I would also advise that you copy from Wikipedia some of the basic criteria satisfied (only) by Shapley.

The black hole example may be the obvious one to a certain kind of mind, but one should perhaps point out that this is also a unique way of dividing value that could apply to e.g. a dynamically formed corporation with many internal projects in the absence of top-down management division, and that if you lacked this unique way of dividing value, such a distributed corporation might fail due to disputes over how to divide value in which every agent thinks of themselves as the "critical final ingredient" which creates most of the value and deserves most of the money.

I instantly promoted this post based on its obvious extreme importance, but given the current rating, you might need further exposition to get beyond the "obvious to Eliezer" level.