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This study reviews the experience of decentralization in four developing countries: Ghana, Uganda, Zambia and the Philippines. It uses two analytical frameworks to describe and compare the types and degrees of decentralization in each country. The first framework specifies three types of decentralization: deconcentration, delegation and devolution. The second framework uses a principal agent approach and innovative maps of 'decision space' to define the range of choice for different functions that is transferred from the centre to the periphery of the system. The analysis finds a variety of different types and degrees of decentralization, with the Philippines demonstrating the widest range of choice over many functions that were devolved to local government units. The least choice was transferred through delegation to an autonomous health service in Ghana. Uganda and Zambia display variations between these extremes. There was insufficient evidence of the impact of decentralization to assess how these differences in 'decision space' influenced the performance of each health system. The authors suggest that this is a major area for future research.

Governance is increasingly recognized as an important factor in health system performance, yet conceptually and practically it remains poorly understood and subject to often vague and competing notions of both what its role is and how to address its weaknesses. This overview article for the symposium on health governance presents a model of health governance that focuses on the multiplicity of societal actors in health systems, the distribution of roles and responsibilities among them and their ability and willingness to fulfil these roles and responsibilities. This focus highlights the principal-agent linkages among actors and the resulting incentives for good governance and health system performance. The discussion identifies three disconnects that constitute challenges for health system strengthening interventions that target improving governance: (1) the gap between the good governance agenda and existing capacities, (2) the discrepancy between formal and informal governance and (3) the inattention to sociopolitical power dynamics. The article summarizes the three country cases in the symposium and highlights their governance findings: health sector reform in China, financial management of health resources in Brazilian municipalities and budget reform in hospitals in Lesotho. The concluding sections clarify how the three cases apply the model's principal-agent linkages and highlight the importance of filling the gaps remaining between problem diagnosis and the development of practical guidance that supports 'best fit' solutions and accommodates political realities in health systems strengthening.

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