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)
Reichhart, Andreas, Jose Framinan and Matthias Holweg (2008): On the link between inventory and responsiveness in multi-product supply chains, International Journal of Systems Science, 39 (7): 677-688.
Reichhart, Andreas and Matthias Holweg (2008): Co-located supplier clusters: Forms, functions and theoretical perspectives, International Journal of Operations & Production Management, 28 (1): 53-78.
Transchel, Sandra and Stefan Minner (2008): Coordinated Lot-sizing and Dynamic Prizing under a Supplier All-units Quantity Discount, Business Research, 1 (1): 125-141.
Abstract: We consider an economic order quantity model where the supplier offers an all-units quantity discount and a price sensitive customer demand. We compare a decentralized decision framework where selling price and replenishment policy are determined independently to simultaneous decision making. Constant and dynamic pricing are distinguished. We derive structural properties and developalgorithms that determine the optimal pricing and replenishment policy and show how quantity discounts not only influence the purchasing strategy but also the pricing policy. A sensitivity analysis indicates the impact of the fixed-holding cost ratio, the discount policy, and the customers' price sensitivity on the optimal decisions.
Van Quaquebeke, Niels and Felix C. Brodbeck (2008): Entwicklung und erste Validierung zweier Instrumente zur Erfassung von Führungskräfte-Kategorisierung im deutschsprachigen Raum, Zeitschrift für Arbeits-und Organisationspsychologie, 52 (2): 70-80.
Abstract: Der kognitionspsychologisch geprägte Ansatz der Führungskraft-Kategorisierung geht davon aus, dass Mitarbeiter umso positiver auf ihre Führungskräfte reagieren, je stärker diese ihren impliziten Vorstellungen über Führung (Führungsprototypen) entsprechen – also eine hohe Passung mit diesen aufweisen. Da Führungsprototypen stark kulturgeprägt sind, erscheinen die vorhandenen, vorwiegend aus dem englischsprachigen Raum stammenden Instrumente für Forschung im deutschsprachigen Raum jedoch wenig geeignet. Im vorliegenden Beitrag werden deshalb zwei neu entwickelte Maße vorgestellt. Zum einen wurde der deutsche GLOBE-Datensatz in Hinblick auf zentrale Führungsattribute in Deutschland reanalysiert, um eine Erhebung der Passung mit einem sozial geteilten Führungsprototyp möglich zu machen. Zum anderen wurde ein piktorales Maß zur Erhebung der Passung mit einem idiosynkratischen Führungsprototyp entwickelt. Während der Vorteil des ersten Instruments die inhaltliche Auswertbarkeit des Passungsprofils ist, liegt der Vorteil des piktoralen Instrumentes in seiner hohen Effizienz und Kulturunabhängigkeit. Auch wenn eine erste Untersuchung in einem Unternehmen (N = 104) die konvergente und Kriteriumsvalidität beider Instrumente bestätigt, so schränkt das Studiendesign (Querschnitt mit Common Source Data) eine Einschätzung der psychometrischen Qualität beider Instrumente ein. Notwendig erscheinende Folgestudien werden daher abschließend beschrieben.
Oliver, Nick, Matthias Holweg and Mike Carver (2008): A systems perspective on the death of a car company, International Journal of Operations & Production Management, 28 (6): 562-583.
Skiera, Bernd and Sönke Albers (2008): Prioritizing sales force decision areas for productivity improvements using a core sales response function, Journal of Personal Selling and Sales Management, 28 (2): 145-154.
Mantrala, Murali K., Sönke Albers, Srinath Gopalakrishna and Kissan Joseph (2008): Introduction: Special issue on enhancing sales force productivity, Journal of Personal Selling and Sales Management, 28 (2): 109-113.
Georgiadis, Patroklos and Maria Besiou (2008): Sustainability in electrical and electronic equipment closed-loop supply chains: a system dynamics approach, Journal of Cleaner Production, 16 (15): 1665-1678.
Hühn, Matthias P. (2008): Unenlightened Economism: The Antecedents of Bad Corporate Governance and Ethical Decline, Journal of Business Ethics, 81 (4): 823-835.
Becker, Jan U., Michel Clement and Ute Schädel (2008): Shared WiFi-communities - user generated infrastructure am Beispiel von FON, Wirtschaftsinformatik, 50 (6): 482-488.
