Ideas in Development

GiveDirectly started out as a small nimble team founded by PhD economists, who had a novel approach to ending poverty – just give cash. But they are no longer the new kids on the block, and have been scaling their operations rapidly in recent years, a trend that could intensify if the third wave of American philanthropy materialises.That’s a huge opportunity, but the potential of operating across entire countries is a radically different proposition. So what does an evidence-driven organisation research when it's trying to go from moving millions a year to billions?Caitlin Tulloch, Senior Director for Research, Learning and Product at GiveDirectly, joins Oliver Hanney for a wide-ranging conversation on cash transfers at scale. We cover running a research portfolio like the treasury, the macro forecasting work around a new Malawi project, the trade-off between fraud and reach, building a global emergency response capability, and the politics of putting a lot of cash into someone else's economy.Ideas in Development is a VoxDev podcast on economic policy and research. Find us wherever you get your podcasts, and read the full write-up on our Substack: https://ideasindevelopment.substack.com/

The ultra-poor graduation approach has one of the strongest evidence bases in development. Almost all of that evidence comes from NGO delivery – but true scale typically requires government delivery.Stephanie Brockerhoff, Director for Programme Design and Impact at BRAC's Ultra-Poor Graduation Initiative, joins Oliver Hanney to explain why anti-poverty pilots often fall apart at handover, how BRAC partners with governments, and the bottlenecks to scale that remain.Ideas in Development is a VoxDev podcast on economic policy and research. Find us wherever you get your podcasts, and read the full write-up on our Substack: https://ideasindevelopment.substack.com/

What should development economists be working on – and how does their work actually reach the people making decisions?Rachel Glennerster, President of the Center for Global Development, whose career spans the research and policy sides of development, joins Oliver Hanney to discuss her proposal for a radical simplification of aid, why she feels the micro-macro debate is largely a false one, the messy but vital process of building consensus, and what impactful careers look like in economics.In this wide-ranging conversation, we cover the Smart Buys evidence panels in education and how cross-disciplinary consensus gets built, her three-box framework for evidence-based policymaking, why AI tools move too fast for RCT-based procurement, and what it would take to fix development economics' concentration problem.Read the full show notes on the Ideas in Development Substack: https://ideasindevelopment.substack.com/ 

In 2022, Dean Karlan became Chief Economist at USAID, tasked with steering the world's largest bilateral aid agency towards evidence-backed approaches. He left in 2025, as the agency was being dismantled, having moved roughly $1.7 billion of funding in the process.In this episode of Ideas in Development, Dean joins Oliver Hanney to discuss what evidence-based policy actually looks like inside a government institution; how his team picked their battles; why collaboration beat prescription; and where the limits of taking goals as given lie. They also cover the rise of embedded evidence labs in countries like Rwanda and Peru, the synthesis and implementation gaps between academia and policy, and whether there are questions in development economics, like the impacts of cash transfers, on which we now have enough evidence.Dean Karlan is Professor of Economics and Finance at Northwestern University, founder of Innovations for Poverty Action, and former Chief Economist of USAID.Read the show notes on our Substack: https://ideasindevelopment.substack.com/

The conversation about evidence-based policy usually asks why good evidence isn't shaping decisions. But we should also be asking, is the evidence base itself actually worthy of shaping policy?In this episode of Ideas in Development, Rafe Meager – Associate Professor at the University of New South Wales and one of the leading meta-analysts in economics – explains why a single paper is not a proof, why we should learn to respect statistical noise, and why a result that holds in Kenya may or may not hold in Ghana.We walk through Rafe’s work aggregating microcredit RCTs, and their research with Noam Angrist and Youth Impact showing that how well a programme is implemented predicts how well it works. Often, the right question for policymakers is not ‘does this work?’ but ‘can my system actually deliver this?’We also discuss the research process in social sciences, some rules of thumb for interpreting a single causal claim, and why the public should be empowered to understand that evidence comes in different qualities.Read the show notes on our Substack: https://ideasindevelopment.substack.com/Check out Rafe’s research: https://sites.google.com/view/rachaelmeager/home