6,088 research outputs found
Measurement of Common Risk Factors: A Panel Quantile Regression Model for Returns
This paper investigates how to measure common market risk factors using newly
proposed Panel Quantile Regression Model for Returns. By exploring the fact
that volatility crosses all quantiles of the return distribution and using
penalized fixed effects estimator we are able to control for otherwise
unobserved heterogeneity among financial assets. Direct benefits of the
proposed approach are revealed in the portfolio Value-at-Risk forecasting
application, where our modeling strategy performs significantly better than
several benchmark models according to both statistical and economic comparison.
In particular Panel Quantile Regression Model for Returns consistently
outperforms all the competitors in the 5\% and 10\% quantiles. Sound
statistical performance translates directly into economic gains which is
demonstrated in the Global Minimum Value-at-Risk Portfolio and Markowitz-like
comparison. Overall results of our research are important for correct
identification of the sources of systemic risk, and are particularly attractive
for high dimensional applications
Research and development of an airborne multispectral scanner to measure fire, terrestrial and atmospheric characteristics (50 channel)
The AB184 Spectrometer and the AC12206 High Temperature Blackbody Reference Source Assembly were both successfully developed during this contract effort. The newly developed hardware provide a means of quantifying the spectral characteristics of high temperature fire scenes
A Human-centric Perspective on Digital Consenting: The Case of GAFAM
According to different legal frameworks such as the European General Data Protection Regulation (GDPR), an end-user's consent constitutes one of the well-known legal bases for personal data processing. However, research has indicated that the majority of end-users have difficulty in understanding what they are consenting to in the digital world. Moreover, it has been demonstrated that marginalized people are confronted with even more difficulties when dealing with their own digital privacy. In this research, we use an enactivist perspective from cognitive science to develop a basic human-centric framework for digital consenting. We argue that the action of consenting is a sociocognitive action and includes cognitive, collective, and contextual aspects. Based on the developed theoretical framework, we present our qualitative evaluation of the consent-obtaining mechanisms implemented and used by the five big tech companies, i.e. Google, Amazon, Facebook, Apple, and Microsoft (GAFAM). The evaluation shows that these companies have failed in their efforts to empower end-users by considering the human-centric aspects of the action of consenting. We use this approach to argue that their consent-obtaining mechanisms violate principles of fairness, accountability and transparency. We then suggest that our approach may raise doubts about the lawfulness of the obtained consent—particularly considering the basic requirements of lawful consent within the legal framework of the GDPR
Trump supporters' resistance to social justice efforts is driven by their meritocratic ideology, not bias.
Trump supporters are more resistant to social justice efforts than other Americans, but not because of bias. Rather, many Trump supporters are "rugged meritocratists"- those who resist social justice efforts because they believe that American society is already fair. Erin Cech argues that if rugged meritocratists are to heed calls for social justice, they must first be convinced that inequality actually exists. ..
Future family plans don’t influence how men and women choosetheir college major or occupation
Many traditional social science theories explain the persistence of occupational segregation between men and women with the idea that anticipating family responsibilities, women choose qualifications and jobs which will lead them to presumably more flexible women-dominated occupations. In new research which examines the future plans of college students, Erin A. Cech finds that only a small minority of women had integrated family plans into their career choices by seeking a financially stable occupational field or one which might be more flexible
Optimum Currency Area Indices - How Close is the Czech Republic to the Eurozone?
In this paper we provide a survey of the optimum currency area theory, estimate the degree of the explanatory power of the optimum currency area criteria, and also calculate the optimum currency area index in the case of the Czech Republic. The results indicate that the traditional optimum currency area criteria to certain extent explain exchange rate variability. Our results may be interpreted as an attempt to assess the benefit-cost ratio of implementing a common currency for a pair of countries. Our results also suggest that from the point of view of the optimum currency area theory the costs of adopting the euro for the Czech Republic may be relatively low, at least in comparison with other EMU member countries. We conclude that if the European Monetary Union is sustainable, the accession of the Czech Republic should not change it.Convergence, EU/eurozone, exchange rate, optimum currency area theory, transition.
ERM II Membership - the View of the Accession Countries
With EU accession looming, a new chapter has been opened in the debate about the candidate countries' exchange rate strategies. A heated discussion has arisen in relation to ERM2 membership. The experience of the present eurozone members with ERM/ERM2 membership shows that none of them faced a significant challenge in the two-year 'evaluation' period in terms of the exchange rate stability convergence criterion. This could also be attributable to the stability policies prescribed by the Maastricht Treaty. However, for catching-up countries in the run-up to joining the eurozone, given the existing functioning of the mechanism, the ERM2 appears be of little help for ensuring exchange rate stability. The mechanism should be viewed rather as a tool for 'persuading' the markets of the appropriateness of the euro-locking rate. Since the Maastricht rules do not allow downward adjustment of the central parity within the ERM2 for two years before introduction of the euro, the authorities should be familiar with the preferred real exchange rate path prior to entering the mechanism. We conclude that countries could face large costs if they fail to do so.EU/eurozone, convergence, exchange rate, transition.
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