I'm not sure how to get this system to work better, I'm not an mmo economy expert. But, the fact that a product is produced by a harbor, in this case, Fir Logs or Stone blocks (for around 40-80 and 11-15 gold respectively), and are both needed in Every ship build, and are each bought completely out of every harbor (I've personally checked 12 every time), and if your are "lucky" they are put back on sale for 200-500 gold a piece.....
That system in play seams broken.
The fact that 1 player (not saying there is only one), with a hundred thousand (very easy to get with missions paying out 11-20k a piece now) can buy ALL of a base material to crafts ships, affecting 900+ people.....
Something I feel needs to change.
Maybe Ports/Harbors can have Infinite Resources, it's just the price goes up when players buy, but goes back down as the Port produces or players sell to Port.