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See detailDoes tax competition increase disparity among jurisdictions?
Han, Yutao; Pieretti, Patrice UL; Zou, Benteng UL

in Review of International Economics (2018)

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See detailDoes the board of directors affect cash holdings? A study of French listed firms
Derouiche, Imen UL; Boubaker, Sabri; Nguyen, Duc Khuong

in Journal of Management and Governance (2015), 19(2), 341-370

Prior studies show that agency conflicts are important in explaining corporate financial policies and that the board of directors is central to corporate governance. In this study, we examine the role of ... [more ▼]

Prior studies show that agency conflicts are important in explaining corporate financial policies and that the board of directors is central to corporate governance. In this study, we examine the role of this governing body in the accumulation of cash reserves. Using a sample of 597 French listed firms during 2001–2007, we find that firms with boards deemed to be effective in mitigating agency problems—that is, those appointing independent directors and splitting chief executive officer and chair positions—accumulate less cash reserves than those with less effective boards. Moreover, two-tier boards are more efficient in mitigating the agency costs of free cash flow, leading to less corporate cash hoarding. These findings support the idea that agency conflicts influence cash management policy and that effective boards of directors play an important disciplinary role in a concentrated ownership setting. [less ▲]

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See detailDoes the body adiposity index (BAI) apply to paediatric populations?
El Aarbaoui, T.; Samouda, H.; Zitouni, D. et al

in Annals of Human Biology (2013), 40(5), 451-458

Objective: Validation of body adiposity index (BAI) in a paediatrics sample; and to develop, if necessary, a valid BAI for paediatrics (i.e. BAIp). Methods: A total of 1615 children (52% boys) aged 5-12 ... [more ▼]

Objective: Validation of body adiposity index (BAI) in a paediatrics sample; and to develop, if necessary, a valid BAI for paediatrics (i.e. BAIp). Methods: A total of 1615 children (52% boys) aged 5-12 years underwent anthropometry. Their body composition was assessed using a foot-to-foot bioimpedance. The validity of BAI=(Hip circumference/Height1.5)-18 was tested by combining correlation and agreement statistics. Then, the sample was split into two sub-samples for the construction of BAIp. A regression was used to compute the prediction equation for BAIp-based percentage of body fat (%BF). Results: The initial BAI over-estimated the %BF of children by 49% (29.6±4.2% versus 19.8±6.8%; p<0.0001). The original methodology led to a BAIp=(Hip circumference/Height0.8) - 38 in children. When compared to BAI, BAIp showed both better correlation (r=0.57; p<0.01 versus r=0.74; p<0.0001) and agreement (ICC=0.34; [95% CI=-0.19-0.65] versus ICC=0.83; [95% CI=0.81-0.84]). However, there were some systematic biases between the two values of %BF as exemplified by the large 95% limit of agreement [-9.1%; 8.8%] obtained. Conclusion: BAI over-estimates the %BF in children. In contrast, BAIp appears as a new index for children's body fatness, with acceptable accuracy. In its current form, this index is valid only for large-scale studies. © 2013 Informa UK Ltd. All rights reserved: reproduction in whole or part not permitted. [less ▲]

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See detailDoes the CAMEL bank rating system follow a pro-cyclical pattern?
Wolff, Christian UL

E-print/Working paper (2015)

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See detailDoes the Canadian economy suffer from Dutch disease?
Beine, Michel UL; Bos, Charles S.; Coulombe, Serge

in Resource and Energy Economics (2012), 34(4), 468-492

We argue that the failure to disentangle the evolution of the Canadian currency from the U.S. currency leads to potentially incorrect conclusions regarding the case of Dutch disease in Canada. We propose ... [more ▼]

We argue that the failure to disentangle the evolution of the Canadian currency from the U.S. currency leads to potentially incorrect conclusions regarding the case of Dutch disease in Canada. We propose a new approach that is aimed at extracting both currency components and energy- and commodity-price components from observed exchange rates and prices. We first analyze the separate influence of commodity prices on the Canadian and the U.S. currency components. We then estimate the separate impact of the two currency components on the shares of manufacturing employment in Canada. We show that between 33 and 39 per cent of the manufacturing employment loss that was due to exchange rate developments between 2002 and 2007 is related to the Dutch disease phenomenon. The remaining proportion of the employment loss can be ascribed to the weakness of the U.S. [less ▲]

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See detailDoes the construct of Internet addiction reflect a single entity or a spectrum of disorders?
Starcevic, Vladan; Billieux, Joël UL

in Clinical Neuropsychiatry (2017), 14(1), 5-10

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See detailDoes the Development of Alternative Energy Technologies Allow for New Forms of Coopetition?
Galich, Ante UL; Marz, Lutz

in Organizacija = Organization - Journal of Management, Information Systems and Human Resources (2012), 45(2), 50-58

