Welcome to GiveWell’s podcast sharing the latest updates on our work. Tune in for conversations with GiveWell staff members discussing current priorities of our Research team and recent developments in the global health landscape.
GiveWell Conversations
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Welcome to GiveWell’s podcast sharing the latest updates on our work. Tune in for conversations with GiveWell staff members discussing current priorities of our Research team and recent developments in the global health landscape.
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Recent Episodes
June 4, 2026
Expanding Our Search for Cost-Effective Ways to Reduce Poverty
<p>In September 2025, we created a livelihoods research subteam to specifically focus on programs that increase the economic well-being of people in extreme poverty. While we have evaluated and funded livelihoods programs throughout GiveWell’s history, we now have a dedicated program officer overseeing this portfolio, which has allowed us to build on and deepen that work. </p><p>Historically, GiveWell has predominantly focused on health-related programs. Diseases like malaria, diarrhea, and pneumonia can be prevented fairly cheaply, and the evidence for health programs is often strong relative to other areas. As our research team has grown, we’ve been building capacity to explore programs that increase people’s incomes, where the long-term impact is often more challenging to measure and effectiveness differs from context to context. </p><p>In this episode, GiveWell co-founder and CEO Elie Hassenfeld speaks with Senior Program Officer Adam Salisbury about GiveWell’s expanding work on livelihoods programs, which programs might be the most cost-effective, and research we’re funding to help answer some key questions. </p><p>Elie and Adam discuss:</p><ul><li><strong>Testing variations of cash transfers:</strong> GiveDirectly’s flagship cash transfer program currently falls below our cost-effectiveness threshold for livelihoods interventions, but it has a proven ability to scale. We funded three pilots to test whether specific program adaptations could improve cost-effectiveness enough to meet our threshold: (1) pairing small grants to local businesses with household cash transfers so vendors can stock up to meet new demand, (2) timing cash transfers to coincide with the construction of a new footbridge so recipients can access markets more easily, and (3) targeting cash transfers to the poorest young adults, who may be at a stage in their lives where a large lump sum transfer might be especially impactful.</li><li><strong>Exploring poverty graduation programs:</strong> Poverty graduation programs provide extremely poor households with a tool to generate income, such as a sewing machine, along with training and small amounts of money or food so that families have what they need without selling the asset. Evidence shows that these programs increase incomes over the first couple of years, and more recent evidence suggests these effects can persist for five years or longer. We are considering grants for research to assess which program designs are most cost-effective, whether income increases hold up over even longer time periods, and whether the programs can be implemented effectively at scale. Because around two-thirds of poverty graduation programs are now delivered by governments rather than NGOs, we are also exploring opportunities to support these programs by providing technical assistance to governments. </li><li><strong>Funding research to address key uncertainties:</strong> By funding research directly tied to programs we are considering supporting, we aim to make better funding decisions and increase donors’ impact. For example, we had a consultant scrutinize the original data from a randomized controlled trial of GiveDirectly’s flagship program in Kenya that showed positive economic effects in the broader community—and the research held up. We’re now funding other research to assess whether the results can be generalized and considering studies to learn whether their effects persist beyond a few years.</li></ul><p><br>GiveWell is expanding our search for highly cost-effective ways to help people in new areas this year by hiring for new research positions, including a <a href="https://job-boards.greenhouse.io/givewell/jobs/5214767008">senior livelihoods researcher</a>. As the livelihoods team grows, we aim to evaluate more of the areas in the space, including expanding financial access, improving agricultural activity, and looking at humanitarian response efforts—to make better-informed decisions about where donor funding can do the most good.</p><p><br>Visit our<a href="https://www.givewell.org/all-grants-fund"> All Grants Fund</a> page to learn more about how you can support this work, and listen or<a href="https://givewell.transistor.fm/subscribe"> subscribe to our podcast</a> for our latest updates.</p><p><br>This episode was recorded on May 26, 2026 and represents our best understanding at that time.</p>
