Permanent and Transitory Substitution Effects in Health Insurance Experiments
分析如何从临时实验中推断永久性政策变化的效果，指出参与者因实验时间有限而行为不同，对政策评估有重要参考价值。
Participants in labor market experiments are aware that the experiments run for a limited amount of time. Thus behavior during a temporary experiment will be different than if the experimental change in constraints confronting participants were permanent. In evaluating changes in policy, however, the response to permanent changes is of primary interest. The paper analyzes conditions under which permanent responses can be inferred from data on temporary experiments.