Estimating Equilibrium Effects of Job Search Assistance
研究发现丹麦一项针对失业者的激活计划违反了SUTVA假设，非参与者在计划实施后找工作更慢，使用双重差分模型估计了均衡效应。
Identifying policy-relevant treatment effects from randomized experiments requires the absence of spillovers between participants and nonparticipants (SUTVA) or variation in observed treatment levels. We find that SUTVA is violated for a Danish activation program for unemployed workers. Using a difference-in-differences model, we show that nonparticipants in the experiment regions find jobs more slowly after the introduction of the program than workers.