> You can house, at most, the number of people you build homes for. The more homes you build, the more people can afford to live in your city. One problem is s

> You can house, at most, the number of people you build homes for. The more homes you build, the more people can afford to live in your city. One problem is some people owning multiple homes and blocking them from long-term use by making those buildings short-term/vacation rentals. This is where regulation makes sense to me, and one of the many purposes a central government can serve. This is assuming a government (of people) that cares about the well-being of all inhabitants.