A more in depth economic system

[Lord SeaBorn]

I'm not sure is this is a topic somewhere on here but I digress, I would love to fly from system to system hauling goods in my good ole ZP but what incentive do I have to make credits hauling goods for only a small amount of profit. And given that some systems are ruled differently, one would think going into a democracy prices would be cheaper and goods flow more freely as compared to a dictatorship where goods would be heavily regulated driving the prices up. I guess what I'm getting at is give the merchant class the ability to buy the next bigger ship without having to trade my arms and legs for 10 years.