Dr Eva Vivalt
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- 80,000 Hours1h 36m
A year's worth of education for under $1 and other "best buys" in development | Rachel Glennerster
Rachel Glennerster, Dr Eva Vivalt, Keiran Harris, Rob Wiblin, Nathan Labenz
Rachel Glenister, Chief Economist at the UK's Department for International Development, outlines the evolution of development aid toward evidence-based policy while evaluating a family planning radio campaign in Burkina Faso. She argues that macroeconomic transformation yields superior poverty reduction compared to micro-interventions and critiques the overemphasis on unscalable social entrepreneurship and charter cities. Addressing methodological debates, Glenister contends that most variation in randomized control trial results stems from implementation quality rather than a lack of generalizable behavioral principles, urging a shift toward massive, scalable solutions that leverage cross-cutting economic insights.
- 80,000 Hours2h 2m
#30 - Dr Eva Vivalt on how little social science findings generalize from one study to another
Dr Eva Vivalt, Keiran Harris, Rob Wiblin
Y Combinator launched a $100 million, three-to-five-year randomized controlled trial providing $1,000 monthly to approximately 1,000 low-income young adults to analyze shifts in time use, health, and well-being while deliberately withholding results until the study's conclusion to prevent narrative distortion. This initiative is situated within a broader academic discourse highlighting the limited generalizability of development interventions and the prevalence of optimism bias among policymakers, who often neglect variance and negative results in favor of optimistic point estimates. Experts argue that despite these methodological challenges and academic incentives prioritizing novelty over synthesis, aggregated expert priors and robust RCTs remain essential for refining evidence-based policy and overcoming the "naturalistic heuristic" in emerging fields like clean meat adoption.