Brigands, Trade and Taxes.

Well people, I really don't know if this is right, but through the campaign I'm playing, I noticed that in the regions where the taxt rate is high, I get Brigands a lot, while in regions where the tax rate is low, I never get any. Is their any link between Taxes and Brigands?

Now on another thing: Trade. Does a city trade to every other city (Land Trade) as long as it's connected to it by a road, even if the road passes through many other cities? And if yes, then, even if a road is blocked to a city, why isn't the trade done from another one, which links to the blockaded city through another road?

As for Brigands have a look in the ludus magna section of the forum.

As for trade, trade is only done with a neighboring city. Trade does'nt continue on through city after city. Ports are the only way to trade with distant cities