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  • Does Free Sound Too Cheap ? The Adverse Effect of a Randomized Text Message Campaign on Program Take-up (English)

    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...

    Document Type: Policy Research Working Paper Report No.: WPS11063 Document Date: February 11, 2025 Disclosure Status: Disclosed Author: Annan,Jeannie,Mousson Estelle Jamel Koussoube,Josephine Tassy,Lea Marie Rouanet,Clara Delavallade,Evans,David

  • Lying to the Taxman or Accepting a Helping Hand ? Evidence from a Novel Experiment on SMEs in Tanzania (English)

    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...

    Document Type: Policy Research Working Paper Report No.: WPS11062 Document Date: February 10, 2025 Disclosure Status: Disclosed Author: Revocatus Washington Paul,Mdee,Ephraim,Fimbo,Massaga,Jonathan George Karver,Zain Chaudhry,Christopher Alexander Hoy


  • Working for Yourself or for Your Kids ? Childcare Expansion Policy in Uzbekistan (English)

    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...

    Document Type: Policy Research Working Paper Report No.: WPS11038 Document Date: January 15, 2025 Disclosure Status: Disclosed Author: Abdurazzakova,Dilnovoz,Chiyu Niu,Avralt-Od Purevjav


  • Local Knowledge, Formal Evidence, and Policy Decisions (English)

    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...

    Document Type: Policy Research Working Paper Report No.: WPS10994 Document Date: December 9, 2024 Disclosure Status: Disclosed Author: Vivalt, Eva,Aidan Coville,KC,Sampada

  • Behaviorally Informed Messages Increase COVID-19 Vaccination Intentions : Insights from a Global Meta-Analysis (English)

    During the COVID-19 pandemic, low- and middle-income countries struggled with lower vaccination rates compared to wealthier countries, posing challenges to reducing virus transmission, mitigating healthcare...

    Document Type: Policy Research Working Paper Report No.: WPS10981 Document Date: November 19, 2024 Disclosure Status: Disclosed Author: Daniel Alejandro Pinzon Hernandez,Jungkyu Rhys Lim,Michelle Dugas,Ellen Elizabeth Moscoe,Mohamad Chatila,Cameron,Corey,Renos Vakis,Zeina Afif,Victor Hugo Orozco Olvera

  • Building Women's Skills for Economic Inclusion and Resilience (English)

    Can skills-based programs promote women’s economic inclusion? This study randomizes access to a program teaching entrepreneurship skills in rural Uganda. The program covers record-keeping, identifying...

    Document Type: Policy Research Working Paper Report No.: WPS10980 Document Date: November 19, 2024 Disclosure Status: Disclosed Author: Megan Elizabeth Lang,Seither,Julia

  • Can Facebook Ads Prevent Malaria ? Two Field Experiments in India (English)

    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...

    Document Type: Policy Research Working Paper Report No.: WPS10967 Document Date: November 5, 2024 Disclosure Status: Disclosed Author: Donati,Dante,Rao,Nandan,Victor Hugo Orozco Olvera,Ana Maria Munoz Boudet

  • Designing Air Quality Measurement Systems in Data-Scarce Settings (English)

    While populations in low- and middle-income countries are exposed to some of the highest levels of air pollution and its consequences, the majority of economics research on the topic is focused on high-income...

    Document Type: Policy Research Working Paper Report No.: WPS10957 Document Date: October 24, 2024 Disclosure Status: Disclosed Author: Hoffmann,Bridget,Sveta Milusheva

  • Crisis Credit, Employment Protection, Indebtedness, and Risk (English)

    This paper studies how credit guarantee and employment protection programs interact in assisting firms during crises times. The paper analyzes how these government programs influence credit allocation...

    Document Type: Policy Research Working Paper Report No.: WPS10958 Document Date: October 24, 2024 Disclosure Status: Disclosed Author: Huneeus,Federico,Kaboski,Joseph P.,Larrain,Mauricio,Sergio Schmukler,Vera,Mario

  • Trade Restructuring : Assessing Labor Market and Welfare Effects (English)

    This paper assesses patterns and drivers of current trade restructuring and its welfare implications. The main trade restructuring drivers include lower cost advanced technologies, rising offshore labor...

    Document Type: Policy Research Working Paper Report No.: WPS10955 Document Date: October 23, 2024 Disclosure Status: Disclosed Author: Abreha,Kaleb,Gladys Lopez-Acevedo

  • Digitalization, Remote Work and Firm Resilience : Evidence from the COVID-19 Shock (English)

    Using Business Pulse Survey data for 61 countries during the COVID-19 pandemic, this paper presents novel findings on remote work, enabled by digitalization, as a source of resilience for firms. The results...

    Document Type: Policy Research Working Paper Report No.: WPS10949 Document Date: October 15, 2024 Disclosure Status: Disclosed Author: Ileana Cristina Constantinescu,Arti Grover,Gaurav Nayyar

  • Using Post-Double Selection Lasso in Field Experiments (English)

    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...

    Document Type: Policy Research Working Paper Report No.: WPS10931 Document Date: September 26, 2024 Disclosure Status: Disclosed Author: Cilliers,Jacobus,Nour Elashmawy,David McKenzie


  • Fiscal Challenges in Small States : Weathering Storms, Rebuilding Resilience (English)

    The COVID-19 pandemic and the global shocks that followed have worsened fiscal and debt positions in small states, intensifying their already substantial fiscal challenges—especially the need to manage...

    Document Type: Policy Research Working Paper Report No.: WPS10913 Document Date: September 17, 2024 Disclosure Status: Disclosed Author: Samuel Christopher Hill,Jeetendra Khadan