May 21, 2026
Podcast Episode 30: What a Decade of Iron Funding Has Taught Us
<p>Anemia, which is commonly caused by iron deficiency, can cause fatigue, cognitive impairment, and complications during pregnancy—and it affects roughly a quarter of the world’s population. Over the last decade, GiveWell has directed nearly $50 million to programs to address this health issue. </p><p>Because of the large number of people affected and the low cost to provide people with iron, we are evaluating additional iron fortification and supplementation programs to potentially increase our grantmaking in this area. At the same time, it has been difficult to determine exactly how much providing people with additional iron improves their lives. GiveWell’s growing research capacity is allowing us to study the programs we’ve funded and to support new research, then to use what we learn to continue improving our funding decisions.</p><p>In this episode, GiveWell co-founder and CEO Elie Hassenfeld speaks with Researcher Andrew Martin about GiveWell’s work on iron: why the evidence is more complicated than it might seem, what we’ve learned from years of funding iron programs, and what’s ahead.</p><p><br>Elie and Andrew discuss:</p><ul><li><strong>The evidence for iron:</strong> Anemia is a significant problem, but it can be hard to determine the exact magnitude of the benefit that comes from addressing it. In addition, current definitions of anemia, which can be caused by iron deficiency, are based on statistical data about typical hemoglobin levels rather than on people’s symptoms. GiveWell is supporting a <a href="https://www.givewell.org/research/grants/Walter-and-Eliza-Hall-Institute-of-Medical-Research-Grant-for-Iron-Repletion-RCT-January-2025">randomized controlled trial</a> in Bangladesh that aims to address this by measuring how providing additional iron affects perceived fatigue and other health outcomes—helping determine measurable thresholds at which people experience significant symptoms. We think the findings could reshape our understanding of how anemia affects people's lives and improve our anemia-related grantmaking.</li><li><strong>Looking back at Fortify Health’s progress:</strong> Fortify Health partners with wheat flour mills in India to fortify flour with iron and other micronutrients. After earlier <a href="https://www.givewell.org/research/incubation-grants/fortify-health/august-2019-grant">grants</a> to Fortify Health providing general support, GiveWell made a larger <a href="https://www.givewell.org/research/incubation-grants/Fortify-Health-expansion-December-2021">$8.2 million grant</a> in 2021. At the time GiveWell made this grant, Fortify Health was working with seven mills and reaching roughly 350,000 people per year. Over the next three years, it expanded to 125 open-market mills producing more than 30 times more flour (see chart below) at about half the cost per person reached of our original estimate. We now estimate that our 2021 grant was about twice as cost-effective as we initially projected. Based on this track record, we recently renewed our support to Fortify Health with a $10 million two-year grant.</li><li><strong>What’s next for GiveWell’s research into iron:</strong> GiveWell currently supports two iron programs in India: Fortify Health’s work expanding iron fortification of wheat flour and Evidence Action’s iron and folic acid supplementation program for schoolchildren. To date, GiveWell has not funded iron fortification or supplementation programs in Africa, despite the region’s high anemia burden, in part because of concerns about potential harm from iron interventions in high-malaria settings. To help expand our work in this area, we issued a <a href="https://blog.givewell.org/2026/03/02/givewell-launches-rfis-for-targeted-vaccination-outreach-in-three-countries-and-anemia-control-programs-in-africa/">request for information for iron programs</a> earlier this year—focusing on lower-malaria contexts—and are currently evaluating responses. We’re also considering support for historical research studying countries that have introduced fortification programs to help assess the long-term income effects of providing iron. <p></p></li></ul><p>GiveWell’s research on iron supplementation and fortification programs exemplifies this moment in GiveWell’s evolution: The research capacity and track record we’ve built are now enabling us to assess past grants, build and evaluate the evidence base, and expand our support of new cost-effective ways to help people in need.