PhilGoetz comments on Average utilitarianism must be correct? - Less Wrong

2 Post author: PhilGoetz 06 April 2009 05:10PM

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Comment author: PhilGoetz 06 April 2009 08:57:46PM 0 points [-]

The reason why an inequitable distribution of money is problematic is that money has diminishing marginal utility; so if a millionaire gives $1000 to a poor person, the poor person gains more than the millionaire loses.

That's why I said "utility" instead of "money".

Comment author: ciphergoth 06 April 2009 10:24:43PM 2 points [-]

Er, I know, I'm contrasting money and utility. Could you expand a little more on what you're trying to say about my point?

Comment author: PhilGoetz 06 April 2009 10:31:20PM *  1 point [-]

The term "utility" means that I'm taking diminishing marginal returns into account.

My instincts are confused on the point, but my impression is that most people find average utilitarianism reprehensible.

Comment author: dclayh 06 April 2009 10:57:07PM 3 points [-]

Perhaps it would help if you gave a specific example of an action that (a) follows from average utilitarianism as you understand it, and (b) you believe most people would find reprehensible?

Comment author: Nick_Tarleton 06 April 2009 11:12:40PM 4 points [-]

The standard answer is killing a person with below-average well-being*, assuming no further consequences follow from this. This assumes dying has zero disutility, however.

See comments on For The People Who Are Still Alive for lots of related discussion.

*The term "experienced utility" seems to be producing a lot of confusion. Utility is a decision-theoretic construction only. Humans, as is, don't have utility functions.

Comment author: CarlShulman 07 April 2009 02:23:29AM 3 points [-]

It also involves maximizing average instantaneous welfare, rather than the average of whole-life satisfaction.

Comment author: ciphergoth 06 April 2009 11:24:08PM 1 point [-]

Yes, I'm surprised that it's average rather than total utility is being measured. All other things being equal, twice as many people is twice as good to me.