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Geography Optional 300+ Score Pack · Model answer

Small number of mega-cities are playing a key role in organization of global economics and culture. Explain.

  • UPSC 2021
  • Economic Geography

A megacity is a purely demographic category — an agglomeration above 10 million; the UN counts 33 in 2025 (19 in Asia), rising to 37 by 2050.

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What the full answer covers

  • Dispersal of Production, Concentration of Command
  • Advanced Producer Services and Agglomeration
  • Basing Points in the Space of Flows
  • Cultural Command and Downward Diffusion
  • Size Without Power, Power With Inequality

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