In effect, charitable behavior “says” to our audiences, “I have more resources than I need to survive; I can give them away without worry. Thus I am a hearty, productive human specimen.” This is the same logic that underlies our tendency toward conspicuous consumption, conspicuous athleticism, and other fitness displays. All else being equal, we prefer our associates—whether friends, lovers, or leaders—to be well off. Not only does some of their status “rub off” on us, but it means they have more resources and energy to focus on our mutual interests. Those who are struggling to survive don’t
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