Economy type "(G)" ?

[TJJ]

These all make sense;

(A)griculture
(I)ndustrial
(T)echnology
(B)iological
(E)nergy

And I'm assuming;

(V)onari

However I can't come up with any economy types for which (G) might be a meaningful abbreviation?

Any suggestions?

[Capt_Caveman]

(G) = general

[TJJ]

Ah, obvious really