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The Zelinsky Model of Migration Transition, [1] also known as the Migration Transition Model or Zelinsky's Migration Transition Model, claims that the type of migration that occurs within a country depends on its development level and its society type. It connects migration to the stages within the Demographic Transition Model (DTM).
The birth rate fell from 6.6 births per women before 1970 to 2.2 births per women in 1980.The rapid fertility decline in China was caused by government policy: in particular the "later, longer, fewer" policy of the early 1970s and in the late 1970s the one-child policy was also enacted which highly influence China demographic transition. [43]
Population momentum is a consequence of the demographic transition. Population momentum explains why a population will continue to grow even if the fertility rate declines or continues to decline even if the fertility rate grows. Population momentum occurs because it is not only the number of children per woman that determine population growth ...
Population pyramid of Egypt in 2005. Many of those 30 and younger are educated citizens who are experiencing difficulty finding work. According to the Encyclopedia of International Development, the term demographic trap is used by demographers "to describe the combination of high fertility (birth rates) and declining mortality (death rates) in developing countries, resulting in a period of ...
In the demographic transition model, the size and shape of population pyramids vary. In stage one of the demographic transition model, the pyramids have the most defined shape. They have the ideal big base and a skinny top. In stage two, the pyramid looks similar but starts to widen in the middle age groups.
It should also be balanced with a summary from Baby boom, which is a mainstream term for the expansion phase. Note that the "youth bulge" leads to what is called a "demographic dividend":, so this should be mentioned too. It also equates to stage 2 of the demographic transition model. Here are some sources: McIntosh, Malcolm (5 April 2009).
The transition may also be associated with demographic movements to urban areas, and a shift from agriculture and labor-based production output to technological and service-sector-based economies. This shift in demographic and disease profiles is currently under way in most developing nations, however every country is unique and transition ...
2.1 Population Distribution 2.2 Consequences of Population Distribution 2.3 Population Composition 2.4 Population Dynamics 2.5 The Demographic Transition Model 2.6 Malthusian Theory 2.7 Population Policies 2.8 Women and Demographic Change 2.9 Aging Populations 2.10 Causes of Migration 2.11 Forced and Voluntary Migration 2.12 Effects of Migration