This term refers to the changes populations undergo (usually associated with modernization) as they move from a situation of high mortality and fertility to a stage in which mortality has declined but fertility is still high. The third phase is characterized by low fertility and mortality (Omran 1971).
Hypothesis that countries, as they become industrialized, have declines in death rates followed by declines in birth rates.
change in a society from a situation of high mortality and fertility to one of low mortality and fertility, resulting in a shift from a low to a high proportion of older people, and an increase in total population size.
A pattern of falling death rates and birthrates in response to improved living conditions; could be reversed in deteriorating conditions.
The process by which some societies have moved from high birth and death rates to relatively low birth and death rates as a result of technological development.
The change that typically takes place, as a country develops, in the birth and death rates of its population, both of which tend eventually to fall as per capita income rises.
the historical shift of birth and death rates from high levels to low. The decline in death rates usually precedes the drop in birth rates leading to explosive growth in population.
A theory describing the transition from high birth and death rates to low birth and death rates. Demographic transition is divided roughly into three stages. In the first stage, there is high growth potential because there are both high birth and high death rates. In the second stage, the death rate drops and then the birth rate begins to fall. During this period, there is rapid population growth. In the last stage, death rates are as low as they are likely to go; fertility may continue to decline, even to a point below replacement level. In developed countries, this transition has already occurred. In less developed countries, however, the demographic transition is not yet complete.
The process by which a human population goes through a growth pattern, including an early phase of high birth and death rates, an intermediate phase of high birth rates but low death rates, and a later phase of low birth and death rates.
The transition from a condition of high birth rate and high death rate through a period of declining death rate but continuing high birth rate finally to low birth rate and low death rate. This transition may result from economic development.
a rapid increase in a society's population with the onset of industrialization, followed by a leveling off of the growth rate due to reduced fertility.
A term describing the decline of birth and death rates. The decline of the mortality rate in a population generally precedes the decline of the birth rate, resulting in a transition period with high population growth.
The long-term shift of birth and death rates from high to low levels in a population. The decline in mortality normally occurs first, leading to a period of rapid population growth before fertility starts to fall. Some writers prefer to term this process the Vital Transition, using Demographic Transition as more of an umbrella concept covering transitions on a variety of demographic dimensions besides fertility and mortality (e.g. in age structure, mobility, population distribution).
the situation where increasing levels of economic development lead to falling death rates, followed by falling birthrates (254)
refers to the change from high birth and death rates to low birth and death rates. In developed countries this transition began in the eighteenth century and continues today. Less developed countries began the transition later and are still in its earlier stages.
The change from a high birth rate and high infant mortality to low rates, as in western Europe and U.S. in late 19th century. (p. 345)
Shift to low birth rate, low infant death rate, stable population; first emerged in Western Europe and U.S. in late 19th century. (p. 710)
(1) The historical shift of birth and death rates from high to low levels in a population. The decline of mortality usually precedes the decline in fertility, thus resulting in rapid population growth during the transition period. (2) The transition from a traditional demographic regime in which fertility and mortality are high to a modern regime in which fertility and mortality are much lower. The transition from a so-called regime of "natural" fertility (not controlled by couples) towards a regime of "controlled" fertility may be referred to as a fertility transition. The period during which mortality decreases is referred to as an epidemiological transition or a health transition. It is accompanied by improved health, nutrition and organization of health services and a change in the causes of death, infectious diseases disappearing progressively in favor of chronic and degenerative diseases and accidents.
the phenomenon of urbanisation whereby people move away from rural areas into cities, notably within Africa, Latin America and Asia. See also Nutrition transition, Epidemiological transition.
Theory that suggests that the industrialization of a nation leads to declines in human death rates followed by declines in birth rates
In demography, the term demographic transition is a theory describing a possible transition from high birth rates and death rates to low birth and death rates as part of the economic development of a country from a pre-industrial to an industrialized economy. Usually it is described through the "Demographic Transition Model" (DTM) that describes the population changes over time. It is based on an interpretation begun in 1929 by the American demographer Warren Thompson of prior observed changes, or transitions, in birth and death rates in industrialized societies over the past two hundred years.