</p><p>Visit our<a href="https://www.givewell.org/all-grants-fund"> All Grants Fund</a> page to learn more about how you can support this work, and listen or<a href="https://givewell.transistor.fm/subscribe"> subscribe to our podcast</a> for our latest updates.</p><p>To learn more about how we’re learning and improving by analyzing past grants, like the one described in this episode, join our webinar on June 9. Elie will moderate a conversation with Program Directors Alex Cohen and Julie Faller about our grant lookbacks methodology, what we’ve learned, and how the findings are informing our grantmaking. <a href="https://events.zoom.us/ev/AuSIrbykuKHL-teUj0PIe0Gp_jui_DoZuNRGi7acruC1VnDGw4a0~As_dVgVQJ5Wv-r7kYqc2vkPr8eZSgQbkjpe2jd9L4cRrK92rLQk9qMRQUEPdySEs4PUHQC31d_s_laJfkKqObRPzDA">Learn more and register.</a></p><p><br>This episode was recorded on May 15, 2026 and represents our best understanding at that time.</p>
May 14, 2026
Behind the Analysis: Assessing Past Malaria Nets Grants
<p>GiveWell’s research doesn’t end once we’ve made a grant. We evaluate a subset of completed grants, comparing what we thought would happen to what actually took place, then try to use what we learn to improve our future funding decisions. Over the past year, we’ve formalized and expanded this work, publishing comprehensive “lookbacks” for select grants.</p><p><br>A recent lookback on grants GiveWell made to fund insecticide-treated net distributions supported by the Against Malaria Foundation (AMF) in the Democratic Republic of Congo (DRC) illustrates the growing capacity of GiveWell’s research team. We drew on multiple independent data sources, funded qualitative interviews to gather more information, and conducted a novel empirical analysis to deepen our confidence.</p><p>In this episode, based on a conversation originally aired on GiveWell’s internal podcast for staff<a href="https://docs.google.com/document/d/1-fZg2GTKVkvvPieJOacm2lmmOXyqpP9jm_hRA-cndbA/edit?tab=t.0#heading=h.8rm1y4q5a139">*</a>, GiveWell’s co-founder and CEO Elie Hassenfeld provides additional context while GiveWell’s Chief Research and Program Officer Teryn Mattox dives deep into the details with Program Director Alex Cohen and Researcher Steven Brownstone, examining how we conducted the lookback, what we found, and how what we learned may shape our future nets grantmaking. </p><p><br>Elie, Teryn, Alex, and Steven discuss:</p><ul><li><strong>A more expansive and rigorous approach to evaluating past grants.</strong> This lookback draws on three independent quantitative sources—AMF’s monitoring data, a recent Demographic and Health Survey (DHS) conducted in the DRC, and an original survey commissioned by GiveWell—alongside qualitative research involving in-depth interviews with people involved in DRC’s net distribution system, from health zone administrators to village focus groups. </li><li><strong>Conducting a novel mortality analysis using DHS microdata.</strong> Because net campaigns roll out on staggered schedules across DRC’s provinces, we were able to use the timing of children’s births relative to the date of local net campaigns as a natural experiment. We compared mortality risk for children based on when they were born, and thus the length of time they had protection from a net, and found that the net campaigns reduced the risk of death by around a quarter. That finding provides additional support for the mortality effect estimate we use in our cost-effectiveness models.</li><li><strong>What qualitative research revealed.</strong> Interviewers asked people across five provinces in DRC whether households received nets and whether households were using nets—and in cases where they either didn’t receive nets or weren’t using them, why not. Although we heard some anecdotes of misuse or diversion of nets, the data suggested overall that the nets are highly valued by the communities receiving them. </li><li><strong>How durability data could inform campaign design</strong>. Our analysis of DHS data confirmed earlier research indicating that nets in DRC degrade before they are replaced through new distributions. As a result, it’s possible that changes in DRC like more frequent campaigns or increased support of routine net distribution through other channels may increase protection. </li></ul><p><br></p><p>If you’re interested in learning more about grant lookbacks like this one—and how they’re improving our research and shaping our future funding decisions—we invite you to join our next webinar on June 9. Alex Cohen, who was featured in this episode, and Program Director Julie Faller will walk through our lookback process, what we’re learning, and how we’re applying those lessons to help more people. Learn more and register <a href="https://events.zoom.us/ev/AuSIrbykuKHL-teUj0PIe0Gp_jui_DoZuNRGi7acruC1VnDGw4a0~AgDx7CkfisUuffpSSL7A16lIu4P5vZ1GWyqqZoGLzuSzNv6hF18YIB8HxDgqp85d8lrzfkp0FONz1S_Hs3A0_ydpjw">here</a>.