215 research outputs found

    Are academic economists out of touch with voters and politicians?

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    A new CFM survey discusses the implications of Brexit for the economics profession, write Wouter Den Haan, Ethan Ilzetzki, Martin Ellison and Michael McMaho

    Brexit and the economy: are economists out of touch with voters and politicians?

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    Given the majority of economic studies produced on Brexit prior to the UK’s referendum suggested that leaving the EU would leave the country worse off, should we conclude that economists are simply out of step with the views of voters? Drawing on evidence from a new survey by the Centre for Macroeconomics, Wouter Den Haan, Ethan Ilzetzki, Martin Ellison and Michael McMahon discuss the implications of Brexit for the economics profession

    Flexible labour markets, real wages and economic recoveries

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    Economists discuss the impact of low wages on the economy, and differences across EU countries - by Wouter Den Haan, Ethan Ilzetzki, Martin Ellison and Michael McMaho

    Cd8+ but Not Cd8− Dendritic Cells Cross-Prime Cytotoxic T Cells in Vivo

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    Bone marrow–derived antigen-presenting cells (APCs) take up cell-associated antigens and present them in the context of major histocompatibility complex (MHC) class I molecules to CD8+ T cells in a process referred to as cross-priming. Cross-priming is essential for the induction of CD8+ T cell responses directed towards antigens not expressed in professional APCs. Although in vitro experiments have shown that dendritic cells (DCs) and macrophages are capable of presenting exogenous antigens in association with MHC class I, the cross-presenting cell in vivo has not been identified. We have isolated splenic DCs after in vivo priming with ovalbumin-loaded β2-microglobulin–deficient splenocytes and show that they indeed present cell-associated antigens in the context of MHC class I molecules. This process is transporter associated with antigen presentation (TAP) dependent, suggesting an endosome to cytosol transport. To determine whether a specific subset of splenic DCs is involved in this cross-presentation, we negatively and positively selected for CD8− and CD8+ DCs. Only the CD8+, and not the CD8−, DC subset demonstrates cross-priming ability. FACS® studies after injection of splenocytes loaded with fluorescent beads showed that 1 and 0.6% of the CD8+ and the CD8− DC subsets, respectively, had one or more associated beads. These results indicate that CD8+ DCs play an important role in the generation of cytotoxic T lymphocyte responses specific for cell-associated antigens

    A vote to leave will increase financial market volatility

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    In late February, UK Prime Minister David Cameron announced that the referendum on the country’s continued membership of the European Union (EU) would be held on 23 June. Over the following weekend, a number of leading Conservative MPs announced their support for the campaign to leave the EU – ‘Brexit’. The pound sterling declined as trading opened on the Monday morning, losing close to 2% of its value relative to the dollar and 1.5% relative to the euro on the first day of trading following these news stories

    Is the era of central bank independence drawing to a close?

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    A survey of top European economists discusses central bank independence and inflation targeting, write Wouter Den Haan, Ethan Ilzetzki, Martin Ellison, Michael McMahon and Ricardo Rei

    Is a loose monetary policy still appropriate for the Eurozone?

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    A survey of economic experts discusses quantitative easing and its impact on structural reforms in the EU - by Wouter Den Haan, Ethan Ilzetzki, Martin Ellison, Michael McMahon and Ricardo Rei

    A multidisciplinary study of an exceptional prehistoric waste dump in the mountainous inland of Calabria (Italy) : implications for reconstructions of prehistoric land use and vegetation in Southern Italy

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    The mountainous inland of northern Calabria (Southern Italy) is known for its sparse prehistoric human occupation. Nevertheless, a thorough multidisciplinary approach of field walking, geophysical survey and invasive research led to the discovery of a major archaeological archive. This archive concerns a rich multi-phased dump, spanning about 3000 years (Late Neolithic to Late Imperial Roman Age) and holding two Somma-Vesuvius tephra. Of these, the younger is a distinct layer of juvenile tephra from the Pompeii eruption, while the older concerns reworked tephra from the Bronze Age AP2 eruption (ca. 1700 cal. yr BP). The large dump contains abundant ceramics, faunal remains and charcoal, and most probably originated through long-continued deposition of waste in a former gully like system of depressions. This resulted in an inversed, mound-like relief, whose anthropogenic origin had not been recognized in earlier research. The tephras were found to be important markers that support the reconstruction of the occupational history of the site. The sequence of occupational phases is very similar to that observed in a recent palaeoecological study from nearby situated former lakes (Lago Forano/Fontana Manca). This suggests that this sequence reflects the more regional occupational history of Calabria, which goes back to ca. 3000 BC. Attention is paid to the potential link between this history and Holocene climatic phases, for which no indication was found. The history deviates strongly from histories deduced from the few, but major palaeorecords elsewhere in the inlands of Southern Italy (Lago Grande di Monticchio and Lago Trifoglietti). We conclude that major regional variation occurred in prehistoric land use and its impacts on the vegetation cover of Southern Italy, and studies of additional palaeoarchives are needed to unravel this complex history. Finally, shortcomings of archaeological predictive models are discussed and the advantages of truly integrated multidisciplinary research

    Reconciling biodiversity and carbon stock conservation in an Afrotropical forest landscape

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    Protecting aboveground carbon stocks in tropical forests is essential for mitigating global climate change and is assumed to simultaneously conserve biodiversity. Although the relationship between tree diversity and carbon stocks is generally positive, the relationship remains unclear for consumers or decomposers. We assessed this relationship for multiple trophic levels across the tree of life (10 organismal groups, 3 kingdoms) in lowland rainforests of the Congo Basin. Comparisons across regrowth and old-growth forests evinced the expected positive relationship for trees, but not for other organismal groups. Moreover, differences in species composition between forests increased with difference in carbon stock. These variable associations across the tree of life contradict the implicit assumption that maximum co-benefits to biodiversity are associated with conservation of forests with the highest carbon storage. Initiatives targeting climate change mitigation and biodiversity conservation should include both old-growth and regenerating forests to optimally benefit biodiversity and carbon storage
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