Candles and Supply & Demand

The trade v1 history was far clearer for my purposes.   And creating orders at hub A visible from town B based on prices at hub C only visible from town D is a major pain.  If trader costs are per account, why is their management including visibility per town?  After all I can switch from B to D and back dozens of times, but unlike switching sov level 2 structures there's no fun factor in this click fest.      

Price history seems to be calculated by region, as shown on the charts starting this thread that are marked "Market Day Start/End for Middle Kingdom".  I don't think any market history data is presented by hub.

From my "trader town", I can see price history in any region where I have a trader in any hub in that region or the region where the trader's home town is.  When I'm looking at the market history I just have to switch to a Location (from the dropdown in the upper right) in the other region that I wish to see market history for.  No history data seems to be compiled globally anymore.

If you are creating orders in Wolgast based on prices you see from a town in Arran I'm not sure why you're doing that.  You might be trying to sell something in Wolgast based on a purchase price in Arran but that's a matter of tracking your own transactions and I think that screen (Transaction Log) sucks for that purpose.  That screen seems to be there to track transactions in a database which is not exactly the same as sales transactions.  It might be difficult to check prices in two different regions when you don't maintain traders in both regions because it's sort of an awkward thing to be doing (that's what the ABCD example breaks down into).  Are you actually doing that or was that just a convoluted example to demonstrate how difficult it would be?

Trader maintenance costs are not per account, they are charged to the town that created the trader.  There is also the need for a Guild in the specific town that created the trader.  If you want to post buy and sell offers you need a Trade Office in the specific town that created the trader.  Trader build costs are per player (or account) but just because some costs are per player doesn't mean all trader maintenance isn't tied to a specific city.  So I don't know if that really answers the question of why trader management (including visibility) is tied to a town but there is some consistency with that idea.