The direct and spillover effects of diabetes diagnosis on lifestyle behaviours
利用血糖数据中的糖尿病风险临界点，估计糖尿病诊断对患者及其伴侣运动行为的影响，发现诊断增加了双方运动概率，且共同参与是主要机制。
Using blood sample data we exploit an arbitrary cut-off of diabetes risk and through a fuzzy regression kink design we estimate the effect of a diabetes diagnosis on own and partner health-related behaviours. Diabetes diagnosis increases the probability of exercising, both for those diagnosed with diabetes and their partner. We also conduct mediation analysis which suggests that joint household participation is the channel behind this effect. Our results have significant implications for the understanding of the channels that induce behavioural change, and household decision making, as well as, for the evaluation of diabetes related policies.