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  5. Recalling extra data: a replication study of Finding missing markets
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Replication papers
Recalling extra data: a replication study of Finding missing markets

Recalling extra data: a replication study of Finding missing markets

3ie Replication Paper 5

Benjamin DK Wood and Michell Dong

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In this study, Benjamin DK Wood and Michell Dong conduct an internal replication of Finding Missing Markets (and a Disturbing Epilogue): Evidence From an Export Crop Adoption and Marketing Intervention In Kenya (2009). The original impact evaluation, by Nava Ashraf, Xavier Giné and Dean Karlan, found that an agricultural commercialisation programme targeting new adopters was most effective at increasing smallholder farmer household income levels. The pure replication generally reproduces the original findings.

Wood and Dong examine the robustness of the results to both measurement and theory of change analysis. In doing so, the authors highlight the importance of accounting for the multiple rounds of original data collection and question the implicit theoretical reasoning behind the original heterogeneous outcomes analysis.

3ie also invites formal replies from the original authors. These are published on the 3ie website together with the replication study.

Download Ashraf et als response

Treatment as Prevention: A replication study of a universal test and treatment cluster-randomized trial in Zambia and South Africa

Treatment as Prevention: A replication study of a universal test and treatment cluster-randomized trial in Zambia and South Africa

Replication paper 3ie 2022  
The authors of this paper replicated a landmark study by Hayes and colleagues (2019) on the HPTN 071 (PoPART) trial, which examined if a universal test and treatment program, along with a combination prevention intervention, could reduce HIV incidence in Zambia and South Africa. 

Treatment as prevention: A replication study on a universal test and treat cluster-randomized trial in South Africa from 2012–2016

Treatment as prevention: A replication study on a universal test and treat cluster-randomized trial in South Africa from 2012–2016

Replication paper 3ie 2022  

Authors of this paper replicated a landmark study by Iwuji and colleagues (2018) who examined the use of treatment as prevention (TaSP) trials for HIV-positive individuals in rural South Africa.

Treatment as prevention: a replication study on early antiretroviral therapy initiation and HIV-1 transmission

Treatment as prevention: a replication study on early antiretroviral therapy initiation and HIV-1 transmission

Replication paper 3ie 2020  
Eric Djimeu and Eleanor G Dickens conduct a replication of the HPTN 052 study by Cohen and colleagues that evaluates the impact of early initiation of antiretroviral therapy on rates of sexual transmission of HIV-1.

Biometric Smartcards and payment disbursement: a replication study of a state capacity-building experiment in India

Biometric Smartcards and payment disbursement: a replication study of a state capacity-building experiment in India

Replication paper 3ie 2019  
The National Rural Employment Guarantee Scheme and Social Security Pension are two of the largest employment programmes in Andhra Pradesh. Muralidharan and colleagues (2016) investigated the impacts of biometrically-authenticated payment infrastructure (Smartcards) on beneficiaries of the two employment programmes.

RPS22

Risk sharing and transaction costs: a replication study of evidence from Kenya’s mobile money revolution

Replication paper 3ie 2019  
This replication study starts with the twin strategies of push-button and pure replications of the original study. It then followed this up with various consistency and robustness checks, such as propensity score matching and the Tobit model specification.

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  • DOI : 10.23846/RPS0005

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