Can mHealth campaigns improve CCT outcomes? Experimental evidence from sms-nudges in Indonesia.

Employing a clustered RCT this paper examines the short-term impact of a 12-month mHealth BCC campaign on health practices & outcomes among CCT beneficiaries in Indonesia. Our analysis reveals that the intervention led to substantial improvements in maternal health behavior (postnatal care, child vaccinations, hygiene practices) & outcomes (anemia rates). Adopting a heterogeneous treatment effect framework, we further show that improvements in maternal hygiene practices and anemia rates are closely linked to health knowledge gained by mothers through the sms campaign. In contrast, we provide suggestive evidence that improvements in other health indicators are more likely to be related to the reminder and nudge components of the intervention.