The article at hand illustrates how new types of coopetition emerge in the transformation of large technical systems. It builds on the latest literature on coopetition and highlights diverse institutional ... [more ▼]

The article at hand illustrates how new types of coopetition emerge in the transformation of large technical systems. It builds on the latest literature on coopetition and highlights diverse institutional arrangements for coopetition, their effects on the actual innovation and the potential benefits for the firms involved. In contrast to many incremental innovations, the transformation of large technical systems requires the cooperation of many diverse actors as various resources are needed. This does not only open up the opportunity of new private-private or public-private cooperations but also brings about various new forms of commonly performed practices. [less ▲]

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See detailDoes the expansion of regional cross-border banks affect competition in Africa? Indirect evidence
Leon, Florian UL

in Research in International Business and Finance (2016), 37

This article investigates how bank competition has evolved in Africa following the recent penetration and expansion of regional cross-border banks over the past decade. We examine changes in competition ... [more ▼]

This article investigates how bank competition has evolved in Africa following the recent penetration and expansion of regional cross-border banks over the past decade. We examine changes in competition in the banking industry of seven African countries highly affected by this recent phenomenon. The evolution of competition is evaluated through three different non-structural measures of competition (Lerner index, Panzar–Rosse model, and Boone indicator). With the exception of results from the Lerner index, our findings show an intensification of competition since the mid-2000s. This period corresponds to the rapid expansion of regional cross-border banks in the zone, indicating that this expansion has promoted competition in banking sectors in Africa. [less ▲]

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See detailDoes the GARCH Structural Credit Risk Model Make a Difference?
Jin, Xisong UL; Lehnert, Thorsten UL

E-print/Working paper (2011)

In this study, we empirically investigate and evaluate various approaches to structurally assess credit risk using a panel of European banking groups. We consider not only the standard approaches in the ... [more ▼]

In this study, we empirically investigate and evaluate various approaches to structurally assess credit risk using a panel of European banking groups. We consider not only the standard approaches in the literature, but also include models that allow the asset volatility to be stochastic and models that allow for short- and long-term components of default risk. Models are evaluated by comparing their ability to correctly and timely identify changes in risk indicators. Surprisingly, we find that the GARCH structural credit risk model, despite its more sophisticated modeling approach, typically underperforms more basic models. Importantly for macro-prudential policy, the combined Merton/GARCH-MIDAS model performs best and reflects important market events earlier than the other approaches. [less ▲]

Detailed reference viewed: 146 (3 UL)
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See detailDoes the position of correct answers in multiple-choice items influence item difficulty?
Sonnleitner, Philipp UL; Hohensinn, Christine; Kubinger, K.D. et al

Scientific Conference (2009)

Due to economical reasons, the multiple-choice response format is often the preferred response format for test construction, especially in large-scale-assessments which claim for quick processing on the ... [more ▼]

Due to economical reasons, the multiple-choice response format is often the preferred response format for test construction, especially in large-scale-assessments which claim for quick processing on the examinees side and automated scoring on test makers side. As a disadvantage, research on effects of answer-key balancing and various “response sets” indicates an unfavourable influence of the position of correct answers on item difficulty. To examine this effect, two different multiple-choice response formats (“1 out of 6” and “2 out of 5”) were administered in 3 versions each (correct answers at extreme position, middle position or random) in the course of a large-scale competence assessment in reading comprehension. Furthermore, to investigate age-dependent effects this design was applied to 4th and 8th grade students and finally analyzed using the LLTM (Fischer, 1973). Results give useful hints for further test developments, especially in the field of Large-Scale-Assessments. [less ▲]

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See detailDoes uncoupling protein 2 expression qualify as marker of disease status in LRRK2-associated Parkinson's disease?
Grünewald, Anne UL; Arns, Bjorn; Meier, Britta et al

in Antioxidants & redox signaling (2014), 20(13), 1955-60

Mutations in leucine-rich repeat kinase 2 (LRRK2) are the most common known genetic cause of late-onset Parkinson's disease (PD). However, the penetrance of the disease is below 50% at 60 years of age ... [more ▼]

