Basic question, is importing grain worth the negative trade income for a higher population. There's already a lot of building that eat into your tax income such as the walls, temples, and health buildings. My economy does just fine as it now without importing grain besides one or two cities where I did it just to grow them faster.

I mean this in a purely monetary manner. Does Grain Import = More Money [If i then say set taxes to very high]

And then I also mean it in a utility manner. If it doesn't make more money, why would I want to do this.