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The book An Essay on the Principle of Population was first published anonymously in 1798, [1] but the author was soon identified as Thomas Robert Malthus.The book warned of future difficulties, on an interpretation of the population increasing in geometric progression (so as to double every 25 years) [2] while food production increased in an arithmetic progression, which would leave a ...
[2] In his 1798 book An Essay on the Principle of Population, Malthus observed that an increase in a nation's food production improved the well-being of the population, but the improvement was temporary because it led to population growth, which in turn restored the original per capita production level.
The model is named after Thomas Robert Malthus, who wrote An Essay on the Principle of Population (1798), one of the earliest and most influential books on population. [1] Malthusian models have the following form: = where P 0 = P(0) is the initial population size, r = the population growth rate, which Ronald Fisher called the Malthusian ...
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)
Observations Concerning the Increase of Mankind, Peopling of Countries, etc. is a short essay written in 1751 by American polymath Benjamin Franklin. [1] It was circulated by Franklin in manuscript to his circle of friends, but in 1755 it was published as an addendum in a Boston pamphlet on another subject. [2]
Central place theory is an urban geographical theory that seeks to explain the number, size and range of market services in a commercial system or human settlements in a residential system. [1]
Additionally, Wallace claimed that it was the collection of chapters 3–12 of the first volume of An Essay on the Principle of Population that helped him develop his theory. [3] "In these chapters are comprised very detailed accounts from all available sources of the various causes which keep down the population of savage and barbarous nations."
The mere addition paradox (also known as the repugnant conclusion) is a problem in ethics identified by Derek Parfit and discussed in his book Reasons and Persons (1984). The paradox identifies the mutual incompatibility of four intuitively compelling assertions about the relative value of populations.