Demand

Demand

Demand is another factor that affects the rate at which buildings earn. Having an excess of one type of Building will negatively affect the other types. There must be a balance between the building types available so that not a single one will be labeled as "Low Demand" giving the buildings in the Low Demand category will make them yield 10% less earnings.

However this can be strategically manipulated to your advantage. It isn't much, but Building types in the "High Demand" get 10% increased earnings. You can essentially make 3 of the building types high demand by slowly adding in a single type that you aren't planning on giving the high demand status.