The KLU faculty, post-docs, and PhD candidates regularly publish the results of their research in scientific journals. You will find a complete overview of all KLU publications below (e.g. articles in peer-reviewed journals, professional journals, books, working papers, and conference proceedings). Search for relevant terms and keywords, or filter the list by name, year of publication or type of publication. The references include DOIs and abstracts where available, and you can download them to your own reference database or platform. We regularly update the database with new publications.

Journal Articles (Peer-Reviewed)

Copy reference link   DOI: http://dx.doi.org/10.1016/j.resourpol.2011.03.003

Abstract: Gold traditionally has been used as a store of value and an inflation hedge. More recently, gold is also viewed as a hedge against uncertainty and a safe haven. This paper demonstrates that many properties regularly associated with gold are only valid in a simple regression framework but significantly change in a multiple regression framework. A descriptive and econometric analysis of gold and US economic and financial variables for monthly data from 1979 to 2011 shows that gold primarily serves as a hedge against a weaker US dollar and against higher commodity prices. In contrast, gold is not a hedge against consumer price inflation. The empirical results also indicate that gold only recently evolved as a safe haven asset.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link   DOI: doi:10.1504/IJPD.2011.038867

Abstract: In open innovation processes, free-revealing of information has proliferated in the wake of distributed electronic communication systems. Many scholars have coined a multitude of concepts to explain this free-revealing phenomenon and to develop models of organising innovation based on it. These models are partly overlapping, partly exclusive, and partly encompassing. In an extensive literature review, we identify five such concepts and research streams: collective invention, user innovation networks, commons-based peer production, crowdsourcing and open-source innovation. We compare and contrast these models along several dimensions. We present an integrative perspective on the five models and derive implications for research and practice.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link   DOI: 10.1007/s11573-011-0490-7

Abstract: For companies, online communities (OCs) have become a potent means of rapidly and easily identifying user needs as a result of the social and technological changes within the Web 2.0. Some OCs even are suited ideally for integration into NPD as they frequently have innovative members. Despite their growing relevance, however, user innovation activities within OCs still are underexplored. The members’ motivations to innovate and contribute to OCs in particular are part of a young line of research requiring further investigation. This research provides an in-depth netnographic analysis of innovative, privately operated OCs dedicated to tangible consumer products. Most fundamentally, we differentiate 1) motives to join OCs, 2) motives to innovate, and 3) motives to publish innovations in OCs. This is the first study to categorize the motives of innovative OC members depending on the stages of their membership as well as situational factors. Our results support companies in understanding and classifying the members’ motives in independent customer OCs. This is a precondition for the development of specific incentives that stimulate innovative user activities in OCs and contribute to customer integration.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link   DOI: 10.1504/IJSTL.2011.041133

Abstract: Containerisation has transformed ocean shipping in a relatively standardised process. Possibilities to differentiate services exist nonetheless as a result of route densities, cargo and customer types, and shipment time sensitivity among other factors. Although yield management and product differentiation models have been extensively discussed in the airline sector, the topic has been the subject of relatively little investigation in liner shipping economics. This paper proposes a liner service differentiation model based on advance booking and explains in what cases two different classes of booking may be profitable. The paper structure is as follows: Section 1 introduces the topic; a review of the literature on pricing in liner shipping is presented in Section 2; this is followed by the explanation of how carriers may effectively price discriminate; Section 4 presents a simple model that accounts for advance booking and two classes of services; and Section 5 concludes.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link

Abstract: Dem deutschen Einkommensteuergesetz wird häufig vorgeworfen, es sei aufgrund seiner zahlreichen Ausnahmeregelungen zu komplex. In der hier beschriebenen Online-Studie (N = 742) wurden 82 Ausnahmen aus dem Einkommensteuergesetz auf ihre Gerechtigkeit und Wichtigkeit sowie die Angemessenheit der angesetzten Freibeträge und Freigrenzen beurteilt. Zusätzlich wurde erhoben, für welche gesellschaftlichen Gruppen Ausnahmeregelungen als gerecht empfunden werden. Es zeigt sich, dass nur wenige Ausnahmen als ungerecht und unwichtig (M < 3) eingeschätzt werden. Allerdings findet sich auch eine Beurteilung als eindeutig gerecht und wichtig (M > 4) nur in einer überschaubaren Fallzahl. Gerechtigkeits- und Wichtigkeitseinschätzungen hängen dabei eng zusammen. Als generell begünstigenswert gelten in erster Linie bedürftige, abhängige und leistungsschwache Gruppen wie Menschen mit Behinderung, Familien oder Kleinunternehmer. Über die verschiedenen Ausnahmen hinweg lässt sich allerdings keine entsprechende klare Struktur in der Bewertung der einzelnen Ausnahmen auffinden. Dabei besteht auch kein korrelationsstatistischer Zusammenhang zwischen sozioökonomischen Daten und der Bewertung der Ausnahmen bzw. den Angaben zu den zu begünstigenden Gruppen. Diese Erkenntnisse ermöglichen Hinweise für zukünftige Modifikationen des Gesetzes.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link   DOI: 10.1007/s10551-009-0087-z

