The 2019 Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel rewarded the experimental approach to alleviating global poverty. This approach took roots in development economics in the early 2000s and has completely transformed research – in development and beyond. Today development economics is a vibrant field. Experiments and quasi-experiments are combined with an arsenal of other tools to, for example, structurally estimate theoretical models of underdevelopment, to test psychological explanations for poverty, to estimate general-equilibrium effects of anti-poverty policies, to uncover such elusive parameters as the degree of market competition, and to harness the power of big data. Ted’s talk starts at 31:40.