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.jbankfin.2009.12.008

Abstract: The aim of this paper is to examine the role of gold in the global financial system. We test the hypothesis that gold represents a safe haven against stocks of major emerging and developing countries. A descriptive and econometric analysis for a sample spanning a 30 year period from 1979 to 2009 shows that gold is both a hedge and a safe haven for major European stock markets and the US but not for Australia, Canada, Japan and large emerging markets such as the BRIC countries. We also distinguish between a weak and strong form of the safe haven and argue that gold may act as a stabilizing force for the financial system by reducing losses in the face of extreme negative market shocks. Looking at specific crisis periods, we find that gold was a strong safe haven for most developed markets during the peak of the recent financial crisis.

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Copy reference link   DOI: 10.1057/jors.2009.80

Abstract: The paper presents an empirical method to infer employers' requirements of operational research (OR) skills by analysing the text of online job ads using content analysis. The method entailed collecting more than a thousand job ads from online sources, creating a hierarchy of sets of OR-related words and phrases, and then analysing the job ads using content analysis software to count the numbers of ads using the hierarchy of words and phrases. The method is particularly well suited for the periodic analysis of job ads to understand changes and trends, and is replicable in that, when carried out using our proposed keywords, it would yield the same results for any set of OR job ads.

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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.

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Copy reference link   DOI: http://dx.doi.org/10.1016/j.asieco.2009.04.008

Abstract: This paper proposes a multivariate test to measure the statistical and economic significance of contagion through analysis of extreme unobserved common shocks. Contagious episodes are endogenously determined with no need, but the possibility, to specify the source country. Application to a panel of equity returns during the Asian crisis of 1997–1998 finds that interdependencies are substantially more important than contagion. However, the periods of contagion evident show that it is short-lived, split between positive and negative movements and reverses quickly. In comparison to other Asian crisis countries, Hong Kong is the main driver of contagion in the crisis. The proposed methodology and the empirical findings provide a more detailed picture of contagion than commonly applied tests.

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Copy reference link   DOI: 10.3233/MGS-2009-0130

Abstract: Service composition on the Grid is a challenging task as documented in existing research work. Even though there are initial attempts to use the Business Process Execution Language (BPEL) to compose services on the Grid, still there is a significant lack of flexibility and reusability needed in scientific applications. In this paper we present BPEL for Semantic Web Services (BPEL4SWS) – a language that facilitates the orchestration of Grid Services exposed as traditional Web Services or Semantic Web Services using a process-based approach. It is based on the idea of WSDL-less BPEL and incorporates semantic descriptions of process activity implementations which increases the flexibility of business workflows as well as scientific workflows. Following an approach that uses a set of composable standards and specifications, BPEL4SWS is independent of any Semantic Web Service framework and therefore can also utilize any kind of Semantic Grid services. The advantages of BPEL4SWS are: (1) compliance with standards, (2) independence on service technologies, (3) applicability for both business applications as well as scientific workflows that use Grid services, (4) improved flexibility of processes.

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Copy reference link   DOI: doi:10.1080/14697010903360608

Abstract: This questionnaire-based study investigated the relationship between two aspects of leadership (charismatic leadership and trust in top management) and followers’ innovation implementation behavior. Findings from 194 employees working in R&D teams of a multinational automotive company indicated that charismatic leadership and trust in top management were both positively related to innovation implementation behavior, controlling for followers’ individual differences, management level, and department affiliation. The findings demonstrate that both relationships were mediated by followers’ affective commitment to change. Results implicate the need to more closely bond the concepts of affective commitment to change and innovation implementation behavior and consider their connection in future investigations.

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Copy reference link   DOI: 10.1007/s10551-008-0008-6

Abstract: Two large online surveys were conducted among employees in Germany to explore the importance employees and organizations place on aspects of interpersonal respect in relation to other work values. The first study (n = 589) extracted a general ranking of work values, showing that employees rate issues of respect involving supervisors particularly high. The second study (n = 318) replicated the previous value ranking. Additionally, it is shown that the value priorities indicated by employees do not always match their perceptions of actual organizational practices. Particularly, interpersonal respect issues that involve employees’ supervisors diverge strongly negative. Consequences and potentials for change in organizations are discussed.

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Copy reference link   DOI: 10.1287/trsc.1070.0226

Abstract: Regulations regarding drivers’ working hours often have a big impact on total transit times, i.e., the time required for driving periods, breaks, and rest periods. Although of particular importance for many real-life applications, they have received only very little attention in the vehicle routing literature. This paper describes the new regulations for drivers’ working hours in the European Union that entered into force in April 2007. According to the new regulations, motor carriers must organise the work of drivers in such a way that drivers are able to comply with the respective regulations and are made liable for infringements committed by the drivers. This paper shows how motor carriers can schedule driving periods, breaks, rest periods, and handling activities, and presents a large neighbourhood search algorithm capable of generating vehicle tours complying with the new regulations.

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Copy reference link   DOI: 10.1080/17446540802389032

Abstract: This article is the first to study momentum trading strategies in the Irish stock market. The findings can be summarized as follows: (i) unconditional momentum trading strategies do not outperform the market, (ii) winner and loser trading strategies do outperform the market and (iii) controlling for heteroscedasticity significantly changes the results and yields positive and significant excess returns for most of the 16 momentum trading strategies analysed. These findings illustrate that investors can persistently earn excess returns in the Irish stock market.

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