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23. Ethics / B. Contract Ethics / 6. Game Theory

[analysis and maths of relationship strategies]

3 ideas
Game theory misses out the motivation arising from the impersonal standpoint [Nagel]
     Full Idea: I do not favour the route taken by Hobbes's modern descendants, using game theory, since I believe the impersonal standpoint makes an essential contribution to individual motivation which must be addressed by any ethically acceptable theory.
     From: Thomas Nagel (Equality and Partiality [1991], Ch.4)
     A reaction: The assumption of self-seeking at the core of game theory seems very bizarre, and leads to moral approval of free riders. Nagel offers the best response, which is the Kantian impersonal view. Nagel may be optimistic about motivation, though.
Formal game theory is about maximising or minimising numbers in tables [Poundstone]
     Full Idea: At the most abstract level, game theory is about tables with numbers in them - numbers that entities are are efficiently acting to maximise or minimise.
     From: William Poundstone (Prisoner's Dilemma [1992], 03 'Curve')
     A reaction: A brilliant idea. The question is the extent to which real life conforms to the numberical tables. The assumption that everyone is entirely self-seeking is blatantly false. Numbers like money have diminishing marginal utility.
The minimax theorem says a perfect game of opposed people always has a rational solution [Poundstone]
     Full Idea: The minimax theorem says that there is always a rational solution to a precisely defined conflict between two people whose interests are completely opposite.
     From: William Poundstone (Prisoner's Dilemma [1992], 03 'Minimax')
     A reaction: This is Von Neumann's founding theorem of game theory. It concerns maximising minimums, and minimising maximums. Crucially, I would say that it virtually never occurs that two people have completely opposite interests. There is a common good.