global city

Popularized by Dutch-American sociologist Saskia Sassen in The Global City: New York, London, Tokyo (1991).

global city (plural global cities)

1. (geography, urban studies) A city that serves as a primary node in the global economic network; a metropolis.
   • 2016, Simon Curtis, Global Cities and Global Order, Oxford University Press, →ISBN, page 4:

     Today's global cities have been empowered and transformed by the construction of a market economy at a global scale. In this sense, I would argue, the global city must be seen as primarily a political phenomenon.

• global order

• global city on Wikipedia.Wikipedia