The GiveWell Blog

How thin the reed? Generalizing from “Worms at Work”

Hookworm (AJC1/flickr) My last post explains why I largely trust the most famous school-based deworming experiment, in particular the report in Worms at Work about its long-term benefits. That post also gives background on the deworming debate, so please read it first. In this post, I’ll talk about the problem of generalization. If deworming in southern Busia… Read More

Why I mostly believe in Worms

The following statements are true: “GiveWell is a nonprofit dedicated to finding outstanding giving opportunities through in-depth analysis. Thousands of hours of research have gone into finding our top-ratepd charities.” GiveWell recommends four deworming charities as having outstanding expected value. Why? Hundreds of millions of kids harbor parasitic worms in their guts[1]. Treatment is safe,… Read More

Our updated top charities for giving season 2016

We have refreshed our top charity rankings and recommendations. We now have seven top charities: our four top charities from last year and three new additions. We have also added two new organizations to our list of charities that we think deserve special recognition (previously called “standout” charities). Instead of ranking organizations, we rank funding… Read More

Deworming might have huge impact, but might have close to zero impact

We try to communicate that there are risks involved with all of our top charity recommendations, and that none of our recommendations are a “sure thing.” Our recommendation of deworming programs (the Schistosomiasis Control Initiative and the Deworm the World Initiative), though, carries particularly significant risk (in the sense of possibly not doing much/any good,… Read More

Mid-year update to top charity recommendations

This post provides an update on what we’ve learned about our top charities in the first half of 2016. We continue to recommend all four of our top charities. Our recommendation for donors seeking to directly follow our advice remains the same: we recommend they give to the Against Malaria Foundation (AMF), which we believe… Read More

Our updated top charities for giving season 2015

We have refreshed our top charity rankings and recommendations. Our set of top charities and standouts is the same as last year’s, but we have introduced rankings and changed our recommended funding allocation, due to a variety of updates – particularly to our top charities’ room for more funding. In particular, we are recommending that… Read More