Department of Economics, Bentley University, Waltham, Massachusetts.
Department of Economics, College of Liberal Arts and Sciences, University of Colorado Denver, Denver.
JAMA Health Forum. 2021 Oct 15;2(10):e213117. doi: 10.1001/jamahealthforum.2021.3117. eCollection 2021 Oct.
This case-control study assesses if announcements of cash drawings in 19 states were associated with increased vaccine uptake by comparing vaccination trends in states that announced drawings with states that did not using a difference-in-differences framework.
本病例对照研究通过使用双重差分框架,比较了宣布抽奖活动的 19 个州与未宣布抽奖活动的州的疫苗接种趋势,以评估这些州的现金抽奖活动公告是否与疫苗接种率的提高有关。