Benefits and context described in Atkinson S et al (2000) Going down to the local: incorporating social organisation and political culture into assessments of decentralised health care Social Science & Medicine 51(4) 619-636 http://dx.doi.org/10.1016/S0277-9536(00)00005-8 in Gilson L, ed. (2012). Health Policy and Systems Research: A Methodology Reader Alliance for Health Policy and Systems Research, World Health Organization p166-183