理解 若者 依存 比
Formula:YDR = (youthPopulation / workingAgePopulation) × 100
Introduction to Youth Dependency Ratio
The Youth Dependency Ratio (YDR) is a demographic metric that illustrates the relationship between the youth population (typically aged 0-14) and the working-age population (typically aged 15-64). The result is a percentage that represents the burden placed on the working-age population by the youth population. Understanding YDR is essential for policymakers, economists, and social planners as it impacts decisions on resource allocation, social services, and economic planning.
Parameter usage:
youthPopulation
= Total number of individuals aged 0-14workingAgePopulation
= Total number of individuals aged 15-64
Example valid values:
youthPopulation
= 3000000workingAgePopulation
= 5000000
Output:
YDR
= Youth Dependency Ratio percentage
Data validation
The numbers should be greater than zero; otherwise, the function should return an error message. If the workingAgePopulation
is zero, it should also return an error.
Example Descriptions
For example, if a country has a youth population of 3,000,000 and a working-age population of 5,000,000, the YDR would be calculated as:
- YDR = (3,000,000 / 5,000,000) × 100
- YDR = 0.6 × 100
- YDR = 60%
This means that for every 100 working-age individuals, there are 60 dependent youths. High YDR values suggest a higher economic burden on the working population, impacting education, healthcare, and social services policies.
Summary
This calculator takes into account the youth population and working-age population to determine the Youth Dependency Ratio, expressed as a percentage. It helps in understanding demographic pressures and planning for future economic and social policies.
Tags: 人口統計学, 経済学, ソーシャル プランニング