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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 ...
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 ...
Human population planning is the practice of managing the growth rate of a human population. The practice, traditionally referred to as population control, had historically been implemented mainly with the goal of increasing population growth, though from the 1950s to the 1980s, concerns about overpopulation and its effects on poverty, the ...
The text reads "Planned child birth is everyone's responsibility." Birth rate in China, 1950–2015. The one-child policy (Chinese: 一孩政策; pinyin: yī hái zhèngcè) was a population planning initiative in China implemented between 1979 and 2015 to curb the country's population growth by restricting many families to a single child.
The reverse side of the Great Seal of the United States (1776). The Latin phrase novus ordo seclorum, appearing on the reverse side of the Great Seal since 1782 and on the back of the U.S. one-dollar bill since 1935, translates to "New Order of the Ages", [1] and alludes to the beginning of an era where the United States of America is an independent nation-state; conspiracy theorists claim ...
Bottom of the pyramid. The wealth pyramid. As we move higher and higher up in wealth we find fewer and fewer people having that wealth and vice versa. The bottom of the pyramid, bottom of the wealth pyramid, bottom of the income pyramid or the base of the pyramid is the largest, but poorest socio-economic group.
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 ...
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.