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apophenia comments on What topics would you like to see more of on LessWrong? - Less Wrong Discussion

25 Post author: Emile 13 December 2010 04:20PM

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Comment author: apophenia 07 August 2011 10:08:53AM 1 point [-]

I've studied game theory and rationality, and I don't use game theory even when applying rationality to game design! I've used some of the nontechnical results (threats, from Shelling's book) to negotiate and precommit but that's about it. Has someone else used game theory in real life?

Unless someone else responds to this comment, my guess is that this topic is of greater interest to readers than it is of any use.

Comment author: satt 07 August 2011 09:30:50PM *  2 points [-]

I'm reading Tom Slee's book No One Makes You Shop at Wal-Mart, and it applies game theory to some dressed-up toy examples (prisoner's dilemma, coordination games, etc.) to demonstrate why agents making individual decisions to maximize their utility (representing consumers using the power of individual choices) can fail to maximize their total utility (representing the failure of individual consumer choice to secure optimal outcomes for consumers).

[Edit: I should note that Slee's book isn't very technical, so maybe it's more evidence against needing the full-blown mathematical machinery of game theory? I'm about 100 pages in and it hasn't gotten much more hardcore than tabulating the results of games in a payoff matrix and an informal explanation of Nash equilibrium.]

Comment author: [deleted] 07 August 2011 10:16:37PM 1 point [-]

I should note that Slee's book isn't very technical, so maybe it's more evidence against needing the full-blown mathematical machinery of game theory?

The machinery is still there, even if you can't see it.

Comment author: satt 08 August 2011 01:21:13AM 1 point [-]

Good point. What I mean is that lots of readers could still get some mileage out of game theory without having to know the rigorous mathematics underlying it (although as you say the mathematics is still there even if someone doesn't know it's there). For example, I don't need to know how to use a fixed point theorem to prove the existence of Nash equilibria for all finite games to be aware of why the prisoner's dilemma is a sticky situation.