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: 10.1016/0167-8116(84)90018-1

Abstract: The special conjoint-analysis problem of estimating the parameters of a continuous nonlinear utility function from ordinal rank order data is investigated. A special purpose estimation method, called NONCON, is proposed that offers two advantages: First, it is capable of directly maximizing Kendall's rank order correlation coefficient T as the appropriate measure of goodness of fit. Second, it requires less computational effort than competing procedures using general purpose conjointanalysis programs. The superiority of NONCON is demonstrated for the estimation of a continuous nonlinear two-parameter utility function the parameters of which serve as input for the optimization of sales force compensation schemes.

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Copy reference link   DOI: 10.1016/0016-7185(83)90036-2

Abstract: Over the past decade there has been a growing recognition by the business community, central government and local planners of the economic importance of warehousing. This importance can be measured in terms of the value of stock held in warehouses, their very rapid growth relative to other types of commercial property and the employment they create. This article reviews changes in business and planning attitudes to warehousing, accounts for the recent growth of warehouse floorspace in England and examines the spatial distribution of this growth.

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Copy reference link   DOI: 10.1007/BF01720155

Abstract: A new column enumeration algorithm for solving the Set-Partitioning Problem is presented. It is not based on the staircase form of the coefficient matrix. Rather, it uses a preordering of the variables with respect to their cost of covering one row that is a supposition of a new strong lower bound concept. The enumeration process itself is organized similar to a general branch-and-bound concept. The performance of the algorithm is evaluated on the basis of a systematic comparison with different variants of the wellknown algorithms by Pierce and Garfinkel-Nemhauser. The computational experiences indicate that the new algorithm is superior for problems with moderatly dense coefficient matrices.

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Copy reference link   DOI: 10.1057/jors.1980.122

Abstract: Product positioning is concerned with the determination of new product attributes such that certain objectives can be met. Recently, Zufryden proposed a model for optimal product positioning with respect to sales. It relies on the single choice assumption, i.e. consumers choose that product closest to their ideal product perceptions. To improve solvability, Zufryden suggests to solve his model via an approximate procedure, called ZIPMAP. This procedure is compared with an exactly optimising algorithm for the same problem, called PROPOSAS. Comparisons are drawn with respect to the solution values of the objective functions and the CPU-time requirements. The results indicate a superiority of PROPOSAS for a vast number of problem types.

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Copy reference link   DOI: 10.1016/0377-2217(79)90142-5

Abstract: Optimal product positioning in an attribute space has been formulated according to the axiom of choice as a mixed integer nonlinear programming problem. To solve it, Albers and Brockhoff have designed the special purpose algorithm PROPOSAS. It works under simplified assumptions: Euclidean metric, equally weighted dimensions of the attribute space and equal sales per customer. The following article shows that the basic ideas of PROPOSAS are flexible enough to be expanded to cover a weighted Minkowski-metric as well as different revenues from the customers. Furthermore, the calculation of a new upper bound is described which reduces CPU-time considerably.

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Copy reference link   DOI: 10.1007/BF01951547

Abstract: This paper is concerned with the optimal positioning of a new product in an attribute space. A deterministic optimization model that relies on the axiom of choice is compared with the model byShocker/Srinivasan [1974] that incorporates a probabilistic measure of choice. Investigating the assumptions and the construction of both models, it is shown that the probability function byShocker/Srinivasan is based on a controversial assumption and incorporates a parameter that has not been given an economic explanation. Furthermore, both models are applied to complex configurations. It is demonstrated that the optimal positions for the new product resulting from the model byShocker/Srinivasan depend heavily on the parameter just mentioned and may run contrary to plausible consequences of the axiom of choice.

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Copy reference link   DOI: 10.1016/0377-2217(77)90092-3

Abstract: Planning a preferred position of a new product in an attribute space may be considered as a mixed integer non-linear programming problem. A procedure to solve this problem is described which draws on some special features of the problem. Optimality considerations of the procedure as well as computational experiences with it are reported.

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Journal Articles (Professional)

Copy reference link   DOI: 10.1016/j.trd.2017.05.011

Abstract: Greater use of multimodal transportation can substantially improve the environmental performance of freight transportation. Despite strenuous efforts by public policy-makers to alter the freight modal split, most companies still rely heavily on road transportation, and modal shifts to rail and water have remained modest at best. In this paper we argue that this is partly the result of a failure to take a holistic supply chain view of the modal shift process. Synchromodality provides a framework within which shippers can manage their supply chains more flexibly to increase the potential for shifting mode. On the basis of a literature review, we broaden the conventional focus of multimodal transportation to give it a supply chain dimension, and propose the concept of ‘Synchromodality from a Supply Chain Perspective’ (SSCP). Using a case study we show that when the supply chain impacts are taken into account, it is possible to significantly increase the share of intermodal rail transportation within a corridor, without necessarily increasing total logistics cost or reducing the service level. In this way the environmental impact of freight activities can be significantly reduced.

