The age distribution of GiveWell recommended charities

Summary: GiveWell's list of top and standout charities is identical to that of 2014, although with special emphasis on the Against Malaria Foundation. Giving What We Can's recommendations have been static for several years. To estimate what rate of churn we should expect, I examine the age distribution of GiveWell (and Giving What We Can) recommended charities. For top international aid charities, typical age is a decade or less, possibly a result of focus on smaller organizations narrowly focused on interventions with recent funding gaps. 

How immigration could make AMF more cost-effective

Summary: charities that save the lives of the global poor have more economic impact than one might think because a portion of the very poor may emigrate to other countries and enormously increase their productivity, and this portion may greatly increase if some developed countries open their borders.