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Population growth is the increase in the number of people in a population or dispersed group. Learn about the factors, trends and projections of global human population growth, as well as the logistic and exponential models of population dynamics.
A population model is a mathematical model that studies population dynamics. Learn about the logistic, Lotka–Volterra, island biogeography and other models, and their applications and history.
The web page discusses the models and trends of world population growth based on fertility and mortality rates. It does not provide a direct answer to the query "india population 2100", but it shows the UN projections of regional and global population changes.
A Malthusian growth model is a mathematical formula that describes exponential population growth based on the idea of the function being proportional to the speed to which the function grows. The model is named after Thomas Robert Malthus, who wrote an influential essay on population dynamics in 1798.
Population dynamics is the mathematical study of the size and age composition of populations as dynamical systems. It covers topics such as Malthusian growth, logistic equation, intrinsic rate of increase, epidemiology and geometric populations.
The Leslie matrix is a discrete, age-structured model of population growth that is widely used in population ecology. It describes the changes in a population over time based on vital rates such as survival and fecundity, and has a stable age distribution and growth rate.
The Solow–Swan model or exogenous growth model is an economic model of long-run economic growth. It attempts to explain long-run economic growth by looking at capital accumulation , labor or population growth , and increases in productivity largely driven by technological progress.
Malthusianism is a theory that population growth is potentially exponential, according to the Malthusian growth model, while the growth of the food supply or other resources is linear, which eventually reduces living standards to the point of triggering a population decline.