Basically yes, but it's complex and only just got added in this update so the dust hasn't settled yet. When you hit a certain point in the campaign, you have to choose one of two factions. One of them is the Merchant's Guild which means you have access to trading, and the other is Circle of Fortune which means you can't trade but get stuff to help you play self found, like better drop rates and prophecies which help you force specific items to drop deterministically. It's brand new, I'm playing self found and haven't got far in the game in this update yet, but the trading is gold based rather than the PoE system, and items can only be traded once so there won't be item brokering like PoE. I think the trading community hasn't taken off yet because of the servers, who knows how it will balance out once the community swarms over it, and who knows how devs will tweak or update the system going forward.

Interestingly players from both factions can play together in coop because loot is instanced. It's a pretty bold / surprising solution but the devs have been trying to keep everyone happy. Lots of people wanted to avoid self found drops being shit because you are expected to trade, and lots of people love trading and couldn't live without it.

Edit: Here is some info