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If a country has a very large reproductive-age population but long-term out-migration from that group accelerates, what effect may this have on future population growth?

Answer and explanation

Correct answer: Future births and demographic momentum may weaken

A large reproductive-age population can create demographic momentum because many people are in the ages when they may have children. However, this effect depends on how many of those people remain in the country and form families there. If long-term out-migration from this group accelerates, the number of potential parents inside the country may fall. Thus option A is the best answer: future births and demographic momentum may weaken.

The word “may” is important. Out-migrants could later return, and fertility patterns may differ between migrants and those who stay, so the exact effect cannot be guaranteed. Nevertheless, fewer reproductive-age adults generally means fewer births occurring within the country, all else being equal. Option B is too absolute, option C ignores the changed population composition, and option D does not follow because migration does not automatically reduce mortality.

Related tags

Reproductive Age MigrationDemographic MomentumFuture BirthsOut MigrationPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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