Friday, September 23, 2011

Utilitarian Argument Against Polygamy

One reason to oppose polygamy is that spouses have a declining marginal utility, and it's best to set up a roughly egalitarian distribution. Your first spouse adds the most happiness to your life, but each additional spouse isn't going to add much more. Better for them to find other people. It's kind of like progressive income taxation, except that you do it pre-emptively instead of occasionally redistributing existing spouses, since that wouldn't work out very well.
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