Would this mean that all roads become toll roads?
Not necessarily. Back when Brooklyn developed, private developers built roads and provided trolleys as an incentive for people to move out there. Many homes have driveways, which could be considered private roads.
Only one highway exists between my town and my nearest city. Won’t the owner of this highway then have a virtual monopoly and be able to charge as much as he likes?
But hey, why did you move there in the first place? Either there was not a road to your town until this guy came around, or he had bought up all the existing roads. If there was no road to begin with, you wouldn’t have moved there. And if for some reason you had already lived there, the new road, however expensive, is better than no road.
What about if someone bought the only existing road and wanted to screw you? There’s a few ways this could go , but abuse of the monopoly will only hurt the operator. First, people in your town would use the road less often, leading to lower revenues. Second, people may just leave your town, leaving the road operator with a worthless road. Third, someone else would acquire land to build a competing road, thus ending the monopoly.
There would only be a few rational reasons for the road owner to not want as much traffic as possible. One reason for it is that the road owner sees a more optimal use for the land the road sits on. If so, he could destroy the road and use the land more optimally. Sorry… Nonetheless, it is unlikely for the owner of a huge piece of land not to provide at least the bare minimum of a roadway, especially if your town is sizable and would provide a decent revenue.
What if the owner of a major highway wanted to prevent some arbitrary group, say, Norwegians, from using the highway, and felt so strongly that he went to great lengths to make sure no Norwegians drove on his road?
This would be a very expensive way to stick it to the Norwegians. I don’t think the investors would be too happy to forgo the income from the potential Norwegian costumers. Most likely, the situation would be similar to the town situation. People would move away, and competition that allows Norwegians succeed. The first example that comes to mind are the law schools that grew rapidly as a result of major law schools not allowing Jews…
What is to stop someone buying up the roads that surround my house and decides that I cannot go on it? Am I a prisoner in my own home?
It becomes an issue if you can no longer use your property because someone bought all the property that surrounds your home, you cannot come or go. Walter Block calls this forestalling. It is a violation of property rights, and would not be permissible in a libertarian society.
Block does however believe that property rights do not extend infinitely up and down over the footprint. He argues that you would have the right to tunnel under or bridge over the property. I am not convinced by this, because I should be able to own the space above and below my property, even if I am not using it productively.
I don’t know exactly the best way to confront forestalling. A state could prohibit it, but without a state I’m not sure. I would imagine the land owner would have to provide an easement (as someone mentioned).
I hope this helps.
Adam
Market Urbanism