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»Flexible Arbeitspraktiken: Eine Analyse aus pragmatischer Perspektive«. Traditional human resource management (HRM) research can hardly relate to today's developments in the world of work. Organizational boundaries are blurred because of the complexity due to globalization, digitalization, and demographic changes. In practice, new ways of organizing work can be found that depend on the specifics of the work situation. In this paper, we build on the economics of convention (EC) to elaborate on the current challenges HRM scholarship is confronted with and provide a theoretical lens that goes beyond the tension between market and bureaucracy principles in actual employment settings. We apply EC’s situationalist methodology to examples of the challenging coordination of flexibility in the workplace. We explain two hybrid forms of coordination – compromises and local arrangements – and highlight the dynamics of employment practices in organizations related to these forms. Thereby, we show that different modes of coordination in employment are applied in a fluctuating manner that depends on the specific situations. In doing so, we further seek to remind HRM scholars of the fruitfulness of the pragmatist perspective in analyzing work practices, as well as extending its conceptual toolkit for future analysis.
Disziplinierung ohne politische Diskriminierung: warum es Marktkräfte in der Währungsunion bedarf!
(2019)
Die Reform der Währungsunion sollte folgende zwei Aspekte verknüpfen: einerseits die Übernahme einer stärkeren politischen Stabilitätsverantwortung und andererseits die Stärkung der Marktkräfte. Nur so kann das Prinzip von Eigenverantwortung und Haftung abgesichert werden. Zudem sollte die Politik im Euroraum einen Abwicklungsmechanismus für überschuldete Mitgliedsländer etablieren.
This paper studies option pricing based on a reverse engineering (RE) approach. We utilize artificial intelligence in order to numerically compute the prices of options. The data consist of more than 5000 call- and put-options from the German stock market. First, we find that option pricing under reverse engineering obtains a smaller root mean square error to market prices. Second, we show that the reverse engineering model is reliant on training data. In general, the novel idea of reverse engineering is a rewarding direction for future research. It circumvents the limitations of finance theory, among others strong assumptions and numerical approximations under the Black–Scholes model.
Nach der Euro- und Wirtschaftskrise in den Jahren seit 2010 verzeichnet die Europäische Union (EU) derzeit einen soliden Wirtschaftsaufschwung in allen Mitgliedstaaten. Der Anteil Europas an der Weltwirtschaft beträgt rund 30 Prozent. Das europäische Wirtschaftswachstum ist 2018 mit 2,1 Prozent sogar größer als das in Deutschland mit 1,6 Prozent. Eine Analyse der Dauer von Aufschwungsphasen zeigt, dass Europa im Vergleich zur Weltwirtschaft sogar unerwarteter Spitzenreiter ist. Seit den 1970er-Jahren liegt die durchschnittliche Dauer eines europäischen Wirtschaftsaufschwungs bei über dreißig Quartalen; sie ist mithin deutlich höher als in den USA und Japan.
This paper develops a new methodology in order to study the role of dynamic expectations. Neither reference-point theories nor feedback models are sufficient to describe human expectations in a dynamic market environment. We use an interdisciplinary approach and demonstrate that expectations of non-learning agents are time-invariant and isotropic. On the contrary, learning enhances expectations. We uncover the “yardstick of expectations” in order to assess the impact of market developments on expectations. For the first time in the literature, we reveal new insights about the motion of dynamic expectations. Finally, the model is suitable for an AI approach and has major implications on the behaviour of market participants.
Der AM Field Guide gibt einen ersten strukturierten Überblick in die komplexe und vielschichtige Welt der additiven Fertigungsverfahren. Getrennt nach den Materialien Polymere, Metalle und weitere Matrialien werden die gängisten jeweils auf dem Markt angebotenen AM-Verfahren schematisch dargestellt und der Verfahrenskern in Kurzform beschrieben. Neben den hier dargestellten Hauptverfahren gibt es viele Derivate und Sonderverfahren, die ebenfalls eingesetzt werden, jedoch nicht explizit gezeigt sind. Zu beachten ist, dass in dem jungen Bereich der additiven Fertigung viele Hersteller ihren AM-Anwendungen eigene Namen geben, so dass eine allgemeingültige umfassende Klassifizierung nur ansatzweise erreichbar ist.
Die Passagierzahlen an deutschen Flughäfen steigen konstant. Flughafenmedien bieten daher ein großes Potenzial für Werbetreibende, eine hohe Reichweite zu generieren sowie hochwertige Zielgruppen spezifisch anzusprechen. Insbesondere digitale Werbemedien genießen an Flughäfen eine groß Beliebtheit und werden von der Mehrzahl der Reisenden in der Regel stärker wahrgenommen als analoge Werbung. Sie bleiben besser im Gedächtnis und sorgen für eine willkommene Abwechslung während der oftmals langen Verweildauer am Flughafen.
Today many vertical retailers are operating different sales channels at the same time and are respon-sible for the range of products in all sales channels. The purpose of this paper is to examine whether for vertical fashion retailers a format-specific assortment policy can be observed on the German mar-ket. To investigate this topic in addition to secondary data of a literature research, quantitative prima-ry data was collected through a structured observation by conducting store checks. The combination provides insights into the research topic, allows to build hypotheses and to get a current and specific answer on the research topic. The study revealed all vertical retailers exploit the advantage of unlim-ited capacity of the online shop by offering in this channel mainly the broadest and deepest assort-ment. Within the retail store the vertical retailers focus on offering full-price goods for the current season in full size sets. Compared to the online shop here are less styles sophisticated presented and adjusted on the sales floor. For the outlet channel all brands showed a higher density of products and at least a price reduction of 30 per cent. The present paper is limited by time, depth and language of secondary data collection. As the study only conducted quantitative data within limited observations additional visual data over a longer period is necessary.
The purpose of this paper is to assess if the strategy development of the fashion industry is oriented to the long or short term. Following the theory of dynamic capabilities, this paper argues that a long term strategic orientation can be observed in corporate foresight activities. A multi methodological research approach is chosen to answer the research question. The findings suggest that the fashion industry is lagging behind other industries in terms of future orientation and therefore long-term strategy development, even though the challenges in the business environment are not perceived as less relevant.
The data present in this article affords insides in the characterization of a newly described bi-functional furan-melamine monomer, which is used for the production of monodisperse, furan-functionalized melamine formaldehyde particles. In the related research article Urdl et al., 2019 data interpretations can be found. The furan functionalization of particles is necessary to perform reversible Diels-Alder reactions with maleimide (BMI) crosslinker to form thermoreversible network systems. To understand the reaction conditions of Diels Alder (DA) reaction with a Fu-Mel monomer and a maleimide crosslinker, model DA reaction were performed and evaluated using dynamic FT-IR measurements. During retro Diels-Alder (rDA) reactions of the monomer system, it was found out that some side reaction occurred at elevated temperatures. The data of evaluating the side reaction is described in one part of this manuscript. Additional high resolution SEM images of Fu Mel particles are shown and thermoreversible particle networks with BMI2 are shown. The data of different Fu-Mel particle networks with maleimide crosslinker are presented. Therefore, the used maleimide crosslinker with different spacer lengths were synthesized and the resulting networks were analyzed by ATR-FT-IR, SEM and DSC.
