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What Drives Health Care Expenditure? Baumol's Model of "Unbalanced Growth" Revisited

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  • Jochen Hartwig

Abstract

The share of health care expenditure in GDP rises rapidly in virtually all OECD countries, causing increasing concern among politicians and the general public. Yet, economists have to date failed to reach an agreement on what the main determinants of this development are. This paper revisits Baumol's (1967) model of 'unbalanced growth', showing that the latter offers a ready explanation for the observed inexorable rise in health care expenditure. The main implication of Baumol's model in this context is that health care expenditure is driven by wage increases in excess of productivity growth. This hypothesis is tested empirically using data from a panel of 19 OECD countries. Our tests yield robust evidence in favor of Baumol's theory.

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  • Jochen Hartwig, 2006. "What Drives Health Care Expenditure? Baumol's Model of "Unbalanced Growth" Revisited," KOF Working papers 06-133, KOF Swiss Economic Institute, ETH Zurich.
    • Handle: RePEc:kof:wpskof:06-133
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    File URL: http://dx.doi.org/10.3929/ethz-a-005187505
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    Keywords

    Rising health care expenditure; 'Unbalanced growth'; OECD panel JEL classifications;

    JEL classification:

    • C12 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Hypothesis Testing: General
    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • I10 - Health, Education, and Welfare - - Health - - - General
    • O41 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - One, Two, and Multisector Growth Models

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