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A Malthusian Growth Model, sometimes called a simple exponential growth model, is essentially exponential growth based on a constant rate. 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
This model is often referred to as the exponential law.^{[2]} It is widely regarded in the field of population ecology as the first principle of population dynamics,^{[3]} with Malthus as the founder. The exponential law is therefore also sometimes referred to as the Malthusian Law.^{[4]}
It is generally acknowledged that populations can not grow indefinitely. ^{[5]} Joel E. Cohen has stated that the simplicity of the model makes it useful for short-term predictions, but not of much use for predictions beyond 10 or 20 years.^{[6]}
The simplest way to limit Malthusian growth model is by extending it to a logistic function. Pierre Francois Verhulst first published his logistic growth function in 1838 after he had read Malthus' essay.
Statistics, Ecology, Demography, Biology, Mathematics
Human impact on the environment, Pollution, Population, Deforestation, Global warming
Waste, Species, Population ecology, Population, Habitat
Adam Smith, Surrey, England, Demography, Classical economics
Population, Space, Agriculture, Predation, Population ecology