Randomized controlled trials (RCTs) are increasingly popular for assessing development programmes. This study investigates the validity of extrapolating RCT results to large‐scale programmes, using the example of the national bed net subsidy programme in Tanzania that later added a free...

This paper adopts three approaches to classifying countries by level of constraint, in order to inform the choice of strategies for expanding access to health interventions in different contexts. We find substantial heterogeneity across the 84 low-income and (all) sub-Saharan African countries...

This paper reviews the current evidence base regarding efforts to overcome constraints to effective health service delivery in low and middle-income countries. A systematic literature review was chosen as the approach to gather and analyse existing knowledge about how to improve the...

The Commission on Macroeconomics and Health recommended a significant expansion in funding for health interventions in poor countries. However, there are a range of constraints to expanding access to health services: as well as an absolute lack of resources, access to health interventions is...