I've been thinking for awhile now how cool it would be for a country like the U.S to have a public sovereign wealth fund. There are certain industries where the typical free-market enterprise just doesn't work (such as essential healthcare, infrastructure, food, maybe housing, etc.) Perhaps there could be some kind of public option business that competes in the market with fair prices and an idealized model of doing business.

Would you mind answering their questions here? I'm interested to see your thoughts as well.