Abstract: Research on work values shows that respectful leadership is highly desired by employees. On the applied side, however, the extant research does not offer many insights as to which concrete leadership behaviors are perceived by employees as indications of respectful leadership. Thus, to offer such insights, we collected and content analyzed employees’ narrations of encounters with respectful leadership (N 1 = 426). The coding process resulted in 19 categories of respectful leadership spanning 149 leadership behaviors. Furthermore, to also harness this comprehensive repertoire for quantitative organizational research, we undertook two more studies (N 2a = 228; N 2b = 412) to empirically derive a feasible item-based measurement of respectful leadership and assess its psychometric qualities. In these studies, we additionally investigated the relationships between respectful leadership as assessed with this new measurement and employees’ vertical and contextual followership as assessed via subordinates’ identification with their leaders, their appraisal respect for their leaders, their feeling of self-determination, and their job satisfaction.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link   DOI: 10.1026/0932-4089/a000020

Abstract: Beim Erklimmen der Karriereleiter haben Frauen nach wie vor viele Hürden zu überwinden. Zur Erklärung einiger dieser Hürden verweist die Forschung auf Arbeiten zu impliziten Führungstheorien. Diese zeigen, dass bei den meisten Personen die Konzepte „Frau“ und „Führung“ schlechter kognitiv miteinander assoziiert sind als die Konzepte „Mann“ und „Führung“. Als Konsequenz, so der Schluss dieser Arbeiten, fällt es Personen im Vergleich schwerer, Frauen als Führungskräfte zu kategorisieren und entsprechend auf diese zu reagieren. In der vorliegenden Arbeit wird untersucht, ob eine inkongruente Stimulation diesem diskriminierenden impliziten Assoziationsmuster entgegenwirken kann. Die Resultate unseres Experimentes mit einem Impliziten Assoziationstest (IAT; N = 77) zeigen, dass Probanden nach Vorlage von Bildern bekannter weiblicher Führungskräfte Frauen ähnlich schnell mit Führung assoziieren können wie Männer. Dieser Effekt trat allerdings stärker bei den Teilnehmerinnen auf, während bei den Teilnehmern keine signifikante Veränderung in der Reaktionszeit gefunden wurde. Hierauf aufbauend diskutieren wir, welche Rolle Bilder im Rahmen von organisationalen Gleichstellungsbestrebungen, beispielsweise als Teil der Unternehmenskommunikation, einnehmen können.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link   DOI: 10.1504/IJBPIM.2010.033173

Abstract: In the scientific field, workflow technology is often employed to conduct computer simulations or computer supported experiments. The underlying IT infrastructure typically comprises resources distributed among different institutes and organisations all over the world. Traditionally, workflows are executed on a single machine while the invoked software is accessed remotely. This approach imposes many drawbacks which are outlined in this paper. To address these weaknesses, we investigate the application of decentralised workflow enactment in the scientific domain. In this context, we explore the employment of process spaces, a middleware for the decentralised execution of workflows. Furthermore, we propose the combination of process spaces with the concept of data references to increase the overall performance of distributed simulations based on workflows. The considerations are discussed with the help of a scenario that calculates and visualises the ink diffusion in water over a period of time.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link   DOI: doi:10.1111/j.1467-8691.2010.00569.x

Abstract: Traditionally the protection of intellectual property is regarded as a precondition for value capture. The rise of open source (OS) software and OS tangible products, so-called open design, has challenged this understanding. Openness is often regarded as a dichotomous variable (open-source vs. closed-source) and it is assumed that online developer communities demand full opening of the product’s source. In this paper we will explore openness as a gradual and multi-dimensional concept. We carried out an Internet survey (N = 270) among participants of 20 open design communities in the domain of IT hardware and consumer electronics. We find that open design projects pursue complex strategies short of complete openness and that communities value openness of software more highly than openness of hardware. Our findings suggest that open design companies can successfully implement strategies of partial openness to safeguard value capture without alienating their developer community.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link   DOI: 10.1007/s10551-011-0790-4

