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See detailThe evolution of the right to an effective remedy and to a fair trial in direct and indirect taxation: Are we there yet?
Pantazatou, Aikaterini UL

in Bonelli, Matteo; Eliantonio, Mariolina; Gentile, Giulia (Eds.) Article 47 of the EU Charter and effective judicial protection: The Court of Justice’s perspective (in press)

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See detailMeasuring agreement: How to arrive at reliable measures of opinion congruence between voters and parties.
Lesschaeve, Christophe UL; Padmos, Lars

in Representation (in press)

The extent to which voters and parties agree on policies is an important way through which political scientists have empirically studied political representation. This opinion congruence is most often ... [more ▼]

The extent to which voters and parties agree on policies is an important way through which political scientists have empirically studied political representation. This opinion congruence is most often measured by comparing preferences on a number of policy statements. While the selection of policy statements has not escaped scholarly attention, its impact on the reliability of congruence scores, i.e. the degree to which similar levels of opinion congruence are found when different samples of policy statements are used, has been less investigated. This article looks at which factors of statements samples and voters affect the reliability of congruence measures. It does so by simulating over 5 million opinion congruence scores on the basis of a dataset containing 134 voter and party policy preferences. It finds that both the number of statements and their topic diversity positively affect the reliability of congruence estimates. In addition, the congruence estimates of politically less sophisticated voters are more reliable but only when many left-right policy statements are included in the statement selection. Finally, explorative analyses suggest that increasing topic diversity also increases the validity of congruence measures. [less ▲]

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See detailAuswirkungen der Grenzschließungen auf die systemrelevanten Arbeitskräfte und den grenzüberschreitenden Arbeitsmarkt in der Großregion während der Covid-19-Pandemie
Nienaber, Birte UL; Funk, Ines; Dörrenbächer, H. Peter et al

in Brodowski, Dominik; Nesselhauf, Jonas; Weber, Florian (Eds.) Pandemisches Virus - nationales Handeln (in press)

With the border closures in spring 2020, it became difficult for cross-border workers - also in the so-called "Großregion" / "Grande-Région" - to reach their jobs. Especially essential workers in the ... [more ▼]

With the border closures in spring 2020, it became difficult for cross-border workers - also in the so-called "Großregion" / "Grande-Région" - to reach their jobs. Especially essential workers in the health, rescue and industrial sectors were at the centre of the debate about a lack of solidarity between the different border regions and countries. This article analyses the impact of border closures on different aspects of solidarity in the Greater Region, the border region with the highest number of cross-border workers in Europe. Solidarity as a European value has been put to the test - both between countries (e.g. through the 'theft' of key labour and border controls making cross-border mobility almost impossible) and between different groups of workers, such as teleworkers and non-teleworkers, as well as between cross-border commuters and non-cross-border commuters, who have been treated differently, for example through short-time working schemes (e.g. in the health sector). [less ▲]

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See detailA theory-driven design framework for smartphone applications to support healthy and sustainable grocery shopping
Blanke, Julia UL; Billieux, Joel; Vögele, Claus UL

in Human Behavior and Emerging Technologies (in press)

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See detailThe distributive impact of the Luxembourg tax-benefit system: a more comprehensive measurement
Vergnat, Vincent; d'Ambrosio, Conchita UL; Liégeois, Philippe

in Public Finance Review (in press)

This article studies the distribution of income in Luxembourg by integrating two aspects that have been previously neglected: indirect taxation and in-kind transfers. The integration of the latter is ... [more ▼]

This article studies the distribution of income in Luxembourg by integrating two aspects that have been previously neglected: indirect taxation and in-kind transfers. The integration of the latter is essential in Luxembourg, the country with the highest public expenditure per capita in the OECD. These issues have been understudied because of some methodological challenges, including the lack of data containing all the necessary information for this type of analysis. However, with the EUROMOD microsimulation model, different data sources, and imputation methods, we are able to obtain a more complete view of the income distribution in Luxembourg. We find that, as in many developed countries, indirect taxes are regressive. On the other hand, in-kind transfers play an important role in reducing income inequality, in particular through education and health services. [less ▲]

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See detailAsynja: Sensorial Design for Running Motivation
Menheere, Daphne; Hilderink, Myrthe; Vos, Steven et al

in IASDR 2021: 9th Congress of the International Association of Societies of Design Research (in press)

If starting to run is an easy decision, committing to a long-term running routine proves to be a more challenging endeavor for many people. In this pictorial, we unravel the design process of Asynja, an ... [more ▼]

If starting to run is an easy decision, committing to a long-term running routine proves to be a more challenging endeavor for many people. In this pictorial, we unravel the design process of Asynja, an artefact that triggers exercise imagery by using natural scents related to running. Relying on peripheral interaction, this research probe subtly nudges users to go running, thereby supporting them to transform their positive intentions into actions. Exploring sensoriality as a design opportunity for behavior change interventions, we invite the community to expand the design space of exercise-related motivational products and systems. [less ▲]

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See detailUX Needs Cards – A Pragmatic Tool to Support Experience Design Through Psychological Needs
Lallemand, Carine UL

in IASDR 2021: 9th Congress of the International Association of Societies of Design Research (in press)