Pinçe, Çerağ, Ülkü Gürler and Emre Berk (2008): A continuous review replenishment–disposal policy for an inventory system with autonomous supply and fixed disposal costs, European Journal of Operational Research, 190 (2): 421-442.
Abstract: In this study, we analyze an inventory system facing stochastic external demands and an autonomous supply (independent return flow) in the presence of fixed disposal costs and positive lead times under a continuous review replenishment–disposal policy. We derive the analytical expressions of the operating characteristics of the system; and, construct the objective function to minimize the total expected costs of ordering, holding, purchasing and disposal per unit time subject to a fill rate constraint. An extensive numerical analysis is conducted to study the sensitivity of the policy parameters and the benefit of employing a policy which allows for disposal of excess stock in this setting. We model the net demand process as the superposition of normally distributed external demand and inflows, which is expressed as a Brownian motion process. Our findings indicate that the disposal option results in considerable savings even (i) in the presence of non-zero fixed disposal costs, (ii) large actual demand rates with high return ratios (resulting in small net demands) and (iii) for moderate return ratios with high demand variability.
Goel, Asvin and Volker Gruhn (2008): A General Vehicle Routing Problem, European Journal of Operational Research, 191 (3): 650-660.
Abstract: In this paper, we study a rich vehicle routing problem incorporating various complexities found in real-life applications. The General Vehicle Routing Problem (GVRP) is a combined load acceptance and generalised vehicle routing problem. Among the real-life requirements are time window restrictions, a heterogeneous vehicle fleet with different travel times, travel costs and capacity, multi-dimensional capacity constraints, order/vehicle compatibility constraints, orders with multiple pickup, delivery and service locations, different start and end locations for vehicles, and route restrictions for vehicles. The GVRP is highly constrained and the search space is likely to contain many solutions such that it is impossible to go from one solution to another using a single neighbourhood structure. Therefore, we propose iterative improvement approaches based on the idea of changing the neighbourhood structure during the search.
Sodhi, ManMohan S., Byung-Gak Son and Christopher S. Tang (2008): ASP, The Art and Science of Practice: What Employers Demand from Applicants for MBA-Level Supply Chain Jobs and the Coverage of Supply Chain Topics in MBA Courses, Interfaces, 38 (6): 469-484.
Abstract: We analyzed the text of 704 online advertisements of supply chain management jobs for MBA graduates. The content analysis of these job advertisements provided us with a list of supply chain topics, such as inventory management and supply management, and general skills, such as communication and leadership; it also showed the proportion of advertisements requesting these skills. We measured the relative coverage of the same supply chain topics in MBA-level supply chain electives and operations management core courses in 21 of the top 50 business schools in the United States by analyzing the course descriptions and the cases used in these courses. This enabled us to compare the relative importance of supply chain topics to employers on the “demand” side with the relative importance of supply chain electives in MBA curricula on the “supply” side in these schools. Our analysis indicated that the supply usually matches demand; however, there may be an undersupply of practice- or process-oriented topics, such as forecasting, procurement, supplier and vendor management, and contracts and negotiation. In addition, there may be an oversupply of conceptual and strategy-oriented topics, such as product design, supply chain design, and emerging information technology and management information.
Wagner, Stephan M. and J. Rod Franklin (2008): Why LSPs don’t leverage innovations, Supply Chain Quarterly, 2 (4): 66-71.
Bhalla, Ajay, ManMohan S. Sodhi and Byung-Gak Son (2008): Is more IT offshoring better?: An exploratory study of western companies offshoring to South East Asia, Journal of Operations Management, 26 (2): 322-335.
Abstract: We explore the link between a company's performance and the extent of its offshoring of IT-enabled services, focusing on large western companies. Our performance measures comprise sales, profit as percentage of sales, profit/employee and sales/employee over 1999–2004. To measure offshoring, we consider the extent to which these companies have offshored: (1) software development and other IT-related development and maintenance, (2) business processes such as payroll or claims processing, and (3) call centers. We performed cluster analysis using the three corresponding offshoring variables to obtain broad patterns of offshoring. Then we compared the average performance of the companies in different clusters using ANOVA; did a regression analysis of the performance measures against the three offshoring variables; and performed non-parametric correlations within industry sectors. None of these tests indicated any clear link between company performance and the extent of offshoring thus suggesting that further study is needed to understand when to offshore and how best to do it.
