So, I have my main capital that has a bazaar in it. It is trading with four different adjacent cities. One of those cities has a copper pit in it and is also my city. Does my capital, with the bazaar, get additional income from "linking" the city with a copper pit to the other cities that I trade with.

It doesn't appear to, so I'm just wondering how that works. If not, do I need to build a bazaar in the city with the copper pit in order for it to trade that resource?