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Binomial, Equation and pq Formula
No full textDie Struktur der binomischen Gleichungen bindet die Elemente und ihre Koeffizienten untereinander. Diese Bedingung erfüllen die zu untersuchenden Gleichungen nicht. Daher liefern pq-Formeln Richtwerte, die durch Iteration mit Kontrollrechnung zum Lösungsergebnis führen. Dies ist erreicht, wenn die Summe aller Zahlenwerte Null ist. Für Gleichungen n. Grades werden in Fachbüchern Lösungsverfahren eingehend besprochen, mit dem Hinweis: Auch einfachere Methoden führen oftmals zum Ziel. Hier bieten die pq-Formeln einen praktischen Ansatz.Submitted Versio
Obtaining simultaneously high crystallinity and sub-bandgap absorption in femtosecond laser hyperdoped black silicon using ion beam etching
Get PDFFemtosecond laser sulfur hyperdoped silicon (fs-hSi) is capable of absorbing photons in the infrared spectral range while simultaneously exhibiting negligible reflection. However, laser processing creates detrimental amorphous and polycrystalline silicon surface layers impairing electronic properties, especially reducing minority charge carrier lifetimes. This paper demonstrates how to selectively remove these disadvantageous layers by ion beam etching, while crystalline IR-absorbing silicon underneath is left. The increase in silicon crystallinity is quantified by laterally probing the fs-hSi samples with Raman spectroscopy.Accepted Versio
Minimum capital requirements for market risk: An overview and critical analysis of the standardized approaches under Basel III
Get PDFIm Januar 2019 veröffentlichte der Baseler Ausschuss für Bankenaufsicht eine revidierte Fassung der Mindestanforderungen an Eigenkapital für Marktrisiken, die am 01.01.2023 in Kraft treten wird. Diese Arbeit beschäftigt sich mit dem auf Sensitivitäten basierenden Standardansatz und dem Vereinfachten Standardansatz. Neben der Darstellung und kritischen Analyse beider Ansätze wird untersucht, wie sich die Ansätze in ihren Auswirkungen auf die Eigenkapitalanforderungen unterscheiden. Zudem werden die Ergebnisse für Instrumente mit Ausfallrisiko mit denen des Standardansatzes des Bankbuchs verglichen. Insbesondere wird gezeigt, dass der auf Sensitivitäten basierende Standardansatz konzeptionelle und technische Schwachstellen aufweist. Er ist zudem unnötig kompliziert und läuft so der vom Baseler Ausschuss selbst formulierten Forderung nach mehr Transparenz und Vereinfachung zuwider.In January 2019, the Basel Committee on Banking Supervision published a revised version of the minimum capital requirements for market risk, which will take effect on January 1, 2023. This paper focuses on the sensitivity-based standardized approach and the simplified standardized approach. In addition to presenting and critically analyzing both approaches, the paper examines how the approaches differ in their impact on capital requirements. Moreover, the results for instruments with default risk are compared with those of the standardized approach for the banking book. In particular, it is shown that the sensitivity-based standardized approach has conceptual and technical weaknesses. It is also unnecessarily complicated and thus runs counter to the Basel Committee's own call for greater transparency and simplification.Published Versio
Up-to-the-Minute Privacy Policies via Gossips in Participatory Epidemiological Studies
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Political incentives to promote electric vehicles: Results from a stated adaption experiment
Get PDFThe goal to limit global warming requires a shift to electric vehicles and a simultaneous reduction of
vehicles in total. To achieve this transition in Germany, the government needs to provide financial
incentives or disincentives for vehicle users. The potential effect of different price regulations towards
the goal has been assessed by surveying 466 respondents. After providing detailed information on all
mobility tools in the household, in a stated adaptation experiment, respondents were faced with four
seenarios with varying price regulations concerning prices for fuel, electrieity, publie transport, CO2
and taxes. Given the reported mobility tools and supported by live calculation of resulting cost changes,
respondents were asked 10 adapt their household fleet while being allowed to choose the mobility tools
at a high level of detail. The paper presents the survey design, deseriptive analysis, and multiple
discrete-continuous choice model as the intended analytical approach.Published Versio
Public Debt and its potential Challenges for advanced Economies
Get PDFThis paper analyzes the challenges of public debt from the point of view of advanced economies. It identifies austerity as well as the utilization of favorable investment conditions in a low-interest rate environment as the main positions in academia and politics to approach public debt. However, by conducting case studies on Japan's lost decades, the global financial crisis / eurozone crisis an COVID-19, the paper finds that there are no one-size-fits-all solutions towards debt. Although public debt accumulation in advanced economies is mainly driven by repeated crisis situations with weak recoveries instead of financial profligacy, many challenges remain in dealing with this debt accumulation. These include amongst others demographic change, ensuring successful public investment, keeping interest rates low through expansionary monetary policy in an environment of high inflation, avoiding doom loops, implementing efficient private sector regulation etc. Especially in the eurozone further fiscal integration while avoiding moral hazards will be a key challenge to ensure financial stability. The paper shows that public debt is an issue that advanced economies need to pay attention to. This is even more important in an environment of secular stagnation where monetary policy loses its importance against fiscal policy. However, a high public debt level as a main determinant of a country’s debt sustainability seems to have lost a certain degree of importance in recent years
Feldbericht zur ersten Befragungswelle 2020 im Forschungsprojekt „Nachhaltige Mobilität in Pilotgebieten des Sozialen Wohnungsbaus“
Get PDFDieses Projekt (HA-Projekt-Nr: 686/19-06) wird aus Mitteln des Förderprogramms
Elektromobilität in Hessen gefördert
Inhomogenous risk exposure in dual insurance system: selection effects in Germany’s long-term care plans
Get PDFGefördert im Rahmen des Projekts DEALPublished Versio