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Copy reference link   DOI: 10.1080/16258312.2017.1369841

Abstract: Consistently bringing sustainable products to market is a preeminent challenge to effectively pursuing the triple bottom line. As most companies lack the know-how and resources to develop and launch sustainable products, they are dependent on trading partners. Resource Integration and Resource Dependence Theory posit that reliance on external trading partners dictates careful governance. Effective collaboration with supply chain partners can theoretically mitigate the threat of resource dependence. The current manuscript, grounded in interview data from the consumer goods industry, however, identifies a persistent collaboration deficit. Rather than working together, many firms try to coerce suppliers into improving sustainability. Coercion sours relationships, impeding joint sustainability efforts and harming progress towards product sustainability. The good news: a few companies are beginning to invest in trust as a collaborative governance mechanism to broaden collaboration and reduce the costs of sustainable product development.

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Abstract: Viele Innovationen basieren auf der Initiative unzufriedener Nutzer. Die Messung und Modellierung dieser sogenannten User Innovation steckt allerdings noch in den Kinderschuhen, wie dieser Beitrag zeigt. Innovationen entstehen in den Forschungs- und Entwicklungsabteilungen großer Unternehmen oder in Start-ups. Etwas vereinfacht dargestellt, bestimmt dieses Verständnis bis heute das ökonomische, gesellschaftliche und politische Nachdenken darüber, wie unsere Volkswirtschaft innovativer, wachstumsstärker und wohlhabender werden kann. Komplementär zu diesem Verständnis etabliert sich zunehmend ein neues Paradigma, das jeden einzelnen Bürger als mögliche Quelle von Innovationen in den Fokus stellt. Das Forschungsfeld der User Innovation hat u.a. drei stilisierte Fakten zu Tage

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Abstract: Ausgeprägtes Misstrauen kann sich positiv auf die Karriere auswirken. Das zeigt eine Studie der Kühne Logistics University in Hamburg. Die Ergebnisse weisen auch darauf hin, dass subklinische Paranoia wesentlich funktionalere Eigenschaften zu haben scheint als bisher angenommen.

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Copy reference link   DOI: 10.1007/s35764-016-0082-y

Abstract: Nach wie vor ist das Thema Datenschutz eine der größten Herausforderungen bei der Nutzung von Cloud-Systemen. Eine Möglichkeit zur Sicherstellung des Datenschutzes besteht in der Dezentralisierung der Datenhaltung und Datenzugriffssteuerung. In diesem Artikel stellen wir eine Systemarchitektur für dezentrale Datenhaltung und Datenschutz auf Basis von Storage Clouds vor. Dabei werden die Datenbestände dezentral in Private-Cloud-Systemen durch Nutzer selbst verwaltet. Eine unabhängige Administrationskomponente regelt die Zugriffs- und Verteilungsrechte auf diese Daten. Ein von uns entwickelter Prototyp zeigt die Umsetzung am Beispiel eines sozialen Netzwerks.

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Abstract: As part of a growing phenomenon, patent holders are increasingly making voluntary, public commitments to limit theirpatent’s enforcement and other exploitation. While most of these commitments are FRAND commitments, in which patent holders promise to license their patents to manufacturers of standardized products on terms that are “fair, reasonable and nondiscriminatory,” a growing number of voluntary patent pledges are made outside the scope of standard-setting organizations or contexts. All of these voluntary public pledges seek to provide some degree of assurance that users of the pledged patents will not face patent litigation suits. However, the exact degree of assurance depends on the legal theory applied to patent pledges. The following article offers an overview of legal considerations for voluntary patent pledges, which go beyond FRAND commitments. These voluntary patent pledges have neither been tested in court nor examined in great detail yet. The goal of this article is to provide an overview of legal arguments based on United States and German law for those who are considering the use and reliance on of voluntary patent pledges.

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Abstract: Companies struggle to define the value proposition 3D printing brings: While the opportunities for improving products are obvious, how to generate value from it is not. Firms need to first examine its potential and risks along three dimensions: product innovation, customisation, and complexity. Then they need to set clear boundaries for permissible customisation, and decide where to situate 3D printing within their organisation.

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