DEMOGRAPHY
Demographic changes are among the most direct influences on urbanisation and urban change. Movements of people, into and out from cities, shape the size, configuration and social composition of cities. In Third World countries expectations of improved living standards draw millions of migrants into cities ,while for many urban dwellers in the West the good life' is realised through suburbanisation or exurbanisa-tion. The condition of the urban environment can also affect the demographic structure of cities by influenc-ing the balance between rates of fertility and mortality Intraurban variations in health are pronounced in Third World cities where well above-average mortality rates are recorded in overcrowded squatter areas, but socio-spatial differences in health status are also characteristic of many Western cities.Demographic changes are related to other 'trigger factors such as economic growth or decline, and polit-ical change. For example, population growth in a Third World country may induce political attempts to restrict migration, whether within the country to control over urban isation or between countries, as along the Mexico-USA border.
DEMOGRAPHY
Demographic changes are among the most direct influences on urbanisation and urban change. Movements of people, into and out from cities, shape the size, configuration and social composition of cities. In Third World countries expectations of improved living standards draw millions of migrants into cities ,while for many urban dwellers in the West the good life' is realised through suburbanisation or exurbanisa-tion. The condition of the urban environment can also affect the demographic structure of cities by influenc-ing the balance between rates of fertility and mortality Intraurban variations in health are pronounced in Third World cities where well above-average mortality rates are recorded in overcrowded squatter areas, but socio-spatial differences in health status are also characteristic of many Western cities.Demographic changes are related to other 'trigger factors such as economic growth or decline, and polit-ical change. For example, population growth in a Third World country may induce political attempts to restrict migration, whether within the country to control over urban isation or between countries, as along the Mexico-USA border.
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