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Peer Reviewed
See detailThe value of the liminal position
Valsiner, Jaan UL

in Dost-Gözkan, Ayfer; Sonmez Keith, Doga (Eds.) Norms, groups, conflict and social change: Rediscovering Muzafer Sherif’s psychology (2015)

Detailed reference viewed: 24 (0 UL)
See detailValue orientations and solidarity in intergenerational family relations
Albert, Isabelle UL; Michels, Tom; Ferring, Dieter UL

in Invited talk at the Colloquia Psychologica, Sminatio internazionale. Athenaeum Center for Family Studies and Research – Catholic University of Milan, Milan, Italy. (2008)

Detailed reference viewed: 23 (0 UL)
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Peer Reviewed
See detailThe value relevance of SAM’s corporate sustainability ranking and GRI sustainability reportingin the European stock markets
Kaspereit, Thomas UL; Lopatta, Kerstin UL

in Business Ethics : A European Review (2016), 25(1), 1-24

This paper investigates whether relative corporate sustainability as measured by the SAM sustainability ranking and sustainability reporting in terms of Global Reporting Initiative (GRI) application ... [more ▼]

This paper investigates whether relative corporate sustainability as measured by the SAM sustainability ranking and sustainability reporting in terms of Global Reporting Initiative (GRI) application levels are associated with a higher market valuation. We conduct a value relevance study for the 600 largest European companies with the Feltham and Ohlson valuation model as a reference point. Our results indicate that for the observation period 2001 to 2011, the association between corporate sustainability and market value is positive. The empirical evidence of a positive relationship between GRI reporting and market value is statistically significant in some but not all of the model specifications. We find no evidence of interaction between the value relevance of corporate sustainability and sustainability reporting, nor do we find any positive effect of external assurance on the capital market perception of GRI application levels. Our results support the notion that conducting business in accordance with ethical norms is also a shareholder valueincreasing business strategy. However, it is not possible to verify the information given in sustainability reports through external assurance. [less ▲]

Detailed reference viewed: 128 (9 UL)
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Peer Reviewed
See detailValue Stream Management in high variability production systems
Oberhausen, Christof UL; Weber, Daniel; Plapper, Peter UL

in SSRG International Journal of Industrial Engineering (2015), 2(1), 4

Increasing customer requirements and high pressure from global competition are forcing companies to a holistic optimization of their business and production processes. To ensure the competiveness of ... [more ▼]

Increasing customer requirements and high pressure from global competition are forcing companies to a holistic optimization of their business and production processes. To ensure the competiveness of enterprises in future, it is necessary to introduce a process-oriented view instead of a departmental thinking. This paper describes the application of Value Stream Management by the University of Luxembourg in collaboration with the industrial partner Rotarex S.A., a provider of gas control solutions headquartered in Luxembourg. With the help of Value Stream Analysis and Design, relevant material and information flows are captured, analyzed and finally optimized. [less ▲]

Detailed reference viewed: 230 (37 UL)
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Peer Reviewed
See detailValue Stream Management in the "Lean Manufacturing Laboratory"
Oberhausen, Christof UL; Plapper, Peter UL

in Procedia CIRP (2015, July), 32

The University of Luxembourg has recently launched its learning factory, the “Lean Manufacturing Laboratory”. With the help of this manual assembly line, students gain valuable insights in the operation ... [more ▼]

The University of Luxembourg has recently launched its learning factory, the “Lean Manufacturing Laboratory”. With the help of this manual assembly line, students gain valuable insights in the operation of a manufacturing line as well as in buffer, waste and congestion management. Currently, one of the main research topics at the University of Luxembourg in the field of Lean Management is the further development of the method Value Stream Management (VSM). The application of VSM in the “Lean Manufacturing Laboratory” with a projected focus on industry and service sectors reveals the need for a standardized VSM approach. Thus, one of the research objectives is the development of a common VSM method accompanied by standardized software and process interfaces to ensure robust product and information flows within a company and also throughout supply chains. On the way towards a VSM method as standard, existing VSM approaches have to be investigated and validated. By a detailed comparison of existing VSM approaches, all necessary fields of action for the development of a standardized Value Stream Management approach are shown. [less ▲]

