- First assumption is correct
- Second assumption is partially correct - traders scale based upon tech/civic progress, not number previously built. Settlers and builders increase in cost by +30 and +4 per unit constructed, respectively.
- Aqueducts, neighborhoods and Mbanzas all scale with tech/civic progress but don't factor into or receive district discounts.
The cost "models" are in the XML files (Units.xml and Districts.xml).
- Second assumption is partially correct - traders scale based upon tech/civic progress, not number previously built. Settlers and builders increase in cost by +30 and +4 per unit constructed, respectively.
- Aqueducts, neighborhoods and Mbanzas all scale with tech/civic progress but don't factor into or receive district discounts.
The cost "models" are in the XML files (Units.xml and Districts.xml).