Documentos e informes
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Impacts and Spillovers of a Low-Cost Multifaceted Economic Inclusion Program in Chad (Inglés)
This study analyzes the direct effects and local spillovers of a low-cost multifaceted economic inclusion program through a randomized controlled trial in Chad. The intervention included group savings...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS11084 Fecha del documento: 12 de marzo de 2025 Tipo de divulgación: Disclosed Autor: Patrick Premand,Pascale Schnitzer
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Seeds of Change : The Impact of Ethiopia’s Direct Seed Marketing Approach on Smallholders’ Seed Purchases and Productivity (Inglés)
Several factors contribute to the limited use of improved seed varieties in Ethiopia. Among those, on the supply side, is the restricted availability of seeds in the volume, quality, and timeliness required...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS11078 Fecha del documento: 3 de marzo de 2025 Tipo de divulgación: Disclosed Autor: Dawit Kelemework Mekonnen,Abate,Gashaw T.,Yimam,Seid,Benfica,Rui,Spielman,David J.,Place,Frank
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Effects of a Community-Driven Water, Sanitation, and Hygiene Intervention on Diarrhea, Child Growth, and Local Institutions : A Cluster-Randomized Controlled Trial in Rural Democratic Republic of Congo (Inglés)
Diarrhea and growth faltering in early childhood reduce survival and impair neurodevelopment. This paper assesses whether a national program in the Democratic Republic of Congo reduced diarrhea and stunting...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS11070 Fecha del documento: 19 de febrero de 2025 Tipo de divulgación: Disclosed Autor: Quattrochi, John P,Croke,Kevin,Caleb Jeremie Dohou,Luca Stanus Ghib,Yannick Bokasola Lokaya,Aidan Coville,Mvukiyehe,Eric
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Does Free Sound Too Cheap ? The Adverse Effect of a Randomized Text Message Campaign on Program Take-up (Inglés)
This study conducted a randomized experiment to improve participation in a youth employment program in Côte d'Ivoire by testing text message outreach methods. Sending text messages highlighting that the...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS11063 Fecha del documento: 11 de febrero de 2025 Tipo de divulgación: Disclosed Autor: Annan,Jeannie,Mousson Estelle Jamel Koussoube,Josephine Tassy,Lea Marie Rouanet,Clara Delavallade,Evans,David
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Lying to the Taxman or Accepting a Helping Hand ? Evidence from a Novel Experiment on SMEs in Tanzania (Inglés)
This paper presents the results from a novel field experiment that examined the impact of in- creasing the presence of revenue authority officers on tax compliance and tax morale among small and medium-size...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS11062 Fecha del documento: 10 de febrero de 2025 Tipo de divulgación: Disclosed Autor: Revocatus Washington Paul,Mdee,Ephraim,Fimbo,Massaga,Jonathan George Karver,Zain Chaudhry,Christopher Alexander Hoy
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Working for Yourself or for Your Kids ? Childcare Expansion Policy in Uzbekistan (Inglés)
In developed countries, public childcare programs have increased maternal employment by easing time constraints. However, their impact in lower-middle-income settings with multigenerational households...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS11038 Fecha del documento: 15 de enero de 2025 Tipo de divulgación: Disclosed Autor: Abdurazzakova,Dilnovoz,Chiyu Niu,Avralt-Od Purevjav
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Conserving Wildlife through Demand Reduction and Supply Alternatives : Two Experiments in Restaurants in Kinshasa (Inglés)
High aggregate levels of wildlife consumption in Central African cities may be depleting wildlife populations. This study explores the impacts of demand and supply-side interventions on wild meat consumption...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS11016 Fecha del documento: 7 de enero de 2025 Tipo de divulgación: Disclosed Autor: Cisse,Abdoulaye,Gabriel Englander,Ingram,Daniel J.
