Commerce Improvements Overview[]
Requires power to function.
Commerce Improvements increase the Commerce percentage in a city, increasing the amount of money your citizens make also increasing how much you earn off of taxes.
The International Trade Center increases the cap by 15% in all cities in your nation allowing you to further increase the income via taxes. Although not in the category, when built Subways boost Commerce by 8%.
Supermarkets[]
- Effect: +3% Commerce
- Construction Cost: $5,000
- Operational Costs: $600 per day ($50/turn)
- Pollution: None
- Limit: 6
Banks[]
- Effect: +5% Commerce
- Construction Cost: $15,000 + 5 steel
+ 10 aluminum 
- Operational Costs: $1,800 per day ($150/turn)
- Pollution: None
- Limit: 5
Shopping Mall[]
- Effect: +9% Commerce
- Construction Cost: $45,000 + 20 steel + 25 aluminum
- Operational Costs: $5,400 per day ($450/turn)
- Pollution: +2 points
- Limit: 4
Stadiums[]
- Effect: +12% Commerce
- Construction Cost: $100,000 + 40 steel + 50 aluminum
- Operational Costs: $12,150 per day ($1013/turn)
- Pollution: +5 points
- Limit: 3