Globalization and World Cities Research Network


The Globalization and World Cities Research Network, commonly abbreviated to GaWC, is a think tank that studies the relationships between world cities in the context of globalization. It is based in the geography department of Loughborough University in Leicestershire, United Kingdom. GaWC was founded by Peter J. Taylor in 1998. Together with Jon Beaverstock and Richard G. Smith, they create the GaWC's bi-annual categorization of world cities into "Alpha", "Beta" and "Gamma" tiers, based upon their international connectedness.

GaWC city classification

The GaWC examines cities worldwide to narrow them down to a roster of world cities, then ranks these based on their connectivity through four "advanced producer services": accountancy, advertising, banking/finance, and law. The GaWC inventory ranks city economics more heavily than political or cultural factors. Beyond the categories of "Alpha" world cities, "Beta" world cities and "Gamma" world cities, the GaWC cities include additional cities at "High sufficiency" and "Sufficiency" level.
The 2004 rankings added several new indicators while continuing to rank city economics more heavily than political or cultural factors. The 2008 roster, similar to the 1998 version, is sorted into categories of Alpha world cities, Beta world cities, Gamma world cities, and additional cities with High sufficiency or Sufficiency presence.

2018 city classification

The cities in the 2018 classification are as follows.

Alpha

Alpha level cities are linked to major economic states and regions and into the world economy, and are classified into four sections, Alpha ++, Alpha +, Alpha and Alpha − cities.

Alpha ++

Alpha ++ cities are cities most integrated with the global economy:
Alpha + cities are highly integrated cities, filling advanced service needs:
Beta level cities are cities that link moderate economic regions to the world economy and are classified in three sections, Beta +, Beta and Beta − cities.

Beta +

Gamma level cities are cities that link smaller economic regions into the world economy, and are classified into three sections, Gamma +, Gamma and Gamma − cities.

Gamma +

Sufficiency level cities are cities that have a sufficient degree of services so as not to be overtly dependent on world cities. This is sorted into High Sufficiency cities and Sufficiency cities.

High Sufficiency

The following cities were included in the 2016 edition, but not in the 2018 edition.
The cities in the 1998 classification are the following:

Alpha world cities (full service world cities)

In the 1998 data, numbers indicate world city-ness values ranging from 1 - 12.

12

9

6

Relatively strong evidence