What difficulty are you playing on?
What map size?
How many opponents?

What exactly do you mean by economics strategy? Do you mean never going negative? Do you mean a strategy which mostly substitudes manufacturing by rushing buildings?

I dont get people that have issues economicly with this game. The model is far from broken.

Do you build Eco starbases, 4+ per system?

Do you create Trade routes?

Do you make wealth planets?

Do you get Tourism?

Its even easier now wiith the Promthieum Refinery, +8 cr, do you build them?

I have been playing on "immense galaxy", normal difficulty 6 opponents". I have been doing some of these things named above but not all of them at the same time. The Promtheium Refinery seems to be a must have. I have noticed that on the immense setting you cannot trade until later in the game because you are normally to far from your any neighbors, which can be fortunate thing if they are very hostile. Thanks for the info, I will apply it.

i agree the economic system is broken after a couple of wealth techs and money making planets your wealth production just snowballs about the only thing i can do to keep from maxing it out is mass upgrading ships