期刊
POLITICAL RESEARCH QUARTERLY
卷 61, 期 2, 页码 282-293出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/1065912907306470
关键词
natural experiment; as if random; exogenous variation; continuum of plausibility; matching
Social scientists increasingly exploit natural experiments in their research. This article surveys recent applications in political science, with the goal of illustrating the inferential advantages provided by this research design. When treatment assignment is less than as if random, studies may be something less than natural experiments, and familiar threats to valid causal inference in observational settings can arise. The author proposes a continuum of plausibility for natural experiments, defined by the extent to which treatment assignment is plausibly as if random, and locates several leading studies along this continuum.
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