The psychological needs-driven UX approach is a well-explored area in UX research and a powerful framework for the design of optimal experiences with systems and products. However, the transfer from ... [more ▼]

The psychological needs-driven UX approach is a well-explored area in UX research and a powerful framework for the design of optimal experiences with systems and products. However, the transfer from research to practice is slow and this approach is not yet widely used by practitioners. As card- based methods have been shown to support designers in both the generation of ideas and the evaluation of their designs, we created the UX needs cards as a pragmatic tool able to support a needs-driven UX process. We present the iterative development of the card-set and its associated techniques and report on three use cases, demonstrating the effectiveness of this tool for user research, idea generation and UX evaluation. Our empirical findings suggest that the UX needs cards are a valuable tool able to support design practice, being easily understood by lay users and a source of inspiration for designers. Acting as a tangible translation of a research framework, the UX needs cards promote theory-driven design strategies and provide researchers, designers, and educators with a tool to clearly communicate the framework of psychological needs. [less ▲]

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See detailDISCOV: Stimulating Physical Activity through an Explorative Interactive Walking Experience
van Renswouw, Loes; Verhoef, Jasmijn; Vos, Steven et al

in IASDR 2021: 9th Congress of the International Association of Societies of Design Research (in press)

Aware of the consequences of their inactive lifestyles, many people still struggle to integrate enough physical activity into their busy lives. Interventions that nudge to reinforce existing active ... [more ▼]

Aware of the consequences of their inactive lifestyles, many people still struggle to integrate enough physical activity into their busy lives. Interventions that nudge to reinforce existing active behavior seem therefore more likely to be effective than those adding an activity to daily routines. To encourage people to increase their physical activity level, we designed Discov, a network of physical waypoints triggering people to lengthen their walks. Placed in a public park, Discov encourages people to explore their surroundings in a fun and challenging way by creating an interactive walking experience. Adopting a Research-through-Design approach, we explore the potential of the design of accessible infrastructures and human-environment interactions to impact public health by nudging citizens into being more physically active. We discuss insights gathered through this process and report on first user tests of this interactive walking experience. [less ▲]

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See detailShort-Packet Communications in Multi-Hop Networks with WET: Performance Analysis and Deep Learning-Aided Optimization
Nguyen, Toan Van; Nguyen, van Dinh UL; Costa, Daniel Benevides da et al

in IEEE Transactions on Wireless Communications (in press)

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See detailAlgorithmic Trading in Experimental Markets with Human Traders: A Literature Survey
Neugebauer, Tibor UL; Nekrasova, Elizaveta UL; Bao, Te et al

in HANDBOOK OF EXPERIMENTAL FINANCE (in press)

This chapter surveys the nascent experimental research on the interaction between human and algorithmic (bot) traders in experimental markets. We first discuss studies in which algorithmic traders are in ... [more ▼]

This chapter surveys the nascent experimental research on the interaction between human and algorithmic (bot) traders in experimental markets. We first discuss studies in which algorithmic traders are in the researcher’s hands. Specifically, the researcher assigns computer agents as traders in the market. We then followed it up by discussing studies in which the researcher allows human traders to decide whether to employ algorithms for trading or to trade by themselves. The paper introduces the types and performances of algorithmic traders that interact with human subjects in the laboratory, including zero-intelligent traders, arbitragers, fundamentalists, adaptive algorithms, and manipulators. We find that whether algorithm traders earn more profit than human traders crucially depends on the asset’s fundamental value process and the market environment. The potential impact of interactions with algorithms on the investor’s psychology is also discussed. [less ▲]

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See detailPrincipe de précaution (et changement climatique)
Donati, Alessandra UL

in Torre-Schaub M. e.a. (eds.), Dictionnaire du changement climatique (in press)

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See detailThe precautionary principle under EU law: a postmodern principle in a post-truth era
Donati, Alessandra UL

in Farah, Paolo (Ed.) Science, Policy and International Law (in press)

We live in a post-truth society, where “objective facts are less influential in shaping public opinion than appeals to emotion and personal belief.” In this context, the core claim of this chapter is that ... [more ▼]

We live in a post-truth society, where “objective facts are less influential in shaping public opinion than appeals to emotion and personal belief.” In this context, the core claim of this chapter is that to understand the definition and implications of the post-truth society, it is necessary to analyze the theoretical framework under which the concept of post-truth emerged: post-modernism. Under the theoretical framework of post-modernism, the analysis of the precautionary principle is utterly significant since it can be defined as a “paradigmatic principle” of post-modern law. Indeed, as this chapter will demonstrate, the precautionary principle shares the same features of flexibility (in its double dimension of smooth and adaptable principle) and complexity (as an interdisciplinary principle negotiated by scientific experts and political decision-makers) that belong to post-modern principles. [less ▲]

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See detail„Ich will mein altes Leben zurück“ – Einblicke in die veränderten Beziehungen, Aktivitäten und das Wohlbefinden luxemburgischer Kinder in der Pandemie
Kirsch, Claudine UL; Neumann, Sascha

in Diskurs Kindheits- und Jugendforschung (in press)

