Age Structure
Age structure refers to the distribution of a population by age groups and sex, typically illustrated in a population pyramid or age structure diagram. This graphical representation provides insight into the proportionate numbers of people in different age categories within a population at a given time. It is a crucial tool for measuring changing birth and death rates over time.
The shape of the population pyramid can reveal the age-dependency ratio of a population, indicating the proportion of young and elderly people dependent on the working-age groups. This ratio is important for understanding the economic and social stability of a population.
The age structure is closely related to the birth rate, death rate, and migration of a population. Regions with high birth rates tend to have a higher proportion of children, while regions with low birth and death rates tend to have a higher percentage of elderly population.
Analyzing age structure is essential for identifying potential school-age population, labor force, military service, electorate, and for predicting population changes and planning.
In summary, age structure provides valuable insights into the demographic composition of a population, which is crucial for understanding social, economic, and political dynamics within a society.
https://en.wikipedia.org/wiki/Population_pyramid https://ourworldindata.org/age-structure https://www.thoughtco.com/age-structure-definition-3026043 http://www.stats.gov.cn/english/pdf/202010/P020201012524687421440.pdf https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:populations/x0b0e430a38ebd23f:human-populations/a/age-structure-diagrams
