Interesting. This baselines the cost of one life to $2000 effectively. So I could trade two lives for a top of the line Macbook Pro. Buy an SF home for 500 lives. I spend one human life to live in SF every month. Huh.
https://www.givewell.org/charities/amf
You might also want to read this meta-discussion by GiveWell on such analyses:
https://blog.givewell.org/2011/08/18/why-we-cant-take-expect...