Sodhi, ManMohan S. and Christopher S. Tang (2008): The OR/MS Ecosystem: Strengths, Weaknesses, Opportunities, and Threats, Operations Research, 56 (2): 267-277.
Abstract: We believe that research, teaching, and practice are becoming increasingly disengaged from one another in the OR/MS ecosystem. This ecosystem comprises researchers, educators, and practitioners in its core along with end users, universities, and funding agencies. Continuing disengagement will result in OR/MS occupying only niche areas and disappearing as a distinct field even though its tools would live on. To understand the reasons for this disengagement better and to engender discussion among academics and practitioners on how to counter it, we present the ecosystem's strengths, weaknesses, opportunities, and threats. Incorporated in this paper are insights from a cluster of sessions at the 2006 INFORMS meeting in Pittsburgh (“Where Do We Want to Go in OR/MS?”) and from the literature.
Sodhi, ManMohan S. and Byung-Gak Son (2008): ASP, The Art and Science of Practice: Skills Employers Want from Operations Research Graduates, Interfaces, 38 (2): 140-146.
Abstract: We analyzed the text of more than 1,000 ads for operations research (OR) jobs. Our objective was to help industry employers benchmark the skills they are seeking in OR graduates with those that other employers are seeking. Educators can also compare their offerings against the skills industry employers seek. We found that employers of OR graduates consistently require modeling, statistics, programming, and general analytical skills in an operations management context as their primary requirements regardless of sector, function within company, and even degree type. These employers also require communication, leadership, project management, spreadsheet and database, and team skills in that order.
Sodhi, ManMohan S. (2008): Is the east following the West or its own destiny for industrial development? A research agenda based on supply-chain integration, Operations and Supply Chain Management Journal, 1 (1): 19-31.
Acciaro, Michele (2008): The Role of Ports in the Development of Mediterranean Islands, International Journal of Transport Economics, 35 (3): 295-324.
Raasch, Christina, Cornelius Herstatt and Phillip Lock (2008): The dynamics of user innovation: Drivers and impediments of innovation activities, International Journal of Innovation Management, 12 (3): 377-398.
Abstract: Users have proven to be a principal driving force of many innovations in different industries. Therefore, more and more firms try to identify avenues to systematically involve users into their new product development. Despite the growing interest in user-driven or user-centred innovation, both in academia and industry, the drivers and impediments affecting the evolvement of user innovation activities over time have only recently become a focus of analysis. This study aims to examine user innovation over time and contribute to the extension of the existing model of user-driven innovation to a more dynamic setting. For this purpose, we study the evolution of user innovation in a field of sports equipment, a high-performance sailboat called Moth. We analyse innovation activities over several decades based on secondary data, interviews and survey results. We find that the level of user activity does not follow a unidirectional trend, but rather develops depending on a number of contextual factors. This suggests that, given a stimulating setting, user innovation can be sustained over long periods of time.
McKinnon, Alan C. (2007): Increasing fuel prices and market distortion in a domestic road haulage market: the case of the UK, European Transport/Trasporti Europei, April (35): 5-26.
Momotko, Mariusz, Michał Gajewski, André Ludwig, Ryszard Kowalczyk, Marek Kowalkiewicz and Jian Ying Zhang (2007): Towards adaptive management of QoS-aware service compositions, Multiagent Grid System, 3 (3): 299-312.
Abstract: Service compositions enable users to realize their complex needs as a single request. Despite intensive research, especially in the area of business processes, web services and grids, an open and valid question is still how to manage service compositions in order to satisfy both functional and non-functional requirements as well as adapt to dynamic changes. This article describes an approach towards adaptive management of QoS aware service compositions. This approach integrates well known concepts and techniques and proposes various execution strategies based on dynamic selection and negotiation of services included in a service composition, contracting based on service level agreements, service enactment with flexible support for exception handling, monitoring of service level objectives, and profiling of execution data. An important element of the approach is an open architecture for adaptive service composition management. Its first prototypical implementation has been developed within an EU-funded Adaptive Service Grid project.