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In March 2011 Plato was declared the 2010 mean center of United States population based on 2010 Census data. [11] [12] [13] The mean center has been moving southwest through Missouri about 20 to 30 miles per decade since 1980, when it was near DeSoto. In 2000, it was pinpointed as being near Edgar Springs.
According to Malthusian theory, population growth takes place in a geometrical fashion. When population growth takes place, food supply decreases and this is always an indicator of more people depending on the same amount of resources. It basically means that food supply will be diminishing due to strains put on the available resources.
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 environment and political stability led to efforts to reduce population growth rates in many ...
Growth model can refer to: Population dynamics in demography; Economic growth; Solow–Swan model in macroeconomics; Fei-Ranis model of economic growth; Endogenous growth theory; Kaldor's growth model; Harrod-Domar model; W.A Lewis growth model; Rostow's stages of growth
The initial population has grown from 700 to 1,200 even though fertility dropped from four to replacement (two) at the end of the third generation. Population momentum carried the population to higher levels over the next two generations. When China first introduced the one-child policy, population growth continued regardless. Even though the ...
P 0 = P(0) is the initial population size, r = the population growth rate, which Ronald Fisher called the Malthusian parameter of population growth in The Genetical Theory of Natural Selection, [2] and Alfred J. Lotka called the intrinsic rate of increase, [3] [4] t = time. The model can also be written in the form of a differential equation:
Population ethics is the philosophical study of the ethical problems arising when our actions affect who is born and how many people are born in the future. An important area within population ethics is population axiology, which is "the study of the conditions under which one state of affairs is better than another, when the states of affairs in question may differ over the numbers and the ...
Theory of population may refer to: Malthusianism, a theory of population by Thomas Malthus (1766–1834) An Essay on the Principle of Population, the book in which Malthus propounded his theory; Neo-Malthusian theory of Paul R. Ehrlich (born 1932) and others; Theory of demographic transition by Warren Thompson (1887–1973)