Is there a modifier to increase global yields by 'X'%

[TheWaWPro]

I want to increase all gold yields by 50% is this possible?

 

[Machiavelli24]

Yes, you can use the modifier for the Colonial Taxes policy (that provides +25% Gold from non-home content cities) as a base. (modifierID: COLONIALTAXES_FOREIGNGOLD).