Search results for "SWI"
showing 10 items of 1473 documents
Towards a local mass mortality of the Mediterranean orange coral Astroides calycularis (Pallas, 1766) in the Pelagie Islands Marine Protected Area (I…
2022
In late summer 2020, a widespread mortality event severely affected colonies of the Mediterranean endemic orange coral Astroides calycularis in the Pelagie Islands (Strait of Sicily, southern Mediterranean Sea). The degree of the mortality impact at seven study sites of the archipelago (five within the Pelagie Islands Marine Protected Area) was quantified by estimating the proportion of affected colonies in populations of A. calycularis. Five of the seven surveyed sites revealed a low degree of impact, but Punta Ruperta and Cala Creta (both on the island of Lampedusa) showed a medium impact with values of 32.3% and 30.5% of affected colonies respectively. The 2020 mortality event coincided …
Unequal Attainments: Ethnic educational inequalities in ten Western countries
2014
Western countries have become increasingly diverse in recent decades and these demographic trends are certain to continue. The resulting ethnic diversity is a major challenge to policy-makers, who need to tackle issues of social justice and social integration. Education plays a pivotal role since it is the major stepping stone for the children of immigrants to successful economic integration and also plays a major role in social and political integration more generally since education gives access to the skills, resources and contacts which enable individuals to participate fully in the life of their society. Our central research questions are: Do the descendants of migrants experience equa…
Twenty Years of Basic Vocational Education Provision in Spain: Changes and Trends
2015
International journal for research in vocational education and training 2 (2015) 2, S. 137-151
The determinants of increasing equity market comovement: economic or financial integration?
2010
This paper investigates to what extent the substantial increase in exposures of local European equity market returns to global shocks is mainly due to a convergence in cash flows (“economic integration”), to a convergence in discount rates (“financial integration”), or to both. We find that this increased exposure is nearly entirely due to increasing discount-rate betas. This finding is robust to alternative ways of calculating discount-rate and cash-flow shocks.
On measuring speculative and hedging activities in futures markets from volume and open interest data
2010
This paper provides a critical assessment of the line of research that measures speculative and hedging activities in futures markets from volume and open interest data. It makes several contributions. First, a detailed theoretical analysis of the measures proposed in the previous literature as proxies for speculative activity clarifies the circumstances in which they fail, as well as the assumptions that have to be made, when they are used as intended. Second, we propose a new way of combining the volume and the open interest figures, which provides additional information regarding the type of trading activity that takes place in the market on a given date. Finally, we analyse empirically …
Redistribution, selection, and trade
2017
Abstract This paper examines the distributional effects of international trade in a general equilibrium model with heterogeneous agents and a welfare state redistributing income. The redistribution scheme is financed by a progressive income tax and gives the same absolute transfer to all individuals. Ceteris paribus, international trade leads to an increase in income per capita but also to higher income inequality on two fronts. Inter-group inequality between managers and workers increases, and intra-group inequality within the group of managers goes up as well. We show that for a given tax rate, there is an endogenous increase in the size of the welfare state that works against the increas…
A critical empirical study of three electricity spot price models
2012
We conduct an empirical analysis of three recently proposed and widely used models for electricity spot price process. The first model, called the jump-diffusion model, was proposed by Cartea and Figueroa (2005), and is a one-factor mean-reversion jump-diffusion model, adjusted to incorporate the most important characteristics of electricity prices. The second model, called the threshold model, was proposed by Roncoroni (2002) and further developed by Geman and Roncoroni (2006), and is an exponential Ornstein–Uhlenbeck process driven by a Brownian motion and a state-dependent compound Poisson process. It is designed to capture both statistical and pathwise properties of electricity spot pri…
Pathways to higher education in France and Switzerland: Do vocational tracks facilitate access to higher education for immigrant students?
2014
In this chapter we wish to clarify through which institutional pathways higher education is accessed by immigrant group students in Switzerland and France. We have chosen these two countries because they differ from each other both in their educational systems and in the ways new routes to higher education have been set up through vocationally orientated programmes. The educational landscape in France is characterised by a more school-based system and has a greater tradition of prestigious tertiary education institutions (Duru-Bellat et al., 2008). Moreover, traditional vocational education and training (VET) does not have very high status and therefore fails to attract a large proportion o…
Stand der Forschung im Bereich der Bildungsökonomie : Allgemeine Übersicht und französische Situation
1994
Benner, Dietrich [Hrsg.]; Lenzen, Dieter [Hrsg.]: Bildung und Erziehung in Europa. Beiträge zum 14. Kongreß der Deutschen Gesellschaft für Erziehungswissenschaft vom 14.-16. März 1994 in der Universität Dortmund. Weinheim u.a. : Beltz 1994, S. 135-148. - (Zeitschrift für Pädagogik, Beiheft; 32)
Pathways enabling educational success for vulnerable immigrants in Switzerland, Canada and France
2014
Parcours d'études favorisant l'accès à l'enseignement supérieur des jeunes d'origine immigrée en Suisse, France et au Canada - Les politiques éducatives des dernières décennies ont favorisé les poursuites d'études des élèves jusqu'aux niveaux post-secondaires. Ces politiques devraient contribuer à réduire certaines inégalités connues dans le système éducatif en améliorant la réussite scolaire des groupes défavorisés ou vulnérables tels les enfants d'origine immigrée ou de milieu social modeste. Dans cet article, nous cherchons à préciser non seulement si, mais aussi comment les parcours scolaires, permettent l'accès à l'enseignement supérieur des jeunes d'origine immigrée, en mobilisant tro…