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Fertility rates must level off to the replacement rate (the net reproduction rate should be 1). If the fertility rate remains higher than the replacement rate, the population would continue to grow. 2. Mortality rate must stop declining, that is, it must remain constant. 3. Lastly, the age structure must adjust to the new rates of fertility and ...
A map of when European fertility rates fell below replacement levels Map of countries by crude birth rate. Map of countries by total fertility rate. Sub-replacement fertility is a total fertility rate (TFR) that (if sustained) leads to each new generation being less populous than the older, previous one in a given area.
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In demography, replacement migration is a theory of migration needed for a region to achieve a particular objective (demographic, economic or social). [1] Generally, studies using this concept have as an objective to avoid the decline of total population and the decline of the working-age population.
In the long term, zero population growth can be achieved when the birth rate of a population equals the death rate. That is, the total fertility rate is at replacement level and birth and death rates are stable, a condition also called demographic equilibrium. Unstable rates can lead to drastic changes in population levels.
[22] [page needed] Definitions of "economic rent" are much disputed in economic theory, but in radical theory they refer to an unearned income (which may be conceptualized as being not a true "factor-income" but rather an income in excess of factor-income) that derives from a favorable trading position or from the monopolization of a resource. [23]
Ideas from the “great replacement theory" filled a racist screed supposedly posted online by the white 18-year-old accused of targeting Black people in Saturday's rampage. Authorities were still ...
Under the standard assumption of neoclassical economics that goods and services are continuously divisible, the marginal rates of substitution will be the same regardless of the direction of exchange, and will correspond to the slope of an indifference curve (more precisely, to the slope multiplied by −1) passing through the consumption bundle in question, at that point: mathematically, it ...