Is that an important distinction? Near as I can tell the main differences are, - It's probably easier for merchants to sell in a marketplace than through a ret

Is that an important distinction? Near as I can tell the main differences are, - It's probably easier for merchants to sell in a marketplace than through a retailer, and - Suppliers probably get paid by retailers earlier than they get paid by marketplaces. Though neither point is necessarily true, and I'm not really sure there's a hard distinction to be made, and I'm not convinced any difference is morally important here. I could be wrong on any of those points though, and would be glad to hear why if I am.