If you want good economic results, why should you care about the state of representative democracy in our republic?
Most mature democracies are wealthier on average than most non-democracies because of a competitive policy environment, more successful business innovation, more education, and more public goods. The net impact is that people are happier than they are elsewhere.
If you are interested in learning more about this and other connections to our system of government, please click on our short course.