 It is perhaps no surprise that the renaissance in contemporary contact theory occurred at the same time as game-theoretic tools and especially bargaining theory began to be applied to philosophical problems. Bargaining theory, as it was developed by John Nash (1950) and John Harsanyi (1977) is a rigorous approach to modeling how rational individuals would agree to divide some good or surplus. In its most general form, the bargaining model of agreement specifies some set of individuals who have individual utility functions that can be represented in relation to one other without requiring interpersonal comparisons of utility directly. Some surplus is specified and if the individuals involved can agree on how to divide the good in question, they will get that division. If, however, they cannot agree they will instead get their disagreement result. This may be what they brought to the table or it could be some other specified amount. One example is a simple demand game where two people must write down how much of given pot of money they want. If the two “bids” amount to equal or less than the pot, each will get what he or she wrote down, otherwise each will get nothing.