Quote Originally Posted by Ludens
-The higher levels of ports still have more fleets than the game allows (a city cannot have more than three sea-trading partners).

right, they can´t have more than 3 export partners....(or at least no more than 3 are shown)
but anyway this add to trade income.
perhaps the additional trade routes "encourages" other cities to create a trade route beyond their harbor capacities.

example might be the "Coastal Clearing"....it has no harbour value at all, but it can recieve a import trade route.


perhaps the wise men at EB hq will tell us how these things work.