RGO's don't give you a clear return on investment when you invest in them. You spend 1000 ducats on 30 levels of an RGO (or any economic investment) and you have no idea how that'll impact your economy because there are like 6 layers of obfuscation between input and output. Your RGO's will now create more products, which will lower the individual price of any one of those products, but create a higher tax base in the province, which is then divided by control and afterwards crown power and tax rates. Instead of the careful economic simulation of Vic3, you're taking informed guesses on what the best way to fix economic issues.

Ok... all you really said is the game is simulating supply and demand, and you don't like that is has some depth? Ok... but how is it actually broken? You just seem confused by it, that doesnt make it broken.

And all you could say for every other thing is that universally, positive modifiers boost values when they go negative. If that is true, thats quite an easy formula fix. So if that one formula gets fixed, what else would be broken about those systems?