Fig. 4: Persistence of treatment effects.

This figure plots the ATES for each month (measured in 4-week intervals) from the end of the intervention for each experimental arm, as estimated by Eq. (4). X-axis denotes the number of weeks since the intervention started (i.e., first message sent). Weather conditions, apartment fixed effects, day of the week fixed effects, and week fixed effects are taken into consideration. Shading indicates 95% confidence intervals. Driscoll and Kraay's standard errors were used. Errors were not clustered, given that the randomization was performed at the apartment level.