Digital Addiction
构建了一个数字成瘾的经济模型，并通过随机实验估计参数。实验发现，暂时激励减少社交媒体使用有持续效果，表明社交媒体具有习惯形成性；允许用户设定屏幕时间上限显著减少使用，表明存在自我控制问题。模型估计自我控制问题导致了31%的社交媒体使用。
Many have argued that digital technologies such as smartphones and social media are addictive. We develop an economic model of digital addiction and estimate it using a randomized experiment. Temporary incentives to reduce social media use have persistent effects, suggesting social media are habit forming. Allowing people to set limits on their future screen time substantially reduces use, suggesting self-control problems. Additional evidence suggests people are inattentive to habit formation and partially unaware of self-control problems. Looking at these facts through the lens of our model suggests that self-control problems cause 31 percent of social media use.