Abstract: To describe leadership as ethical is largely a perceptional phenomenon informed by beliefs about what is normatively appropriate. Yet there is a remarkable scarcity in the leadership literature regarding how to define what is “normatively appropriate.” To shed light on this issue, we draw upon Relational Models Theory (Fiske, 1992, Psychol Rev, 99:689–723), which differentiates between four types of relationships: communal sharing, authority ranking, equality matching, and market pricing. We describe how each of these relationship models dictates a distinct set of normatively appropriate behaviors. We argue that perceptions of unethical leadership behavior result from one of three situations: (a) a mismatch between leader’s and follower’s relational models, (b) a different understanding about the behavioral expression, or preos, of the same relational model, or (c) a violation of a previously agreed upon relational model. Further, we argue that the type of relational model mismatch impacts the perceived severity of a transgression. Finally, we discuss the implications of our model with regard to understanding, managing, and regulating ethical leadership failures.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link   DOI: 10.1080/13594320902978458

Abstract: Although leader–member exchange (LMX) research shows that leaders engage in different kinds of relationships with different followers, it remains somewhat of an enigma why one and the same relationship is often rated differently by a leader and the respective follower. We seek to fill that conceptual void by explaining when and why such LMX disagreement is likely to occur. To do so, we reconsider antecedents of LMX quality perceptions and outline how each party's LMX quality perception is primarily dependent on the perceived contributions of the other party, moderated by perceived own contributions. We then integrate the notion of Implicit Leadership and Followership Theories (ILTs and IFTs) to argue that the currencies of contributions differ between leaders and followers. This dyadic model sets the stage to explain that LMX disagreement can stem from (1) differences in both parties' ILTs as well as both parties' IFTs, but also from (2) differences in perceptions of own and other's behaviour. We conclude by discussing communication as a means of overcoming LMX disagreement and propose an array of potential studies along the lines of our conceptualization.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link

Abstract: Many fouls committed in football (called soccer in some countries) are ambiguous, and there is no objective way of determining who is the "true" perpetrator or the "true" victim. Consequently, fans as well as referees often rely on a variety of decision cues when judging such foul situations. Based on embodiment research, which links perceptions of height to concepts of strength, power, and aggression, we argue that height is going to be one of the decision cues used. As a result, people are more likely to attribute a foul in an ambiguous tackle situation to the taller of two players. We find consistent support for our hypothesis, not only in field data spanning the last seven UEFA Champions League and German Bundesliga seasons, as well as the last three FIFA World Cups, but also in two experimental studies. The resulting dilemma for refereeing in practice is discussed.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link  

Abstract: Services are quintessential in the current economical landscape. Enterprises and businesses at large rely on the consumption and providing of services to ensure their operations and to realize their business offers. That is, nowadays businesses all over the world are interconnected with each other by complex service-centric webs called service networks. The ubiquity and pervasiveness of service networks call for models, methods, mechanisms and tools to understand them and harness their potential. This paper investigates the modelling of the service networks with a focus on business relationships and exchanges of software services among the involved parties. The contribution of this work is threefold. Firstly, we provide an overview of what service networks modelling can offer in combination with Business Process Management (BPM) and Service Oriented Architecture (SOA) technologies. Secondly, we propose a formalism to model service networks that depicts them as aggregations of participants - e.g. enterprises or individuals - that offer, request, consume and provide services to each other. With the goal of providing a foundation for the alignment between service network- and business process models, we finally map the constructs of our service networks modelling formalism to the ones of the Business Process Modelling Notation (BPMN).

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link

Abstract: Beim Thema Geschäftsprozessmanagement (Business Process Management (BPM)) denken wir unweigerlich an Dokumentation und Werkzeugunterstützung für administrative Prozesse wie Kreditgenehmigungs-, Reisebuchungs- und Versicherungsantragsprozesse. Doch auch in anderen Domänen wie der Produktion, dem Systems Management, der Softwareentwicklung, der Forschung oder der Simulation etc. kommen Methoden und Techniken des Geschäftsprozessmanagements zunehmend zum Einsatz. In diesem Artikel stellen wir Anwendungsfälle und BPM-Lösungen für diese Domänen vor und beleuchten die Vorteile, die aus einem durchgängigen BPM-Ansatz entstehen.

Export record: Citavi Endnote RIS ISI BibTeX WordXML

Copy reference link   DOI: doi:10.1080/13675567.2010.482522

Abstract: This study seeks to quantify the value of visibility over assets moving through an multi-modal transportation network. It presents a transportation model combining shipment and route choice and shows how in-transit visibility can be used to adjust the transportation plan with respect to the known state of the transportation system. By simulating the decision making process with different levels of visibility the gradual benefits of in-transit visibility are quantified. Computational experiments show that on-time delivery performance can be significantly improved by increasing the level of visibility.

Export record: Citavi Endnote RIS ISI BibTeX WordXML