> even though Russia's GDP is merely of Guangzhou's

Am I missing something? [1] lists Guangzhou’s GDP as 435,746 M USD, while [2] lists Russia’s GDP as 2,173,836 M USD.

[1] https://en.wikipedia.org/wiki/List_of_top_Chinese_cities_by_...

[2] https://en.wikipedia.org/wiki/List_of_countries_by_GDP_(nomi...