How to generate gold cost-effectively playing as Mexico? (After natural resources dry up)
I play Mexico, and I have noticed that after natural resources dry up it becomes very difficult to efficiently generate gold even with factories or haciendas and all other cost-heavy gold upgrades excluding the imperial ones...we have to card gold generation in 1v1 to efficiently generate more gold incomes. I want to know how to efficiently gather gold without cards (because in 1v1 playing Mexico means one has to choose their cards more competently or cost-heavy gold generation upgrades).