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Natural Experiments in the Social Sciences: A Design-Based Approach/en-ca/natural-experiments-in-the-social-sciences-a-design-based-approach/7B6960EA-74D2-4718-A3A8-CE046869DBA6.html7B6960EA-74D2-4718-A3A8-CE046869DBA6
Natural Experiments in the Social Sciences: A Design-Based Approach