I didn't like the economics of HoI, because I couldn't direct my trade at all. After all, wouldn't pre-war France have refused to sell rubber to Germany if it were as important in real life as in HoI?
I suggest a way to make most-favoured trading partners, or perhaps a chance to tax trade with different nation independently. A chance to tell precisely what you want trade against what with whom makes interesting strategic options.
For instance: I as Britain want to crush Russia in Persia. To fight a war I need resources and allies, so I trade steel and lumber from Sweden, selling armaments back and creating an alliance against Russia. At the same time i would prevent the Dutch from industrializing with Swedish ore.
I suggest a way to make most-favoured trading partners, or perhaps a chance to tax trade with different nation independently. A chance to tell precisely what you want trade against what with whom makes interesting strategic options.
For instance: I as Britain want to crush Russia in Persia. To fight a war I need resources and allies, so I trade steel and lumber from Sweden, selling armaments back and creating an alliance against Russia. At the same time i would prevent the Dutch from industrializing with Swedish ore.