Detailed reference viewed: 186 (12 UL)
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See detailValue Stream Management in the "Lean Manufacturing Laboratory"
Oberhausen, Christof UL

Presentation (2015, July 08)

Detailed reference viewed: 97 (9 UL)
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See detailValue Stream Management Training
Plapper, Peter UL; Oberhausen, Christof UL

Learning material (2016)

The VSM workshop deals with concepts in the area of Value Stream Management, comprising the analysis, design and optimization of internal material and information flows. The VSM workshop was held by Prof ... [more ▼]

The VSM workshop deals with concepts in the area of Value Stream Management, comprising the analysis, design and optimization of internal material and information flows. The VSM workshop was held by Prof. Dr.-Ing. Peter Plapper and M.Sc. Christof Oberhausen, who contribute a profound knowledge in Value Stream Management based on their ongoing research in this field. The one-day VSM workshop is targeted at an audience of 8-12 participants with a background in Lean Engineering or Operational Excellence. [less ▲]

Detailed reference viewed: 121 (8 UL)
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See detailValue Stream Management zur Synchronisation im Unternehmensverbund
Plapper, Peter UL

Scientific Conference (2016, October)

Das Thema „Wertstrom Management“ wird in Luxemburg bereits in der Bachelor Ausbildung vermittelt und für die Master vertieft. In der Forschung erweist dieses Werkzeug großes Potential zur Synchronisation ... [more ▼]

Das Thema „Wertstrom Management“ wird in Luxemburg bereits in der Bachelor Ausbildung vermittelt und für die Master vertieft. In der Forschung erweist dieses Werkzeug großes Potential zur Synchronisation und Optimierung der Wertschöpfung im Unternehmensverbund, das wir hier vorstellen möchten: Mit der Methode VSM lässt sich Verschwendung erkennen und Wertschöpfungspotentiale heben. Die Verschwendung wird damit nicht nur in den produktiven Unternehmensbereichen, sondern auch in indirekten Bereichen und ebenso in Verwaltungsfunktionen und administrativen Abteilungen visualisiert. Man erkennt Möglichkeiten, die Verschwendung abzubauen und die Wertschöpfung zu erhöhen. Bei der praktischen Anwendung dieses leistungsfähigen Werkzeugs erwiesen sich die Schnittstellen zwischen den Unternehmen als immerwährende Quellen von Verschwendung und Ineffizienzen. Hier sind die unterschiedlichen Ausprägungen der Methode VSM hinderlich für eine durchgängige Anwendung dieser Methode. Aus dieser Erkenntnis heraus schlagen wir eine Vereinheitlichung der „Best Practices“ als Industrie Standard bzw. als internationale Norm vor. Im Rahmen der aktuell laufender Forschungsprojekte an der Universität Luxemburg werden Methoden entwickelt, um das Wertstrom Management international zu standardisieren und allgemein zu vereinheitlichen. [less ▲]

Detailed reference viewed: 244 (8 UL)
Peer Reviewed
See detailValue Transmission and Zeitgeist revisited
Boehnke, Klaus; Hadjar, Andreas UL; Baier, Dirk et al

in Schönpflug, Uta (Ed.) Cultural Transmission. Psychological, Developmental, Social and Methodological Aspects (2009)

Detailed reference viewed: 122 (0 UL)
Peer Reviewed
See detailValue-added modeling in primary school: What covariates to include?
Levy, Jessica UL; Brunner, Martin; Keller, Ulrich UL et al

Scientific Conference (2019, August)

Detailed reference viewed: 111 (8 UL)
Peer Reviewed
See detailValue-Added Modelling in Primary and Secondary School: An Integrative Review of 674 Publications
Levy, Jessica UL; Keller, Ulrich UL; Brunner, Martin et al

Scientific Conference (2017, December)

Value-added (VA) modelling aims to quantify the effect of pedagogical actions on students’ achievement, independent of students’ backgrounds (e.g., [1]); in other words, VA strives to model the added ... [more ▼]

