Primate city

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A primate city is a city that is the largest in its country, province, state, or region, and is disproportionately larger than any others in the urban hierarchy. A primate city distribution is a rank–size distribution that has one very large city with many much smaller cities and towns and no intermediate-sized urban centers, creating a statistical king effect. The law of the primate city was first proposed by the geographer Mark Jefferson in 1939. He defines a primate city as being "at least twice as large as the next largest city and more than twice as significant." Aside from size and population, a primate city will usually have precedence in all other aspects of its country's society such as economics, politics, culture, and education. Primate cities also serve as targets for the majority of a country or region's internal migration. In geography, the phenomenon of excessive concentration of population and development of the main city of a country or a region (often to the detriment...

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