Trade Sphere

[T.j. Arnold]

What determines what CoT a province is in? I can visually tell that it's usually (of course) deals with how close a province is, but there's occasionally a random province that is part of a CoT rather far away. Sometimes, provinces seem to naturally shift, as well, so it'd be nice to know what determines this.

 

[Hakomar]

One reason for faraway provinces being part of a CoT might be due to a trade league deal, i.e. Venice doing a deal with x nation for iron producing provinces, all iron producing provinces then contribute to the Venetian CoT.

 

[vitek69]

I'd appreciate a clarification on this too. In my last WholeWorld mod game some random provinces in Europe (like Orleans and Athens I remember for sure) were trading through Fars in Persia... (Persia was a theocracy no so trade rights deal for sure)

 

[Kurblius]

Culture, religion, and relations also influences which CoT a province trades through. Trade range also expands from a CoT over time. For Orleans to trade through Fars is very strange though, I'd say that's a bug.

 

[T.j. Arnold]

Is there an exact formula, or is it all just variable?

 

[brifbates]

Is there an exact formula, or is it all just variable?

There is a formula "under the hood" that includes all of the following elements (and possibly more) in no particular order:

travel distance from province to CoT
religion of province and CoT
culture of province and CoT
mercantalism rating of province owner and CoT
is CoT owned by a trade league
is Cot owned by province owner
number of provinces trading in the CoT
trade rights agreements
is CoT owner embargoing province owner (or vice versa)

At least, in my experience, changing these factors has resulted in a province changing the CoT it trades in.