The Covid-19 pandemic has changed children's lives. This paper presents the changes during the pandemic of children’s well-being, relationships and everyday activities from the perspective of six to ... [more ▼]

The Covid-19 pandemic has changed children's lives. This paper presents the changes during the pandemic of children’s well-being, relationships and everyday activities from the perspective of six to twelve-year-olds in Luxembourg. The data draw on interviews carried out in 2020 and standardised surveys in 2020 and 2021. The results show that all children were affected by the pandemic but experienced it differently. Many children expressed fears and worries right at the beginning of the pandemic and these emotions intensified over time. Their leisure time activities shifted from more outside to more domestic activities during the pandemic which in our view corresponds to an intermediate “domestication of childhood”. The survey in the summer of 2021 confirms that many of these changes remained or intensified. [less ▲]

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See detailTranslanguaging in frühkindlichen Bildungseinrichtungen in Luxemburg – mehrsprachiges Handeln von Kindern und Pädagoginnen
Kirsch, Claudine UL; Mortini, Simone; Kemp, Valérie UL

in Meier, Jörg; İnci, Dirim; Blaschitz, Verena (Eds.) Handbuch Mehrsprachigkeit (in press)

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See detailWhen the Going Gets Tough, Do the Tough Go Shopping?
Pan, Xiaodan; Dresner, Martin; Mantin, Benny UL

in Journal of Business Logistics (in press)

This study examines the impacts of consumer confidence on stockpiling behavior and, subsequently, retail inventory management. We show how stockpiling behavior evolved during the “Great Recession” of 2008 ... [more ▼]

This study examines the impacts of consumer confidence on stockpiling behavior and, subsequently, retail inventory management. We show how stockpiling behavior evolved during the “Great Recession” of 2008-2009 as consumer confidence waned and demonstrate the impact of this development on inventory management. Drawing on the two-segment household inventory theory consisting of non-stockpiling and stockpiling segments, we use a panel dataset (2005-2015) to calibrate household inventory holdings. This dataset then serves as input for a retailer-level case study. Our empirical analysis reveals significant impacts from changing stockpiling behavior. When consumer confidence is low, both stockpiling and non-stockpiling segments respond by reducing weekly consumption rates; however, the stockpiling segment also significantly lengthens the time between shopping trips, and ultimately increases the duration of inventory holdings. These changes to consumption and stockpiling add complexity to inventory planning, requiring retailers to carefully adjust inventory levels to maintain service levels. [less ▲]

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See detailLocal scaling limits of Lévy driven fractional random fields
Pilipauskaite, Vytauté UL; Surgailis, Donatas

in Bernoulli (in press)

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See detailSemiparametric estimation of McKean-Vlasov SDEs
Belomestny, Denis; Pilipauskaite, Vytauté UL; Podolskij, Mark UL

in Annales de l'Institut Henri Poincaré (B), Probabilités et Statistiques (in press)

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See detailRevising the justification for an EU tax in a post-crisis context
Pantazatou, Aikaterini UL

in de Cogan, Dominic; Brassey, Alexis (Eds.) Tax Law in Times of Crisis and Recovery (in press)

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See detailLuxembourg. ECEC Workforce profile
de Moll, Frederick UL; Kemp, Valérie UL; Simoes Lourêiro, Kevin UL et al

Report (in press)

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See detailMomentary Subjective Age is Associated with Perceived and Physiological Stress in the Daily Lives of Old and Very Old Adults
Kornadt, Anna Elena UL; Pauly, Theresa; Schilling, Oliver et al

in Psychology and Aging (in press)

Subjective age, that is the age people feel in relation to their chronological age, can vary on a day-to-day and even momentary basis. Previous long-term and daily-diary studies have shown that elevated ... [more ▼]

Subjective age, that is the age people feel in relation to their chronological age, can vary on a day-to-day and even momentary basis. Previous long-term and daily-diary studies have shown that elevated stress covaries with older subjective age. However, it is an open question whether such links can also be observed at the momentary level within a given day and go beyond self-reports of stress. Moving ahead, we investigated how two indicators of stress (self-reported: perceived stress; physiological: salivary cortisol) are associated with the age people feel on a momentary basis. We examined data from 118 older (Mage = 66.67 years) and 36 very old adults (Mage = 85.92 years) who reported their momentary subjective age and perceived stress and also provided saliva samples up to seven times a day over seven consecutive days. Dynamic structural equation models showed that both higher momentary perceived stress and higher cortisol levels preceding the measurement predicted an older momentary subjective age. In contrast, subjective age at the previous measurement did not predict subsequent stress. These effects were moderated by participant age group and grip strength, albeit not consistently. Our results corroborate and extend earlier findings that both self-reported and physiological stress are important explanatory variables for people’s subjective age variation even on relatively short time scales, and shed light on differential time-ordered dynamics between stress and subjective age in daily life. Findings also inform theoretical models of subjective age that highlight the importance of contextual, momentary influences on how old people feel and help better understand how biological and psychological processes are intertwined in later life. [less ▲]

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