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The low birth rates in the contemporary United States can possibly be ascribed to the recession, which led families to postpone having children and fewer immigrants coming to the US. The current US birth rates are not high enough to maintain the size of the U.S. population, according to The Economist. [69] [70]
Along with mortality rate, natality rate is used to calculate the dynamics of a population. They are the key factors in determining whether a population is increasing, decreasing or staying the same in size. Natality is the greatest influence on a population's increase. Natality is shown as a crude birth rate or specific birth rate.
The population momentum is calculated by dividing this final total population number by the starting population. [4] Momentum, Ω, can be expressed as: = In this equation, b is the crude birth rate while e o is the life expectancy at birth. Q is the total number of births per initial birth.
Consequently, inequality lowers average education and hampers economic growth. [22] Also, in countries with a high burden of this kind, a reduction in fertility can hamper economic growth as well as the other way around. [23] Richer countries have a lower fertility rate than poorer ones, and high income families have fewer kids than low-income ...
Demographic economics or population economics is the application of economic analysis to demography, the study of human populations, including size, growth, density, distribution, and vital statistics.
One long-term effect of a declining birth rate could be a slowing economy. As the population expands, the economy has a larger workforce, which produces more goods and services. The net result is ...
For example, in a community made up of primarily young couples, the birthrate might appear to be high when compared to that of other populations. However, by calculating the standardized birthrates that is by comparing the same age group in other populations), a more realistic picture of childbearing capacity will be developed. [citation needed]
Simply put, researchers believe fewer people want to have kids since the birth rate is falling across all categories: age, race, education level, marital status and so on.