The replication study reproduces the econonomists’ analysis from the viewpoint of epidemiology. In part 1, Alexander Aiken, Calum Davey, James Hargreaves and Richard Hayes, present a pure replication that reexamines the coding and methodologies used by the original authors in their publication.
In part 2, Calum Davey, Alexander Aiken, Richard Hayes, and James Hargreaves apply alternative analyses to the original research effort, including testing alternative estimation strategies and an examination of the causal chain to see how the conclusions reached compare with those of the original study.
3ie also invites formal replies from the original authors. These are published on the 3ie website together with the replication study.
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.
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.
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.
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.