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Two simulated time series processes, one stationary and the other non-stationary, are shown above. The augmented Dickey–Fuller (ADF) test statistic is reported for each process; non-stationarity cannot be rejected for the second process at a 5% significance level.
To calculate population momentum for population A, a theoretical population is constructed in which the birth rate for population A immediately becomes replacement level. Under such conditions, the population will eventually stabilize into a stationary population, with no year-to-year changes in age-specific rates or in total population.
In the wake of the wartime period, the British economy seemed to be approaching the stationary state as population was growing, plots of land with lower fertility were put into agricultural use, and the rising rents of the rural landowning class were crowding out the profits of the urban capitalists.
In probability a quasi-stationary distribution is a random process that admits one or several absorbing states that are reached almost surely, but is initially distributed such that it can evolve for a long time without reaching it. The most common example is the evolution of a population: the only equilibrium is when there is no one left, but ...
Stationary distribution may refer to: Discrete-time Markov chain § Stationary distributions and continuous-time Markov chain § Stationary distribution , a special distribution for a Markov chain such that if the chain starts with its stationary distribution, the marginal distribution of all states at any time will always be the stationary ...
World population pyramid from 1950 to projected in 2100 (UN, World Population Prospects 2017) A population pyramid (age structure diagram) or "age-sex pyramid" is a graphical illustration of the distribution of a population (typically that of a country or region of the world) by age groups and sex; it typically takes the shape of a pyramid when the population is growing. [1]
The robberies carried out by the "stationary bandit" take the form of regular taxation, and a rational "stationary bandit" sets such a level of taxation that leaves a portion of resources for the population to use for accumulation, investment, and subsequent increases in production and therefore profit that is taxed by the "stationary bandit."
Static life tables sample individuals assuming a stationary population with overlapping generations. "Static life tables" and "cohort life tables" will be identical if population is in equilibrium and environment does not change. If a population were to have a constant number of people each year, it would mean that the probabilities of death ...