I've searched the forums and see this question answered both ways, so I wanted to create a topic on it specifically. I know that the length of a trade route affects income, and that the population of the worlds in question also has an effect, but does the economy of the planets in question matter? For example, would it make more sense to set up a trade route from a class 10 world with an econ capital and lots of markets or a class 15 world with high population but no econ buildings? (odd situation I know, but its a hypothetical). On the other side, does the economy of the foreign planet matter as well, or just their population?
I know in most cases the highest population worlds will also have the best economies, but I'm trying to figure out if its worth the extra effort of setting up my trade routs from my econ capital.