Комплексен модел за измерване и факторен анализ на остаряването на населението
A Complex Model for Measurement and Factor Analysis of Population Ageing

Summary/Abstract: Composed is a model for measurement and analysis of population ageing. For these, separate methods have been published, which are combined here into a complex model on measurement and factor analysis of ageing. The proposed novelty is the further development of the factor model. In it composed is a hypothetical population with preserved intensities of the three processes of age fertility of women, death rate and migration growth by gender and age from a previous period. In these conditions two tasks of the factor analysis are solved. With the first ageing is divided into two parts – from the preserved intensities of the three processes and from their changes in the observed period. With the second task ageing is divided into three parts – form the change in the number of born alive children and from the different intensities of death rate and migration growth by age in the reviewed period. An analysis is made on ageing of the persistent population of Bulgaria for the period 1990-2000.

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