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In the context of economic and financial difficulties, the debate over the effect of income taxation and redistribution has come back in most of the European countries. In this paper, we use the LIS data to examine the impact of income redistribution on middle class households from a cross-country perspective. To this aim, we calculate the balance between, on the one hand, the taxes and social contributions those households have to pay and, on the other, what they receive as social transfers. The research question here is whether middle class households benefit more or less from income redistribution than lower and upper class households. According to this study, income redistribution schemes appear to be "redistributive" in most of the European countries, which means that households having high income contribute to the income of those having lower resources. However, the intensity of the redistribution varies from one country to another: basically, northern European countries, in line with the Beveridge "universal" approach are more redistributive than southern countries, where social protection is mainly financed by employers and employee social insurance contributions.

The paper draws on the LIS data to describe the socio-economic situation of the Middle Classes for a selection of European countries over the last 30 years. The LIS data were used as they cover a wide range of countries, including not only European countries, but also American and Asiatic countries like India, China, Russia, Brazil, Peru or Chile. In addition, for some countries, LIS time series start in the seventies, which is particularly interesting for analysis over time. The paper starts with an historical and sociological review of the middle class concept in France, Germany, Belgium and the United Kingdom. Different options are considered then to define the middle classes, namely using subjective (self-assessment) or more objective criteria like income level, education attainment or type of occupation. The income-based definition is finally chosen as comparative data on income are now available in the European countries from sources like the LIS or EU Statistics on Income and Living Conditions (EU-SILC). Besides, income is generally correlated with socio-economic characteristics like age, education attainment or occupation. Based on this definition, summary statistics (size, mean income...) are produced for the middle class households in European countries. We observe that the situation of middle class households varies from one country to another: the group is getting smaller in some countries, while getting larger in others. With regard to income levels, the mean income of middle class households has been increasing over the last decades. However, it should be noted that the increase was in some key European countries (such as France) slower than the increase for lower class or upper class households.

Aim The aim of this study was to investigate the role of traits in beetle community assembly and test for consistency in these effects among several bioclimatic regions. We asked (1) whether traits predicted species’ responses to environmental gradients (i.e. their niches), (2) whether these same traits could predict co-occurrence patterns and (3) how consistent were niches and the role of traits among study regions. Location Boreal forests in Norway and Finland, temperate forests in Germany. Taxon Wood-living (saproxylic) beetles. Methods We compiled capture records of 468 wood-living beetle species from the three regions, along with nine morphological and ecological species traits. Eight climatic and forest covariates were also collected. We used Bayesian hierarchical joint species distribution models to estimate the influence of traits and phylogeny on species’ niches. We also tested for correlations between species associations and trait similarity. Finally, we compared species niches and the effects of traits among study regions. Results Traits explained some of the variability in species’ niches, but their effects differed among study regions. However, substantial phylogenetic signal in species niches implies that unmeasured but phylogenetically structured traits have a stronger effect. Degree of trait similarity was correlated with species associations but depended idiosyncratically on the trait and region. Species niches were much more consistent—widespread taxa often responded similarly to an environmental gradient in each region. Main conclusions The inconsistent effects of traits among regions limit their current use in understanding beetle community assembly. Phylogenetic signal in niches, however, implies that better predictive traits can eventually be identified. Consistency of species niches among regions means niches may remain relatively stable under future climate and land use changes; this lends credibility to predictive distribution models based on future climate projections but may imply that species’ scope for short-term adaptation is limited., Journal of Biogeography, 48 (12), ISSN:0305-0270, ISSN:1365-2699