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Why should age-structure analysis for long-term development planning not be limited only to current percentages?

Answer and explanation

Correct answer: Because cohorts move into different age groups over time and future service demand changes

Age structure is a moving picture, not merely a set of present percentages. People belonging to one cohort gradually enter older age groups. Children today may later require secondary education, jobs, housing, and transport; after many years, they may increase the demand for health care and old-age support. At the same time, current working-age groups may form future elderly populations. Long-term planning must therefore project how cohorts will change, not simply describe the population at one date.

Option A is correct because cohort progression links present age groups with future service needs. Option B is too extreme: current percentages can be accurate even though they are insufficient for forecasting. C is the opposite of the demographic reality, and D ignores the importance of age composition. A country with the same total population can face very different future demands depending on the sizes of its children, working-age, and elderly groups.

Related tags

Cohort ProgressionDevelopment PlanningAge StructurePopulation PolicyPopulation CompositionGeographyClass 12 Mcq

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