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They are ex-hedge-fund guys who wanted to apply quantitative methods to this very question.<p>Also, from a personal standpoint, I try to give in accordance with Peter Singer&#x27;s recommendations that you should help the worst off first (So things like Malaria Nets and de-worming). It&#x27;s easier to be sure you&#x27;re making things better if the money goes to treating a life-threatening disease that can be prevented for a few dollars a head.