What is main cause for rapid growth of megacities?
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Show The impact of population change on the growth of mega-citiesP Guest. Asia Pac Popul J. 1994 Mar. AbstractPIP: The population dynamics of population growth in mega-cities and the contributions of migration to urban growth are described. The policy implications are identified as the need for a continued emphasis on fertility declines, because reductions will have a beneficial effect on reducing the pace of growth of mega-cities. The short-term goal of policy should be to provide urban contraceptive services to female migrants, who should be targeted specifically as a special group. Natural increase will be the main source of growth of mega-cities, and women who migrated during the 1990s will be a part of that natural increase. Reductions in population growth will make it easier for governments to provide services and to manage the large population size in mega-cities, which will continue to exist as long as economic activities are centralized and economic development promotes urbanization and spatial concentration. The emergence of mega-cities with populations of many millions has been a recent and increasing phenomena. The largest cities in 1980 were Tokyo with 16.9 million followed by New York City with 15.6 million. By 1990, the largest mega-cities were Mexico City with 20.2 million, Tokyo with 18.1 million, Sao Paulo with 17.4 million, and New York with 16.2 million. By the year 2000, the expectation is that Mexico City will have 25.6 million, Sao Paulo 22.1 million, Tokyo 19.0 million, Shanghai 17.0 million, and New York 16.8 million. The rankings will change, but the pattern clearly reflects the growth of mega-cities in developing countries. The age structure of urban populations is conducive to population growth. The main component of urban growth in Asia has been migration. Age structure changes have affected migration and will continue to affect fertility in mega-cities. Mega-cities will attract a young population because of the tourist and personnel services sectors which employ large numbers of young people, because of the demand for educated workers who tend to be younger, and because of enhanced opportunities for education. In Asia, economic policies encourage high levels of female labor force participation. Similar articles
MeSH termsSince 1950, the world’s urban population has risen almost six-fold Image: REUTERS/Issei Kato Stay up to date: Sustainable Development License and Republishing World Economic Forum articles may be republished in accordance with the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Public License, and in accordance with our Terms of Use. The views expressed in this article are those of the author alone and not the World Economic Forum. Global Agenda The Agenda WeeklyA weekly update of the most important issues driving the global agenda
What causes the rapid growth of cities?Migration
Many people are forced to move to urban areas in search of jobs, education, and housing. Inadequate funding and social infrastructure have also driven people to urban areas. In other cases, political, racial, economic, or religious conflicts have forced people to move to neighbor urban areas.
Where are the megacities growing fastest and why?The fastest-growing cities in the world, according to the UN, are Delhi, Shanghai, Dhaka, Kinshasa, Chongqing, Lahore, Bangalore, Lagos, Cairo and Beijing.
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