![]() ![]() In the Wikipedia map that illustrates the “global cities” article (reposted here), the higher levels are poorly differentiated, making hard to tell an alpha+ ranking from a beta+, let alone an alpha. The GaWC rankings often appears in Wikipedia articles-the one on Wellington, NZ, for example, notes its status as a gamma-level global city. New versions of this ranking system continue to appear the Wikipedia map posted here shows the 2010 account. The Wikipedia article in question pays particular attention to the scheme developed initially in 1998 by the World Cities Study Group and published in GaWC Research Bulletin 5, which ranks cities from “Alpha++” (London and New York) down through “Gamma-” (which includes the likes of Muscat, Ljubljana, and Guayaquil). ![]() Geocurrents' Martin Lewis takes a look at the nebulous problematic question of how to rank a "global city", taking as a starting point the relevant Wikipedia article which refers to no less than five different systems which each produce substantially different results away from the topmost tier.
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