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Do demographic structure conditions sector contribution to economic growth? A machine learning approach

Author

Listed:
  • Ngueuleweu Tiwang Gildas

    (University of Dschang)

  • Ningaye paul

    (University of Dschang
    University of Religions and Denominations)

  • Fon Dorothy Engwali

    (University of Dschang)

Abstract

This paper examines the impact of demographic structure on sector contribution to economic growth. It adopts a double robust instrumental variable of the heterogeneous treatment effect coupled with policy learning methodologies applied in machine learning. The paper uses data from 210 countries from 1990 to 2020 from the World Development Indicators databases. The paper introduces a new descriptive statistic tool termed the demography evolution plot by the authors. Results from the study are threefold. First, for the impact of demographic structure on economic growth within the fast-growing population, (a) the impact is globally negative on agriculture’s GDP but if the working-age ratio of the population is more than 87%, then the effect is reversed and (b) the impact on service GDP is globally negative but the effect is inversed if the elderly share within the population is less than 27%. Second, for the impact of demographic structure on economic growth within the population with high mortality, (a) the impact is globally negative on agriculture GDP and (b) the impact on services GDP is negative. Third, for the impact of demographic structure on economic growth within the aging populations, (a) the impact is strongly positive on agriculture GDP. In addition, world economy is mostly driven by an increasing service sector, the industry sector is constant, and the agriculture sector is decreasing worldwide. The paper suggests that countries should consider their demographic structure as an instrument for policy analysis to better profit from the potentials of each sector of their economy.

Suggested Citation

  • Ngueuleweu Tiwang Gildas & Ningaye paul & Fon Dorothy Engwali, 2025. "Do demographic structure conditions sector contribution to economic growth? A machine learning approach," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 27(2), pages 2901-2941, February.
    • Handle: RePEc:spr:endesu:v:27:y:2025:i:2:d:10.1007_s10668-023-04147-3
    DOI: 10.1007/s10668-023-04147-3
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