</p><p><br>This episode was recorded on April 22, 2026 and represents our best understanding at that time.<br>--<br><br></p><p><strong>Glossary</strong></p><p>Because the conversation in this episode first aired as part of GiveWell’s internal podcast for staff, there are a number of names, acronyms, and other terms that are not explained. To make it easier to follow along, we’ve provided a glossary below. </p><ul><li><strong>all-cause mortality</strong>. All-cause mortality measures the total number of deaths from any cause in a specific group of people over a specific period of time. </li><li><strong>AMF.</strong> The <a href="https://www.givewell.org/charities/amf">Against Malaria Foundation</a>, one of GiveWell’s <a href="https://www.givewell.org/charities/top-charities">Top Charities</a>, collaborates with national malaria programs and other partner organizations in low- and middle-income countries to distribute insecticide-treated nets. </li><li><strong>CEA.</strong> We build <a href="https://www.givewell.org/how-we-work/our-criteria/cost-effectiveness/cost-effectiveness-models">cost-effectiveness analyses</a> to assess how much good can be achieved by giving money to a certain program. </li><li><strong>Cox proportional hazards model</strong>. The Cox <a href="https://en.wikipedia.org/wiki/Proportional_hazards_model">proportional hazards model</a> is used to estimate how much different factors, such as time since an insecticide-treated net campaign, speed up or slow down the time to death. It assigns each factor a “hazard ratio,” which is a multiplier of the baseline risk of dying: a hazard ratio of 2 for smoking means that smokers face double the risk of death at any given moment compared to nonsmokers, all else equal. </li><li><strong>DHS.</strong> <a href="https://blog.givewell.org/2025/08/21/podcast-episode-10-the-fragile-foundations-of-global-health-data/">Demographic and Health Surveys</a> are vast, in-person surveys that ask women to recall their children’s birth and survival histories. This method provides the primary data for mortality estimates in low- and middle-income countries.</li><li><strong>funging</strong>. What we call “<a href="https://blog.givewell.org/2024/06/21/the-fungibility-question/">funging</a>” (from fungibility) refers to the effect of crowding out funding that would have otherwise come from other sources. </li><li><strong>insecticide-treated nets</strong>. These nets have been treated with insecticide to deter and kill the mosquitoes that transmit malaria. Distributing <a href="https://www.givewell.org/international/technical/programs/insecticide-treated-nets">insecticide-treated nets</a>, which are then hung over sleeping spaces, can be a cost-effective way of preventing malaria.</li><li><strong>lookbacks.</strong> Lookbacks are reviews of past grants published on the GiveWell website that assess how well they’ve met our initial estimates and what we can learn from them.</li><li><strong>Marakuja</strong>. <a href="https://marakuja.org/">Marakuja Kivu Research</a> is a nonprofit organization in DRC that we have contracted with to conduct quantitative and qualitative surveys. </li><li><strong>M&E.</strong> GiveWell asks organizations that we fund to share detailed monitoring and evaluation data on their programs to assess the quality of program implementation and whether it is reaching recipients as intended. </li><li><strong>net durability</strong>. Insecticide-treated <a href="https://www.givewell.org/international/technical/programs/insecticide-treated-nets#How_long_does_each_net_provide_protection">nets decay over time</a>, both through loss of insecticide and physical wear.</li><li><strong>nets team</strong>. In internal conversations, this is what we sometimes call our vector control team (see below for definition). </li><li><strong>OnFrontiers</strong>. <a href="https://www.onfrontiers.com/">OnFr...</a></li></ul>
31 total episodes available
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