1,362 research outputs found
Researching Social Services of General Interest: an Analytical Framework Derived from Underlying Policy Systems
This paper discusses Social Services of General Interest, a political term of the European Union, which lies at the heart of the European Model of Society and Cohesion concepts. How and why is the organization and provision of services across Europe rooted in, and shaped by, the prevailing national constitutional components of social welfare and spatial planning systems? A high degree of interrelation between these two systems is confirmed and Social Services of General Interest are detected and conceptualized as a substantiation of components of both systems. In a concluding step, an analytical framework is introduced which enables us to research Social Services of General Interest from different angles for the purpose of deploying promising policy solutions
The polarization process of ferroelectric materials analyzed in the framework of variational inequalities
We are concerned with the mathematical modeling of the polarization process
in ferroelectric media. We assume that this dissipative process is governed by
two constitutive functions, which are the free energy function and the
dissipation function. The dissipation function, which is closely connected to
the dissipated energy, is usually non-differentiable. Thus, a minimization
condition for the overall energy includes the subdifferential of the
dissipation function. This condition can also be formulated by way of a
variational inequality in the unknown fields strain, dielectric displacement,
remanent polarization and remanent strain. We analyze the mathematical
well-posedness of this problem. We provide an existence and uniqueness result
for the time-discrete update equation. Under stronger assumptions, we can prove
existence of a solution to the time-dependent variational inequality. To solve
the discretized variational inequality, we use mixed finite elements, where
mechanical displacement and dielectric displacement are unknowns, as well as
polarization (and, if included in the model, remanent strain). It is then
possible to satisfy Gauss' law of zero free charges exactly. We propose to
regularize the dissipation function and solve for all unknowns at once in a
single Newton iteration. We present numerical examples gained in the open
source software package Netgen/NGSolve
Distributional National Accounts (DINA) with Household Survey Data: Methodology and Results for European Countries
The paper builds Distributional National Accounts (DINA) using household survey data. We present a transparent and reproducible methodology to construct DINA whenever administrative tax data are not available for research and apply it to various European countries. By doing so, we build synthetic microdata files which cover the entire distribution, include all income components individually aligned to national accounts, and preserve the detailed socioeconomic information available in the surveys. The methodology uses harmonized and publicly available data sources (SILC, HFCS) and provides highly comparable results. We discuss the methodological steps and their impact on the income distribution. In particular, we highlight the effects of imputations and the adjustment of the variables to national accounts totals. Furthermore, we compare different income concepts of both the DINA and EG-DNA approach of the OECD in a consistent way. Our results confirm that constructing DINA is crucial to get a better picture of the income distribution. Our methodology is well suited to build synthetic microdata files which can be used for policy evaluation like social impact analysis and microsimulation.Series: INEQ Working Paper Serie
CMOS-compatible graphene photodetector covering all optical communication bands
Optical interconnects are becoming attractive alternatives to electrical
wiring in intra- and inter-chip communication links. Particularly, the
integration with silicon complementary metal-oxide-semiconductor (CMOS)
technology has received considerable interest due to the ability of
cost-effective integration of electronics and optics on a single chip. While
silicon enables the realization of optical waveguides and passive components,
the integration of another, optically absorbing, material is required for
photodetection. Germanium or compound semiconductors are traditionally used for
this purpose; their integration with silicon technology, however, faces major
challenges. Recently, graphene has emerged as a viable alternative for
optoelectronic applications, including photodetection. Here, we demonstrate an
ultra-wideband CMOS-compatible photodetector based on graphene. We achieve
multi-gigahertz operation over all fiber-optic telecommunication bands, beyond
the wavelength range of strained germanium photodetectors, whose responsivity
is limited by their bandgap. Our work complements the recent demonstration of a
CMOS-integrated graphene electro-optical modulator, paving the way for
carbon-based optical interconnects.Comment: 18 pages, 4 figures. Nature Photonics, 201
Sozioökonomische Charakteristika der Millionärshaushalte in Österreich
Mithilfe der Vermögenserhebung
HFCS 2010 können die sozioökonomischen
Charakteristika der österreichischen
Privathaushalte mit einem Nettovermögen
von mehr als 1 Mio. Euro
analysiert werden. Im Vergleich zur
Zusammensetzung der Gesamtpopulation
zeigt sich, dass Haushalte, deren
HöchstverdienerIn einen akademischen Abschluss erzielt hat, selbstständig
arbeitet, Betriebsvermögen in
der Land- und Forstwirtschaft besitzt
oder bereits eine Erbschaft erhalten
hat, deutlich überrepräsentiert sind.
Demgegenüber haben nur 2% der Unselbstständigen-
Haushalte mehr als 1
Mio. Euro Nettovermögen und sind somit
stark unterrepräsentiert, unabhängig
von ihrem Bildungsgrad oder anderen
sozioökonomischen Charakteristika. (authors' abstract
Die Doctrine classique des Familienbonus+ - Eine Debatte in 5 Akten
Im Rahmen dieses Beitrags werden die Auswirkungen der 2018 in Österreich eingeführten Familienförderungsmaßnahme Familienbonus+ in Hinblick auf die Ausschöpfung der steuerlichen Entlastung nach unterschiedlichen Faktoren, wie etwa Haushaltstruktur, Alter, Geschlecht, Bildung und Urbanisierungsgrad, analysiert. Die Simulation der Steuerreform wurde mithilfe des Mikrosimulationsmodells EUROMOD durchgeführt. Es zeigt sich, dass Familien bzw. Kinder in sehr unterschiedlichem Ausmaß von der Maßnahme profitieren, da manche Eltern über nicht genügend Einkommen verfügen oder zuvor mehr von den abgeschafften Steuerbegünstigungen (Kinderfreibetrag und Absetzbarkeit von Kinderbetreuungskosten) profitieren konnten. Entgegen der politischen Diskussion werden insbesondere Haushalte, in denen beide Elternteile Vollzeit arbeiten, nur unterproportional zu ihrer Steuerleistung entlastet, während Haushalte mit Vollzeit-Teilzeit-Aufteilung und AlleinverdienerInnen überproportional profitieren. Darüber hinaus werden insbesondere Personen zwischen 20 und 45 Jahren, welche in ländlichen Gebieten wohnen und einen Abschluss der Sekundarstufe aufweisen, entlastet. Zusätzlich zeigt sich, dass Männer aufgrund der hohen Einkommensdifferenzen zwischen den Geschlechtern über dreimal so viel von dieser Maßnahme profitieren wie Frauen.Series: INEQ Working Paper Serie
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