Background Primary healthcare (PHC) is critical towards achieving Universal Health Coverage (UHC). In Ghana, PHC is organised at the district level and plays a key role in the country’s pursuit of UHC ...

We estimated 252 stochastic frontier models using combinations of variable choice, functional form and distributional assumptions. A second stage analysis was conducted to examine the effects of model ...

This paper quantifies Guinea-Bissau’s tax potential using a stochastic frontier model and investigates the underlying sources of untapped revenue. Beyond benchmarking performance against structural ...