stage D

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Ace in the Hole (1955) Billy Wilder

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stage type D 

The inspiring reference to the works above, is Carroll Quigley’s Tragedy and Hope. Below is a part from his book describing different stage types of population growth. According to C. Quigley, stage type D is the last stage of population growth, where it no longer grows but rather declines.

Carroll Quigley’s Tragedy and Hope (1966) :

Most stable and primitive societies, such as the American Indians before 1492 or medieval Europe, have no great population problem because the birthrate is balanced by the death rate. In such societies both of these are high, the population is stable, and the major portion of that population is young (below eighteen years of age). This kind of society (frequently called Population Type A) is what existed in Europe in the medieval period (say about 1400) or even in part of the early modern period (say about 1700). As a result of the increased supply of food in Europe after 1725, and of men’s increased ability
to save lives because of advances in sanitation and medicine after 1775, the death rate began to fall, the birthrate remained high, the population began to increase, and the number of older persons in the society increased. This gave rise to what we have called the demographic explosion (or Population Type B). As a result of it, the population of Europe (beginning in western Europe) increased in the nineteenth century, and the major portion of that population was in the prime of life (ages eighteen to forty-five), the arms-bearing years for men and the childbearing years for women.
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