KnowraNatural experimentLinked fromLinked fromThe 18 pages that link to Natural experiment, each with the reason it gives.All 18Broader topic 2Related 5Narrower topic 1Compared with 10Causal inferenceRelated: It can support causal estimates when deliberate randomization is infeasible.John SnowRelated: The South London water-company comparison let Snow examine health outcomes under different water supplies.Control groupRelated: Researchers may use less-exposed populations as comparison groups when random assignment is unavailable.Trickle-down economicsRelated: Tax changes across places or times can provide evidence without assigning policies at random.Correlation does not imply causationRelated: It can offer quasi-experimental evidence without researcher-assigned treatment.