Financial incentives for COVID-19 vaccines in a rural low-resource setting: a cluster-randomized trial.

We implemented a clustered randomized controlled trial with 6,963 residents in six rural Ghana districts to estimate the causal impact of financial incentives on coronavirus disease 2019 (COVID-19) vaccination uptake. Villages randomly received one of four video treatment arms: a placebo, a standard health message, a high cash incentive (60 Ghana cedis) and a low cash incentive (20 Ghana cedis). For the first co-primary outcome-COVID-19 vaccination intentions-non-vaccinated participants assigned to the cash incentive treatments had an average rate of 81% (1,733 of 2,168) compared to 71% (1,895 of 2,669) for those in the placebo treatment arm.

Economic Recovery but Stagnating Mental Health During a Global Pandemic? Evidence from Ghana and South Africa.

Ghana and South Africa proactively implemented lockdowns very early in the pandemic. We analyze a three-wave panel of households in Accra and Greater Johannesburg to study the mental and economic well-being of the urban poor between the COVID-19 lockdown and the "new normal" one year later. We find that even if economic well-being has mostly recovered, life satisfaction has only improved slightly and feelings of depression are again at lockdown levels one year into the pandemic.

A call for structured ethics appendices in social science papers.

Ethics in social science experimentation and data collection are often discussed but rarely articulated in writing as part of research outputs. Although papers typically reference human subjects research approvals from relevant institutional review boards, most recognize that such boards do not carry out comprehensive ethical assessments. We propose a structured ethics appendix to provide details on the following: policy equipoise, role of the researcher, potential harms to participants and nonparticipants, conflicts of interest, intellectual freedom, feedback to participants, and foreseeable misuse of research results.

Erratum to "Aid to Africa's agriculture towards building physical capital: Empirical evidence and implications for post-COVID-19 food insecurity" [World Dev. Perspect. 20 (2020) 100269].

[This corrects the article DOI: 10.1016/j.wdp.

Aid to Africa's agriculture towards building physical capital: Empirical evidence and implications for post-COVID-19 food insecurity.

The formation of physical capital in Sub-Saharan Africa (SSA) in agriculture is imperative to help the continent (1) overcome the effect of the COVID-19 pandemic on food insecurity and (2) still be on track towards achieving the Sustainable Development Goals (SDGs) of "" and " in the midst of the COVID-19 pandemic. Using country-level data on 40 SSA countries from 1996 to 2014 and rainfall deviations as an instrument for agricultural official development assistance (ODA) in fixed-effect estimation settings, this paper examines the 'instantaneous' impact of agricultural ODA on agricultural fixed capital formation in SSA. The question here is whether aid to agriculture does translate instantaneously to building fixed capital urgently needed to address the effect of any potential crisis on food insecurity.

Agrochemical Health Risks Exposure and Its Determinants: Empirical Evidence among Cassava Farmers in Nigeria.

: Over the years there has been a change in the dimensions of agricultural health risk exposure among crop farmers in Nigeria due to innovation adoption. This study assessed agrochemical health risk exposures and its determinants among cassava farmers in Nigeria.: The study engaged the baseline of a longitudinal study conducted using a standardized questionnaire.

Managing the COVID-19 pandemic in poor urban neighborhoods: The case of Accra and Johannesburg.

Without a vaccine, practicing social distancing and protective hygiene are the most effective measures to curb the spread of COVID-19. In order to understand how the urban poor mitigate their risk of infection, we conducted a survey with more than 1,400 poor households in two of the African cities with the most COVID-19 infections, Accra and Greater Johannesburg, early in the pandemic, during lockdowns of public life. We find that many of the urban poor already engage in the appropriate hygienic behavior and follow social distancing rules.