emerge at all for three decades or more after the initial improvement in health. The results suggest that proponents of efforts to improve health in developing countries should rely on humanitarian rather than economic arguments.

Suggested Citation

  • Quamrul H. Ashraf & Ashley Lester & David N. Weil, 2008. "When Does Improving Health Raise GDP?," NBER Working Papers 14449, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:14449
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    More about this item

    JEL classification:

    • I10 - Health, Education, and Welfare - - Health - - - General
    • O4 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity

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