方法证据记录
Crossover Natural Experiment
A crossover natural experiment exploits an externally imposed condition — a policy change, law, or environmental event — that exposes the same units (individuals, regions, firms) to both treatment and control states at different times. By observing each unit in multiple conditions, researchers use within-unit variation to estimate causal effects without researcher-controlled randomization, combining the internal validity advantage of crossover designs with the real-world relevance of natural experiments.
源记录
引文逐字复制自方法源记录。这些引文不代表任何层级的验证。
Crossover Natural Experiment Design
分类方法记录 · process-pipeline / experimental-design
- Dunning, T. (2012). Natural Experiments in the Social Sciences: A Design-Based Approach. Cambridge University Press. · ISBN 978-1107698000
- Jones, B., & Kenward, M. G. (2003). Design and Analysis of Cross-Over Trials (2nd ed.). Chapman & Hall/CRC. · ISBN 978-1584880384
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