Value-added (VA) modelling aims to quantify the effect of pedagogical actions on students’ achievement, independent of students’ backgrounds (e.g., [1]); in other words, VA strives to model the added value of teaching. VA is typically used for teacher and/or school accountability (e.g., [2]). Although, VA models have gained popularity in recent years—a substantial increase of publications is to be observed over the last decade—, there is no consensus on how to calculate VA, nor is there a consensus whether and which covariates should be included in the statistical models (e.g., [3]). The aim of the present study is to conduct a to date non-existent integrative review on VA modelling in primary and secondary education. Starting with an exhaustive literature research in the ERIC, Scopus, PsycINFO, and Psyndex databases, we reviewed and thoroughly classified 674 VA publications from 32 different countries. Half of the studies investigated VA models at teacher level; the remaining looked at school or principal level. 370 studies used empirical data to calculate VA models. Most of these studies explained their covariates, but approximately 15% did not specify the model. Most studies used prior achievement as a covariate, but cognitive and/or motivational student data were almost never taken into consideration. Moreover, most of the studies did not adjust for methodological issues such as missing data or measurement error. To conclude, given the high relevance of VA—it is primarily used for high-stakes decisions— more transparency, rigor and consensus are needed, especially concerning methodological details. References [1] Braun, H. I. (2005). Using student progress to evaluate teachers: A primer on value-added models. Princeton, NJ: Educational Testing Service. [2] Sanders, W. L. (2000). Value-added assessment from student achievement data: Opportunities and hurdles. Journal of Personnel Evaluation in Education, 14(4), 329–339. [3] Newton, X., Darling-Hammond, L., Haertel, E., & Thomas, E. (2010). Value-added modeling of teacher effectiveness: An exploration of stability across models and contexts. Education Policy Analysis Archives, 18(23). [less ▲]

Detailed reference viewed: 126 (25 UL)
Peer Reviewed
See detailValue-added models: To what extent do estimates of school effectiveness depend on the selection of covariates?
Levy, Jessica UL; Brunner, Martin; Keller, Ulrich UL et al

Scientific Conference (2019, September)

Detailed reference viewed: 70 (5 UL)
Full Text
See detailValue-at-risk: A practical introduction
Schiltz, Jang UL

Conference given outside the academic context (2007)

Detailed reference viewed: 34 (1 UL)
See detailValues and ideals in teachers’ professional judgement
Biesta, Gert UL

in Gewirtz, S.; Mahony, P.; Hextall, I. (Eds.) et al Changing teacher professionalism. (2009)

Detailed reference viewed: 263 (0 UL)
See detailValues and valuing at work
de Saint-Georges, Ingrid UL

Presentation (2017, November 20)

Detailed reference viewed: 66 (2 UL)
See detailValuing American options using fast recursive projections
Cosma, Antonio UL

Scientific Conference (2013, July 16)

Detailed reference viewed: 133 (7 UL)
Full Text
See detailValuing American options using fast recursive projections
Cosma, Antonio UL; Galluccio, Stefano; Pederzoli, Paola et al

E-print/Working paper (2015)

We introduce a fast and widely applicable numerical pricing method that uses recursive projections. We characterize its convergence speed. We find that the early exercise boundary of an American call ... [more ▼]

We introduce a fast and widely applicable numerical pricing method that uses recursive projections. We characterize its convergence speed. We find that the early exercise boundary of an American call option on a discrete dividend paying stock is higher under the Merton and Heston models than under the Black-Scholes model, as opposed to the continuous dividend case. A large database of call options on stocks with quarterly dividends shows that adding stochastic volatility and jumps to the Black-Scholes benchmark reduces the amount foregone by call holders failing to optimally exercise by 25%. Transaction fees cannot fully explain the suboptimal behavior. [less ▲]

Detailed reference viewed: 130 (9 UL)
See detailValuing American options using fast recursive projections
Cosma, Antonio UL; Galluccio, Stefano; Pederzoli, Paola et al

Scientific Conference (2016, May)

Detailed reference viewed: 67 (2 UL)
See detailValuing American options using fast recursive projections
Cosma, Antonio UL; Galluccio, Stefano; Pederzoli, Paola et al

Scientific Conference (2014, April)

Detailed reference viewed: 115 (9 UL)