Notes: Outcome is an indicator variable for whether the parent reports being willing to pay for continued text message service (four text messages per month from the school) after the end of the year. Column 1 reports estimates of being assigned a particular randomized price (1,500 CLP, 1,000 CLP, or 500 CLP, the omitted category). Column 2 shows intention-to-treat estimates by interacting these randomized prices with the randomized treatment (equal to one if parents were sent text messages and zero otherwise). All models include the baseline math grade, attendance rate as control variables, classroom (randomization strata), and year fixed effects. If baseline values of baseline math grade/attendance were missing, we imputed them using the classroom-level means and added an indicator variable for these imputed observations. Standard errors are clustered at the classroom level (shown in brackets). Significance: *p < 0.1, **p < 0.05, ***p < 0.01.