Mutations in leucine-rich repeat kinase 2 (LRRK2) are the most common known genetic cause of late-onset Parkinson's disease (PD). However, the penetrance of the disease is below 50% at 60 years of age. LRRK2 is associated with the mitochondrial membrane, and mutant forms impair the function of the organelle and autophagosome clearance in human cells, including induced pluripotent stem cell-derived neurons. Elevated expression of uncoupling proteins has been identified as the cause of mitochondrial depolarization in human fibroblasts with G2019S LRRK2. To identify factors that contribute to the penetrance of LRRK2 mutations, we studied respiratory chain function, markers of mitochondrial uncoupling, oxidative stress, and autophagy in fibroblasts from affected and unaffected carriers of the G2019S mutation. Independent of disease status, all mutation carriers showed reduced mitochondrial membrane potential, increased proton leakage, and more fragmented mitochondria. However, a significant increase in the expression of uncoupling protein 2 (UCP2) was only detected in affected individuals with the G2019S mutation in LRRK2. Since oxidative stress and autophagic markers were selectively increased in some of the PD patients, we hypothesize that UCP2 expression is upregulated in response to elevated reactive oxygen species generation in affected mutation carriers and that UCP2 mRNA levels might, therefore, serve as markers of disease status in LRRK2-associated PD. [less ▲]

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See detailDoes upward social mobility increase life satisfaction? A longitudinal analysis using British and Swiss panel data
Hadjar, Andreas UL; Samuel, Robin UL

in Research in Social Stratification and Mobility (2015), 39

A main assumption of social production function theory is that status is a major determinant of subjective well-being (SWB). From the perspective of the dissociative hypothesis, however, upward social ... [more ▼]

A main assumption of social production function theory is that status is a major determinant of subjective well-being (SWB). From the perspective of the dissociative hypothesis, however, upward social mobility may be linked to identity problems, distress, and reduced levels of SWB because upwardly mobile people lose their ties to their class of origin. In this paper, we examine whether or not one of these arguments holds. We employ the United Kingdom and Switzerland as case studies because both are linked to distinct notions regarding social inequality and upward mobility. Longitudinal multilevel analyses based on panel data (UK: BHPS, Switzerland: SHP) allow us to reconstruct individual trajectories of life satisfaction (as a cognitive component of SWB) along with events of intragenerational and intergenerational upward mobility—taking into account previous levels of life satisfaction, dynamic class membership, and well-studied determinants of SWB. Our results show some evidence for effects of social class and social mobility on well-being in the UK sample, while there are no such effects in the Swiss sample. The UK findings support the idea of dissociative effects in terms of a negative effect of intergenerational upward mobility on SWB. [less ▲]

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See detailDoes Urbanization Always Foster Human Capital Accumulation
Bertinelli, Luisito UL; Zou, Benteng UL

in Journal of Developing Areas (2008), 41(2), 171-184

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See detailDoes “forced abstinence” from gaming lead to pornography use? Insight from the April 2018 crash of Fortnite’s servers
Castro-Calvo, Jesús; Ballester-Arnal, Rafael; Potenza, Marc et al

in Journal of Behavioral Addictions (2018), 7(3), 501-502

In April 2018, the servers of the popular video game “Fortnite” crashed for 24 hr. During this period, Pornhub (a popular pornographic website) analyzed trends in pornography access, finding that: (a) the ... [more ▼]

In April 2018, the servers of the popular video game “Fortnite” crashed for 24 hr. During this period, Pornhub (a popular pornographic website) analyzed trends in pornography access, finding that: (a) the percentage of gamers accessing Pornhub increased by 10% and (b) the searches of pornographic videos using the key term “Fortnite” increased by 60%. In this letter, we discuss these observations in the context of ongoing debate regarding the validity of “withdrawal” when applied to problematic involvement in video gaming and the potential use of pornography as a “compensation behavior” during the periods of “forced abstinence” from gaming. [less ▲]

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See detailDohody o podpoře a vzájemné ochraně investic členských států Evropské unie a jejich vztah ke komunitárnímu právu
Lickova, Magdalena UL

in Ceska spolecnost pro mezinarodni pravo (Czech Society for International Law) (Ed.) Od kodifikace mezinarodniho prava k jeho fragmentaci (2009)

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See detailDoing Border Research: Entwicklungen und Herausforderungen der Grenz(raum)forschung
Wille, Christian UL

Presentation (2019, January)

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See detailDoing co-constructing the learnable: how do cross-aged children co-construct the learnable in a joint activity
Sunnen, Patrick UL; Arend, Béatrice UL

Scientific Conference (2015, August 07)

From an ethnomethodologically/CA inspired view learning can be conceived as “a jointly produced and publicly inspectable activity of the participants, both in everyday environments and in educational ... [more ▼]

