Abstract
An extension of game theory to the two-person game involving collaboration. In a detailed discussion of a simple case, the author argues persuasively that his methods yield a strategy which is sensible, prudent and fair for both participants. One of the more interesting by-products is a method for comparing inter-personal preference scales, thus providing an answer to one of the standard objections to the Hedonistic calculus. Braithwaite's approach is novel, and should be of interest to game-theorists as well as philosophers.--A. R. A.