Against pvn, part 2

[bobman0330]

One of the fundamental premises of anarcho-capitalism is that the free market can efficiently provide public goods such as military defense or police.

Take a hypothetical, typical citizen in a town threatened by gang activity. He would be willing to pay $100 to prevent the town being taken over by gangs. A local entrepreneur projects that a total of $50/citizen has to be raised for his new free-market police force to secure the town from the gangs. Sounds good. But then our hypothetical citizen realizes that he can contribute nothing, and his fellow citizens will be forced to pony up an extra dollar or two to cover for him. Then his neighbor realizes this, and so on, and so on.

Thoughts?