Youth Bulge Share Checker
Check for a youth bulge by testing whether the population aged 15-29 is at least a given share (default thirty percent) of the total adult population aged 15 and over.
Description
Check for a youth bulge by testing whether the population aged 15-29 is at least a given share (default thirty percent) of the total adult population aged 15 and over.
Check for a youth bulge by testing whether the population aged 15-29 is at least a given share (default thirty percent) of the total adult population aged 15 and over.1
When to use Youth Bulge Share Checker
Use this indicator to compare age-sex structure after placing every count in the stated age bands and using the same population reference date.
- Ages 15-29
- Population aged 15-29.
- Ages 30+
- Population aged 30 and over.
- Threshold %
- Youth share of adults at or above which a bulge is declared.
How the method works
- Youth share
- Population aged 15-29 as a percent of all adults aged 15+.
- Youth bulge
- True when the youth share meets or exceeds the threshold.
Limitations and assumptions
Fixed age thresholds are conventions rather than biological boundaries. Migration, cohort shocks, institutional populations, and different age-band definitions can alter comparisons.
Alternative or Complementary measures
Show the underlying age-sex counts or population pyramid beside the summary ratio. Alternative dependency thresholds can test whether a conclusion depends on one conventional age boundary.
References
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Population pyramid — Wikipedia contributors
Similar or alternative tools
- Age-Specific Sex Ratio Checker
Compute the sex ratio (males per 100 females) for each age group and flag groups outside a plausibility band; the default band of 90-110 is a stated heuristic and fully adjustable.
- Voting Age Population Share
Compute the share of the total population that has reached voting age (18 and over) as a percentage.
- Working-Age Share Calculator
Compute the share of a population aged 15-64 years, expressed as a percentage.