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Parenting interventions have the potential to improve early childhood development. Text messages are considered a promising channel to deliver parenting information at large scale. This paper tests whether sending text messages about parenting practices impacts early childhood development. Households in rural Nicaragua were randomly assigned to receive messages about nutrition, health, stimulation, or the home environment. The intervention led to significant changes in self-reported parenting practices. However, it did not translate into improvements in children's cognitive development. When local opinion leaders were randomly exposed to the same text message intervention, parental investments declined and children's outcomes deteriorated. Since interactions between parents and leaders about child development also decreased, the negative effects may have resulted from a crowding-out of some local leaders.

Scaling up early childhood development services has the potential to increase children's cognitive and socio-emotional development and promote school readiness in a large segment of the population. This study used a randomized controlled trial approach to evaluate three scaled-up programs designed to widen access to early childhood development services: formal preschools, community preschools, and home-based services. The impacts of all three programs fell short of expectations because of two key flaws in how they were scaled up. First, implementation did not receive due attention; as a result, school facilities were not completed as planned, community-based programs were not always established, and low, irregular stipends created difficulties in hiring and retaining teachers. Second, the services that were available were not promoted and thus not used as widely as anticipated. The results imply that the quality of programs supplied is critical, as is attention to the demand side of the problem. The finding that these programs fell short of expectations does not mean that interventions such as these are ineffective. Rather, it indicates that quality and demand require careful attention in attempts to scale up early childhood development interventions, and any problems should be addressed prior to evaluating effectiveness.

Interventions aimed at increasing the income generating capacity of the poor, such as vocational training, micro-finance or business grants, are widespread in the developing world. How to target such interventions is an open question. Many programs are self-targeted, but if perceived returns differ from actual returns, those self-selecting to participate may not be those for whom the program is the most effective. The authors analyze an unusual experiment with very high take-up of business grants and vocational skills training, randomly assigned among nearly all households in selected poor rural communities in Nicaragua. On average, the interventions resulted in increased participation in non-agricultural employment and higher income from related activities. The paper investigates whether targeting could have resulted in higher returns by analyzing heterogeneity in impacts by stated baseline demand, prior participation in non-agricultural activities, and a wide range of complementary asset endowments. The results reveal little heterogeneity along observed baseline characteristics. However, the poorest households are more likely to enter and have higher profits in non-agricultural self-employment, while less poor households assigned to the training have higher non-agricultural wages. This heterogeneity appears related to unobserved characteristics that are not revealed by stated baseline demand, and more difficult to target. In this context, self-targeting may reduce the poverty-reduction potential of income generating interventions, possibly because low aspirations limit the poor's ex-ante demand for productive interventions while the interventions have the potential to increase those aspirations. Overall, targeting productive interventions to poor households would not have come at the cost of reducing their effectiveness. By contrast, self-targeting would have limited poverty reduction by excluding the poorest.

While climate change is likely to increase weather risks in many developing countries, there is little evidence on effective policies to facilitate adaptation. This paper presents experimental evidence on a program in rural Nicaragua aimed at improving households' risk-management through income diversification. The intervention targeted agricultural households exposed to weather shocks related to changes in rainfall and temperature patterns. It combined a conditional cash transfer with vocational training or a productive investment grant. The authors identify the relative impact of each complementary package based on randomized assignment, and analyze how impacts vary by exposure to exogenous drought shocks. The results show that both complementary interventions provide full protection against drought shocks two years after the end of the intervention. Households that received the productive investment grant also had higher average consumption levels. The complementary interventions led to diversification of economic activities and better protection from shocks compared to beneficiaries of the basic conditional cash transfer and control households. These results show that combining safety nets with productive interventions can help households manage future weather risks and promote longer-term program impacts.

This brief summarizes the results of a gender impact evaluation study, entitled Changing households' investment and aspirations through social interactions : evidence from a randomized transfer program, conducted between November 2005 and December 2006 in Nicaragua. The study observed the impact of social interactions in determining aspirations in the context of a program aimed at increasing households' investments on the household head. Participants who were in close proximity to leaders who received the largest program substantially increased the on human capital investment, income diversification, and attitudes towards the future. Participants increased aspirations were driven by increased communication and motivation by female leaders. Having an additional leader with a productive investment package increases school attendance by about 2.5 percent, reduces absences by about 0.85 days per month, increases income from non-agricultural activities by about 3.3 dollar and increases the value of the animal stock by about 12 dollar. Funding for the study derived from the Gender Action Plan, Environmentally and Socially Sustainable Development (ESSD) Trust Fund, Regional Rural Bank (RRB) grant, BASIS-AMA, and Bank Netherlands Partnership Program.