Much of the current reform of urban health systems in sub-Saharan Africa focuses upon the referral system between different levels of care. It is often assumed that patients are by-passing primary facilities which leads to congestion at hospital outpatient departments. Zambia is well advanced in...

Private health services have expanded in many developing countries over the last 10 yr. Qualified private practitioners provide basic health care for poorer groups in urban areas, although health care planners frequently criticize them for providing poor quality of care, charging high fees...

Research on policy processes has emerged over the last 30-40 years in Northern contexts. Such research has expanded into Southern contexts. An interest in the use of 'evidence' (such as research) in policy processes is a relatively recent phenomenon. There are, to date, relatively few empirical...

Accompanying the call for increased evidence-based policy the developed world is implementing more longitudinal panel studies which periodically gather information about the same people over a number of years. Panel studies distinguish between transitory and persistent states (e.g. poverty,...