Couple points about charity and lighthouses:
Lighthouses:
Dewey, your question about who owns what would depend a great deal on whether the lighthouse existed already and was later privatized or was built from scratch under a libertarian system. Under the latter, a collective of people who use the waterways would finance the lighthouse themselves (out of their own pocket or via debt/equity). While some economists object to “Crusoeian Economics,” it’s nevertheless a great method for beginning thought experiments. Imagine a newly formed libertarian society that lives by the shoreline. One man decides he can make money fishing and just goes out in his boat everyday and fishes. Then he decides fishing will be more efficient if he can build a dock. He asks other people in the community if they would benefit from the use of a dock. Those people that would like to use a dock would form a collective. Or the fisherman could pay for it out of his own pocket. Or the fisherman could approach people with excess cash and say they can have 10% of his profits if they finance the dock. Or he could barter with a carpenter. A dock is easy because the owner can govern it’s use. Let’s say the demand for fish is so great that the fisherman decides that if he fished at night he could make even more money. Everyone else in the community says “Oh yea well I’ll never use the lighthouse, I don’t need it and won’t finance it.” If the fisherman owns the dock he can charge fee’s for any boats that enter/leave the dock at night. The lighthouse could be financed like everything else - on the expectation of future earnings. While the dock owner might not be able to get up a collective, he could finance the lighthouse himself or like everyone else does: Sells off future earnings ala stock/bonds/loans. Anyone who wanted to use the dock at nighttime would pay a surcharge that would effectively pay off the financing. As would the extra cash generated by night time fishing that made it in the fisherman’s best interests to build the dock in the first place. You don’t charge for the use of the light. You charge for use of the dock.
Charity:
It’s important to remember that many of us feel (perhaps unconciously) that it’s the governments problem to deal with those who can’t take care of themselves. We have someone to blame. Under a libertarian non-government, we would tend to place more responsibility on ourselves. At least I know I would. There would also be private unemployment insurance.