Incidentially, while I was thinking about what to do with the new communal buildings in the plaza area, I thought that perhaps we could turn one of their rooms into a Stock Exchange.
There could be a chest for every player who is interested in taking part - or perhaps even 2 chests per player, one for "offering" and one for "asking". We could also place a writable book there, where players can write down if they need something particular of want something in return for their offerings (e.g. "2 stacks of iron for 3 stacks of glass" or "surplus of sand free for taking").
What do you think?
Ja mata, TosaInu