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[[On the parameter estimation problems in the multiregional demographic growth model]].

H Inaba

    Jinko Mondai Kenkyu. [Journal of Population Problems]
    |July 1, 1988
    PubMed
    Summary
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    This study clarifies the application conditions for Ledent-Rogers-Willekens parameter estimation methods. It introduces a direct discretization approach and a new calculation method for consistent population projections.

    Area of Science:

    • Demography
    • Mathematical Modeling

    Context:

    • The Ledent-Rogers-Willekens formulas are foundational in demographic parameter estimation.
    • Existing methods often rely on complex multi-regional life table techniques.

    Purpose:

    • To critically prove the formulas of Ledent-Rogers-Willekens.
    • To clarify the conditions for applying these parameter estimation methods.
    • To present an alternative parameter calculation for disaggregated population projection.

    Summary:

    • This research validates Ledent-Rogers-Willekens formulas using direct discretization of continuous-time models, avoiding multi-regional life tables.
    • A novel parameter calculation method is proposed, enabling consistent disaggregated population projections following aggregated projections.
    Keywords:
    Demographic AnalysisDemographic FactorsEstimation TechnicsGeographic FactorsMethodological StudiesModels, TheoreticalPopulationPopulation DynamicsPopulation GrowthPopulation ProjectionResearch MethodologyTime FactorsWorld

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    Impact:

    • Provides a clearer understanding of parameter estimation in demographic models.
    • Offers a more accessible and potentially more accurate method for population projection.
    • Facilitates consistent integration of aggregated and disaggregated population data.