From an ethnomethodologically/CA inspired view learning can be conceived as “a jointly produced and publicly inspectable activity of the participants, both in everyday environments and in educational settings” (Wagner/Pekarek Doehler 2011). Participants display that they are doing learning, i.e. they make learning intersubjectively recognizable and accountable to each other (see Wagner 2011). In this paper we shall focus on the multimodally organised negotiation of what the participants take to be the learnable (see Zemel/Koschmann 2014, Koschmann et al. 2014). By tackling two video- recorded empirical cases , we show how two pairs of cross-aged children situatedly co-construct a learnable while being engaged in an open-ended cooking/baking activity. Our previously designed methodological tool (Arend et al. 2014) allows us to grasp and to visualise the co-construction of joint comitment and mutual understanding within joint activity. Our analyses will show how the children take on different epistemic roles establishing one of them as more knowledgeable with regard to the matter in question (e.g. the ongoing elaboration of dough), and how they jointly produce the learnables as instantiated in the material world in a way that could not be specified a priori. Thus this paper attempts to make a contribution to recent discussions about an emic approach on learning and provides an opportunity to present and to discuss the multimodally embodied co- construction of a learnable in its deepened around view visualisation. References - Arend, B., Sunnen, P., Fixmer, P., Sujbert, M. (2014). Perspectives do matter: ‘Joint Screen’ a promising methodology for multimodal interaction analysis. Classroom Discourse 5 (1), 38-50. - Koschmann, T., Zemel, A., & Neumeister, M. (2014). “Case n’ Point”: Discovering Learning in the Nonce. In Joseph L. Polman et al. (eds.), Learning and Becoming in Practice: The International Conference of the Learning Sciences (ICLS) 2014 (pp. 551-557), Vol. 1, 551-557. - Wagner, J./Pekarek Doehler S. (2011). Unpacking learning in interaction [Panel Abstract]. Program Book of Abstracts of the 10th IEMCA Conference, p. 96. - Wagner, J. (2011). Proceeding from process to product: “Doing learning” and having learned” while exploring material objects [Abstract]. Program Book of Abstracts of the 10th IEMCA Conference, p. 98. - Zemel, A., & Koschmann, T. (2014). ‘Put your fingers right in here’: Learnability and instructed experience. Discourse Studies, Vol 16(2), 163-183. [less ▲]

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See detaildoing csy P in luxembourg – lessons learned from the evaluation of interdepartmental collaboration during the youth Pact 2012-2014
Biewers, Sandra UL; Residori, Caroline UL; Willems, Helmut UL

in Magda, Nico; Taru, Marti; Potočnik, Dunja (Eds.) et al Needles in haystacks. Finding a way forward for cross-sectoral youth policy (2017)

Cross-sectorality is a well-known aspect of youth policy, but the importance of this aspect does not translate into a common understanding of what cross-sectoral youth policy means and of the ways it can ... [more ▼]

Cross-sectorality is a well-known aspect of youth policy, but the importance of this aspect does not translate into a common understanding of what cross-sectoral youth policy means and of the ways it can be developed. This book is a collection of articles detailing concrete experiences of cross-sectoral youth policy implementation. It starts with the idea that the efficacy and the sustainability of cross-sectoral youth policy depends on the degree and nature of interaction between various youth policy subdomains and levels, ranging from legal frameworks to interinstitutional or interpersonal relations, and from pan-European to local level. By making these examples available, this book will hopefully support the development of a common understanding of what cross-sectoral youth policy means in different countries and settings. The authors themselves reflect the diversity of the people involved in youth policy (policy makers, youth researchers, youth workers and workers in the field of youth) and this work represents their intention to provide these professionals – as well as others interested in the youth field – with the knowledge necessary to implement, in a real-life scenario, cross-sectoral youth policy. [less ▲]

Detailed reference viewed: 71 (11 UL)
See detailDoing Digital Hermeneutics in an Interdisciplinary Setting
van der Heijden, Tim UL

Scientific Conference (2018, October 25)

This contribution examines the conference theme from the perspective of the Doctoral Training Unit (DTU) in ‘Digital History and Hermeneutics’, a four-year interdisciplinary research and training program ... [more ▼]

This contribution examines the conference theme from the perspective of the Doctoral Training Unit (DTU) in ‘Digital History and Hermeneutics’, a four-year interdisciplinary research and training program funded by the Luxembourg National Research Fund (FNR) and hosted by the Centre for Contemporary and Digital History (C2DH) at the University of Luxembourg. The DTU is designed as an experimental platform for collaboration, in which thirteen doctoral candidates with different disciplinary backgrounds – from history, linguistics and philosophy to computer and information science – study and reflect on the epistemological and methodological implications of the ‘digital turn’ on historical research. The presentation takes a look back at the project’s first year, in which the doctoral candidates were introduced to various skills and methods in digital humanities, including text mining, digital source criticism, database structures, data visualization, GIS analysis, tool criticism and algorithmic critique. Based on experiences by the doctoral students themselves as reflected in semi-structured interviews, as well as drawing upon studies in interdisciplinarity, digital humanities, and the role of space(s) in scientific collaborations, the possibilities and challenges will be explored of doing digital history and hermeneutics in an interdisciplinary setting. [less ▲]

Detailed reference viewed: 84 (10 UL)