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.

Books

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Abstract: In this study, we develop and analyze models incorporating some of the dynamic aspects of inventory systems. In particular, we focus on two major themes to be analyzed separately: nonstationarity in demand rate and unfixed purchasing prices.In the first part of the study, we consider an inventory system with a nonstationary demand rate. In particular, we consider critical service parts subject to obsolescence. Inventory management of such items is notoriously difficult due to their slow moving character and the high risks involved when they are not available or no more needed.In practice, there is a need for policies tailored for service parts taking these aspects into account and easy to implement. We propose an obsolescence based control policy and investigate its performance and impact on costs. We find that ignoring obsolescence in the control policy increases costs significantly and early adaptation of base stock levels can lead to important savings.In the second part of the study, we consider an inventory system where the supplier offers price discounts at random points in time. We extend the literature by assuming a more general backordering structure. That is, when the system is out of stock, an arriving customer either decides to be backlogged with a certain probability or leaves the system and becomes a lost sale. We derive equations to calculate optimal policy parameters and demonstrate that allowing backorders in face of random deal offerings can result in considerable savings.

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Abstract: From the Foreword by Marshall Fisher, The Wharton School, University of Pennsylvania: As generation of academics and practitioners follows generation, it is worthwhile to compile long views of the research and practice in the past to shed light on research and practice going forward. This collection of peer-reviewed articles is intended to provide such a long view. This book contains a collection of chapters written by leading scholars/practitioners who have continued their efforts in developing and/or implementing innovative OR/MS tools for solving real world problems. In this book, the contr.

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Abstract: The goal matching supply with demand, which is the fundament of supply chain management, has changed the role of operations management from pure cost control to value creation. The recent developments of integrating revenue management with supply chain management activities and the resulting successes have indicated the tremendous potential to improve the supply chain performance in the same way that revenue management has revolutionized the airline industry. This thesis investigates how an integration of revenue management and supply chain management influences decision making and the overall profitability. In particular, simultaneous decision making of selling price, inventory control strategy and capacity acquisition is analyzed.

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Abstract: This cumulative dissertation consists of four essays which focus on critical success factors of cost management and market entry decisions. The first essay is a state-of-the-art article summing up empirical research in the cost management field. The second essay presents empirical results of a field study which especially examines the relevance of behavioral factors in comparison to methodical issues in respect of the implementation of cost management projects. Data were collected from 131 chief controllers and employees of controlling departments of medium-size and large German companies, and the relations were tested using path analysis. The results indicate that besides the quality of the planning process top management commitment and participation are of particular importance for implementing a successful cost management. The third essay is a state-of-the-art article summing up empirical research in the field of timing entry strategies (i.e., existence first mover advantages). The fourth essay proposes ways to overcome several limitations of current empirical research in this field. An empirical application to 12 pharmaceutical markets finds a surprising early mover advantage that contrasts with the conventional wisdom (i.e., first mover advantage) in this industry.

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Copy reference link   DOI: 10.1007/978-0-387-75105-4

Abstract: Due to globalisation and liberalisation of markets more goods are transported world wide than ever before. Inland transportation within the European Union has almost doubled between 1970 and 2000 and is expected to further increase by about 25% until 2010 and by almost 90% until 2030. It appears that this considerable growth is almost entirely realised by road transport. As a result, road pricing systems are increasingly deployed to reduce congestion of the road network and to finance infrastructural development. The deregulation in the European road transport market, in particular, the allowance of cabotage operations, increases competition and motor carriers from emerging countries more and more challenge motor carriers from developed countries by comparably lower wages. Global competition forces manufacturing companies to improve the quality of their products and to reduce their manufacturing costs. As a result, manufacturing companies increasingly apply just-in-time practices in order to cut down inventory costs. Obviously, just-in-time practices necessitate punctual, reliable, and flexible transportation, as with reduced inventory buffers any mismatch between supply and demand can result into significant disturbances of manufacturing processes. To face these challenges motor carriers have to increase the quality of service and reduce costs. Fleet Telematics - Real-Time Management and Planning of Commercial Vehicle Operations shows how motor carriers can increase punctuality, reliability, flexibility, and transparency of transportation services, and, at the same time, reduce empty mileage and low vehicle utilisation. The book presents a telematics-enabled information system alleviating a major obstacle for computer-based real-time decision support: the lack of timely and reliable information. A real-time decision support system is presented which achieves its strength from several specialised actors who collaboratively and concurrently modify problem data and solution, using different problem knowledge and solution techniques: dispatchers, a Messaging & Fleet Monitoring System, and a Dynamic Planning System. Several heuristic planning methods are presented which can be used to dynamically solve transportation problems incorporating a variety of real-life constraints that are not considered by the classical models found in the literature. Among those are the new regulations for drivers’ working hours in the European Union which entered into force in April 2007. With the improved availability of timely and reliable information provided by the Messaging & Fleet Monitoring System, and the real-time decision support provided by the Dynamic Planning System, this book gives an important contribution to increasing the efficiency of commercial vehicle operations.

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Abstract: Zu jeder Aufgabe wird eine detailliert kommentierte Musterlösung vorgestellt. Damit ermöglicht dieses Buch eine aktive Auseinandersetzung mit der Kostenrechnung sowie eine gezielte Prüfungsvorbereitung. Als Ergänzung des Lehrbuches Kostenrechnung in dieser Reihe bietet die vorliegende Sammlung von Aufgaben und Fallstudien ein anspruchsvolles Trainingsprogramm, um die Inhalte der Kostenrechnung einzuüben und zu vertiefen. Geboten werden eine didaktisch ausgewogene Mischung aus Multiple-Choice-Aufgaben, Fragestellungen zur Anwendung der Kostenrechnung sowie komplexen Fallstudien und Self-Assessment-Fragen aus den Bereichen Kostenarten-, Kostenstellen- und Kostenträgerrechnung, Standard- und Grenzplankostenrechnung sowie zu den Auswertungsrechnungen der Kostenrechnung. Das Buch richtet sich an Studierende wirtschaftswissenschaftlicher Studiengänge sowie Aus- und Fortzubildende in der Unternehmungspraxis. Es ist darauf ausgelegt, die Leser auf abzulegende Prüfungen optimal und umfassend vorzubereiten.

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Copy reference link   DOI: 10.1007/978-3-8349-6046-7

Abstract: Der Patentauslauf ist ein einschneidendes Ereignis im Lebenszyklus pharmazeutischer Produkte. Durch den Markteintritt generischer Wettbewerber büßt das Originalpräparat meist innerhalb weniger Monate einen erheblichen Teil seines Umsatzes ein. Für die Höhe der nach dem Patentauslauf erzielbaren Umsätze sind neben dem Verhalten der Generikaanbieter die gewählte Patentauslaufstrategie und ihre Umsetzung in den Bereichen Marketing und Vertrieb bestimmend. Christina Raasch entwickelt eine umfassende Systematik der durch forschende pharmazeutische Anbieter einsetzbaren Patentauslaufstrategien und leitet die Erfolgsfaktoren der Strategieimplementierung ab. Die 2. Auflage wurde durchgesehen und korrigiert.

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