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Local Knowledge, Formal Evidence, and Policy Decisions (Inglés)
How do policymakers value advice from local experts versus formal evidence from impact evaluations when making policy decisions? Using a discrete choice experiment conducted in collaboration with the World...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10994 Fecha del documento: 9 de diciembre de 2024 Tipo de divulgación: Disclosed Autor: Vivalt, Eva,Aidan Coville,KC,Sampada
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Can Facebook Ads Prevent Malaria ? Two Field Experiments in India (Inglés)
This study uses a cluster randomized controlled trial to evaluate the impact of a nationwide malaria prevention advertising campaign delivered through social media in India. Ads were randomly assigned...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10967 Fecha del documento: 5 de noviembre de 2024 Tipo de divulgación: Disclosed Autor: Donati,Dante,Rao,Nandan,Victor Hugo Orozco Olvera,Ana Maria Munoz Boudet
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Using Post-Double Selection Lasso in Field Experiments (Inglés)
The post-double selection Lasso estimator has become a popular way of selecting control variables when analyzing randomized experiments. This is done to try to improve precision, and reduce bias from attrition...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10931 Fecha del documento: 26 de septiembre de 2024 Tipo de divulgación: Disclosed Autor: Cilliers,Jacobus,Nour Elashmawy,David McKenzie
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Learning When Schools Shutdown : Impacts of H1N1 Outbreak on Learning Loss and Learning Gaps (Inglés)
This paper contributes to the growing body of evidence on the effects of school closures on learning outcomes, focusing on a recent event in a developing country. During the 2009 H1N1 pandemic outbreak...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10879 Fecha del documento: 26 de agosto de 2024 Tipo de divulgación: Disclosed Autor: Amorim,Vivian,Caio Piza,Lautharte Jr.,Ildo José
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The Fertility Impacts of Development Programs (Inglés)
This paper examines how women’s fertility responds to increases in their earnings and household wealth, using six experiments conducted in Sub-Saharan Africa. Contrary to predictions that an increase in...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10848 Fecha del documento: 10 de julio de 2024 Tipo de divulgación: Disclosed Autor: Aletheia Amalia Donald,Markus Goldstein,Tricia Koroknay-Palicz,Sage,Mathilde
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Therapy, Mental Health, and Human Capital Accumulation among Adolescents in Uganda (Inglés)
Using a cluster-randomized trial, this paper evaluates the impact of group-based interpersonal therapy on mental health and human capital accumulation among adolescent girls in Uganda who were at risk...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10849 Fecha del documento: 10 de julio de 2024 Tipo de divulgación: Disclosed Autor: Baird,Sarah,Berk Ozler,Dell'Aira,Chiara,Parisotto,Luca,Us-Salam,Danish
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How Culturally Wise Psychological Interventions Help Reduce Poverty (Inglés)
Poverty is multidimensional, associated not only with a lack of financial resources, but also often social-psychological constraints, such as diminished agency and aspirations. Through a series of field...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10824 Fecha del documento: 26 de junio de 2024 Tipo de divulgación: Disclosed Autor: Thomas,Catherine,Patrick Premand,Thomas Bossuroy,Sambo,Soumaila Abdoulaye,Markus,Hazel,Walton,Gregory
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Private Provisioning of Employment Services : Experimental Evidence from Bosnia and Herzegovina (Inglés)
This paper examines the effect of compensating a private sector provider of employment services for successful placement of jobseekers with employers. Within this program, active job matching, relative...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10826 Fecha del documento: 26 de junio de 2024 Tipo de divulgación: Disclosed Autor: Balavac-Orlic,Merima,John T. Giles,Siddharth Hari,Mirey Ovadiya
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From Access to Achievement : The Primary School-Age Impacts of an At-Scale Preschool Construction Program in Highly Deprived Communities (Inglés)
Using a randomized control trial, this paper studies an at-scale preschool construction program that serves poor communities in rural Mozambique. In addition to the construction of preschools, the program...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10814 Fecha del documento: 24 de junio de 2024 Tipo de divulgación: Disclosed Autor: Marina Bassi,Besbas,Bruno,Lelys Dinarte,Ravindran,Saravana,Reynoso,Ana
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Do Patients Value High-Quality Medical Care ? Experimental Evidence from Malaria Diagnosis and Treatment (Inglés)
Can better information on the value of diagnostic tests improve adoption and help patients recognize higher quality of care? In a randomized experiment in public clinics in Mali, providers and patients...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10746 Fecha del documento: 4 de abril de 2024 Tipo de divulgación: Disclosed Autor: Carolina Lopez,Anja Sautmann,Schaner,Simone
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Empowering Adolescent Girls through Safe Spaces and Accompanying Measures in Côte d’Ivoire (Inglés)
This study uses a cluster-randomized controlled trial to investigate the effects of a large-scale women and girls empowerment program on sexual and reproductive health and empowerment outcomes in Côte...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10721 Fecha del documento: 14 de marzo de 2024 Tipo de divulgación: Disclosed Autor: Othmane Boulhane,Claire Elise Boxho,Kanga,Désiré,Mousson Estelle Jamel Koussoube,Lea Marie Rouanet
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Cross-Country Empirical Analysis of GovTech Platforms on Citizen Engagement (Inglés)
Countries worldwide are implementing GovTech reforms to modernize the public sector and achieve better performance while responding to citizens’ needs. At its core, GovTech represents a whole-of-government...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10716 Fecha del documento: 5 de marzo de 2024 Tipo de divulgación: Disclosed Autor: World Bank
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Leveraging Women’s Views to Influence Gender Norms around Women Working : Evidence from an Online Intervention in Indonesia (Inglés)
How to influence social norms that drive behavior in relation to women’s participation in employment is not well understood. Providing randomly selected participants with information on the extent of (i)...
Tipo de documento: Documento de trabajo sobre investigaciones relativas a políticas Número del informe: WPS10681 Fecha del documento: 23 de enero de 2024 Tipo de divulgación: Disclosed Autor: Cameron,Lisa,Contreras Suarez,Diana Stella,Setyonaluri,Diahhadi