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Improving food security through community participation: results from a randomized field experiment in rural Nicaragua

Nicaragua - Publicado el 2026-01-05

This paper evaluates a community based development program designed to promote climate-smart agriculture and improve food security in rural Nicaragua. Using a within-community randomized controlled trial, we estimate short- and medium-term impacts on agricultural practices, production, and welfare. The program combined productive asset transfers, technical assistance, and training delivered through local solidarity groups. Results show significant increases in the adoption of improved inputs—such as certified seeds, biofertilizers, and post-harvest technologies—along with higher maize and bean yields, greater crop diversification, and expanded participation in producer organizations. Beneficiaries also report better food security and higher satisfaction with their quality of life. Because randomization occurred within communities, spillovers likely make these estimates conservative. The findings suggest that community-based delivery can effectively scale up CSA practices and strengthen food security in vulnerable rural areas.

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Por qué, en qué y cómo invertir para la seguridad alimentaria y nutricional en América Latina y el Caribe

América Latina, Caribe - Publicado el 2025-10-29

El documento analiza la creciente crisis de la Seguridad Alimentaria y Nutricional (SAN) en América Latina y el Caribe (ALC), una situación agravada por la pandemia de COVID-19, conflictos, el cambio climático, el bajo crecimiento económico y una alta inflación de alimentos que alcanzó el 23,5% en 2021. Esta combinación de factores puso a 248 millones de personas (37,4% de la población) en inseguridad alimentaria en 2022, afectando de manera desproporcionada a las áreas rurales, donde la pobreza extrema es el doble del promedio regional. Además, el costo de una dieta saludable en ALC supera el promedio global, dificultando su asequibilidad. Para lograr erradicar el hambre para 2030, el informe estima que ALC requiere una inversión anual adicional de USD 8.000 millones , la cual debe distribuirse en un portafolio de intervenciones costo-efectivas a través de cuatro dimensiones clave: sistemas alimentarios, resiliencia climática, protección social e infraestructura rural. Se recomienda priorizar la inversión en infraestructura rural y agricultura (USD 6.000 millones) enfocándose en la agricultura familiar, ya que es tres veces más efectiva para reducir la pobreza, genera hasta el 77% del empleo agrícola y es esencial para garantizar el acceso universal y sostenible a los alimentos.

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Intergenerational transmission of teen childbearing in Latin America

América Latina - Publicado el 2023-07-18

Using DHS data for six Latin American countries, we estimate the relation between a mother’s teenage childbearing status and that of her daughter. Restricting the estimating sample to mother-daughter matches in the data leads to a large negative selection bias in the estimated effect because missing matches are non-random and affected by the teen childbearing status of mothers and daughters. We deal with this selection bias by developing a Maximum Likelihood estimation using all available data, including incomplete mother-daughter pairs, and allowing missing observations to be endogenous. Our results show that being the daughter of a teen mother increases the chances of being a teen mother between 8.7 and 26.2 percentage points (between 61 and 172%). We conclude that the prevalence of such high intergenerational transmission is at the core of persistent high teenage childbearing rates in Latin America and suggests alternative public policy fixes.

Latin America has experienced high rates of teen childbearing for decades. Using DHS data for six Latin American countries, we estimate the relation between a mother’s teenage childbearing status and that of her daughter. Restricting the estimating sample to mother-daughter matches in the data leads to a large negative selection bias in the estimated effect because missing matches are nonrandom and affected by the teen childbearing status of mothers and daughters. We deal with this selection bias by developing a maximum likelihood estimation using all available data, including incomplete mother-daughter pairs, and allowing missing observations to be endogenous. Our results show that being the daughter of a teen mother increases the chances of being a teen mother between 9.1 and 23.7 percent age points (75 and 123% relative to the mean incidence of teen childbearing). We conclude that the prevalence of such high intergenerational transmission is at the core of persistent high teenage childbearing rates in Latin America.

Documentos de trabajo en investigación socioeconómica

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Improving food security through community participation: results from a randomized field experiment in rural Nicaragua

Por qué, en qué y cómo invertir para la seguridad alimentaria y nutricional en América Latina y el Caribe

Intergenerational transmission of teen childbearing in Latin America