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In the European Union, water supply services are referred to as 'services of general interest', meaning that they are subject to multiple, potentially conflicting, public service obligations. This paper considers empirical data for Portuguese municipalities and provides a comprehensive approach to assessing the social dimension hy evaluating whether the concerns of universal access to water services for hasic needs, affordability and equity are embodied in the corresponding water supply tariffs. Accordingly, 'essential minimum quantities' (EMQs) of water for representative households are calculated and then compared with the lowest tariff block's upper limit, by water utility. Next, charges underlying the EMQs are calculated and compared with the average income of each representative household, by municipality. The results show that, in general, the EMQs are enclosed in the first block of consumption and also that the corresponding water charges do not represent a disproportionate burden on average household size and income. Nonetheless, our findings indicate that, when considering the 20% poorest households, the water charges raise affordability concerns in an important number of municipalities. Further, the results show that there is a socio-economic inequity that favours the better-off households.

BackgroundIn accordance the WHO framework of health system functions and by using the indicators collected within the EURO-HEALTHY project, this work aims to contribute to the discussion on the classification of EU health systems.MethodsThree methods were used in this article: factor analysis, cluster analysis and descriptive analysis; data were mainly collected from the WHO and Eurostat databases.ResultsThe most relevant result is the proposed classification of health systems into the following clusters: Austria-Germany, Central and Northern Countries, Southern Countries, Eastern Countries ‘A’ and Eastern Countries ‘B’.ConclusionsThe proposed typology contributes to the discussion about how to classify health systems; the typology of EU health systems allows comparisons of characteristics and health system performance across clusters and policy assessment and policy recommendation within each cluster.Electronic supplementary materialThe online version of this article (10.1186/s12913-018-3323-3) contains supplementary material, which is available to authorized users.

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