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A population pyramid (age structure diagram) or " age-sex pyramid " is a graphical illustration of the distribution of a population (typically that of a country or region of the world) by age groups and sex; it typically takes the shape of a pyramid when the population is growing. [1] Males are usually shown on the left and females on the right ...
The dependency ratio is an age-population ratio of those typically not in the labor force (the dependent part ages 0 to 14 and 65+) and those typically in the labor force (the productive part ages 15 to 64). It is used to measure the pressure on the productive population. Consideration of the dependency ratio is essential for governments ...
The Demography of the World Population from 1950 to 2100. Data source: United Nations — World Population Prospects 2017. Demography (from Ancient Greek δῆμος (dêmos) 'people, society' and -γραφία (-graphía) 'writing, drawing, description') [1] is the statistical study of human populations: their size, composition (e.g., ethnic group, age), and how they change through the ...
Pyramid scheme. The unsustainable exponential progression of a classic pyramid scheme in which every member is required to recruit six new people. To sustain the scheme, the 2.2 billion people in the 12th layer would be required to recruit 13.1 billion more people for the 13th layer, even though there are not nearly enough people in the world ...
Demographic statistics are measures of the characteristics of, or changes to, a population. Records of births, deaths, marriages, immigration and emigration and a regular census of population provide information that is key to making sound decisions about national policy. [1][2] A useful summary of such data is the population pyramid.
In demography, demographic transition is a phenomenon and theory which refers to the historical shift from high birth rates and high death rates to low birth rates and low death rates, as societies attain more technology, education (especially of women) and economic development. [1] The demographic transition has occurred in most of the world ...
When compared to the 2013 wealth distribution pyramid, an overall increase of 4.8% can be seen. The bottom half of the world’s total adult population, the bottom quartile in the pyramid, owns only 1.3% of the total wealth. Again, when compared to the 2013 wealth distribution pyramid, a decrease of 1.7% can be observed.
For the demographics of the Republic of China (Taiwan), see Demographics of Taiwan. China is the second most-populous country in the world and Asia with a population exceeding 1.4 billion. It ranks behind India in both these statistics. Historically, China has always been one of the nation-states with the most population.