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If a country has a large young population but experiences heavy out-migration among ages 20 to 34, what is the most likely effect on demographic momentum?

Answer and explanation

Correct answer: Future births and growth potential may decline

People aged 20 to 34 are commonly important for both employment and family formation, although individual patterns differ across societies. If many people in this age group leave the country, fewer potential parents remain in the population. This can reduce the number of births in future years and weaken the country’s ability to convert its large young population into continued population growth. The effect may also reduce the working-age base.

Option A is correct because heavy out-migration removes a key reproductive-age group and can lower future births and growth potential. Option B is too absolute: demographic momentum will not always increase when many young adults leave. C is incorrect because the age-selective migration clearly changes population composition. D is unrelated and impossible to infer; migration does not make the death rate automatically zero. The precise effect depends on migrants’ family behaviour and duration abroad, but A is the best-supported choice.

Related tags

Young Adult MigrationDemographic MomentumFuture BirthsAge StructurePopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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