Recent Submissions

  • De paradox van het stretchen van doelen

    Van Steerthem, Angie (Nieuwe Media Groep BVBA, 2017)
  • Self-other agreement on transformational leadership and subordinates’ assessment of supervisor’s performance: Mediating role of leader-member exchange

    Ertürk, Alper; Van den Broeck, Herman; Verbrigghe, Jasmijn (Emerald, 2018)
    Purpose - Given the importance of the extent to which supervisors and their subordinates agree in their assessment of supervisors’ leadership, the purpose of this paper is to investigate the possible relationship between self-other agreement on supervisors’ transformational leadership and subordinates’ perceptions of supervisors’ in-role and extra-role performance, through the mediating role of leader-member exchange. Design/methodology/approach - Self-other agreement was conceptualized as the degree of congruence between supervisors’ self-assessment and subordinates’ assessment of supervisors’ transformational leadership. Data were collected from 36 supervisors and 189 of their subordinates. Cross-level polynomial regressions and surface response analysis were used to analyze the hypothesized relationships. Findings - Statistical analyses revealed that self-other agreement on idealized influence and individual support are positively associated with subordinates’ perception of leader-member exchange, and in turn leader member fully mediates the relationship between self-other agreement and subordinates’ perceptions regarding their supervisors’ performance. Results from polynomial analyses indicate that subordinates’ ratings of leader-member exchange would be highest for underestimator, second for in-agreement/good supervisors, third for in-agreement/poor and lowest for overestimator supervisors both for the idealized influence and individual support. Originality/value - This is one of the pioneer studies investigating the potential relationship between self-other agreement on supervisors’ transformational leadership and the subordinates’ perceptions on their supervisors’ performance through social exchange. Since researchers have paid scant attention to intervening mechanisms, this study aims to extend previous research in the literature by investigating those associations through the mediating effect of leader-member exchange.
  • Two centuries of epochal innovation and stock market bubbles (Accepted)

    Sorescu, Alina; Sorescu, Sorin; Armstrong, Will; Devoldere, Bart (INFORMS, 2018)
    Radical and disruptive innovations are widely discussed in academia and managerial practice. Among those innovations, perhaps the most significant are epochal innovations, defined by economist Simon Kuznets to be “major breakthroughs in the advance of human knowledge, and dominant sources of sustained growth over long periods of time.” By definition, epochal innovation leads to significant economic growth and to a fundamental change of the techno-economic paradigm.
  • Aligning sales and operations management: An agenda for inquiry (Accepted)

    Rangarajan, Deva; Sharma, Arun; Paesbrugghe, Bert; Boute, Robert (Taylor & Francis Group, 2018)
    There is a rapid growth in solution selling in practice and a commensurate increase in research in this area. The focus of this sales strategy is on providing solutions to customer problems that typically entails combining products and services from the provider firm as well as other firms. The fulfilment of these solutions requires operations management support. In spite of the need for closer collaboration between sales and operations management, more research is needed on the interface of these two functions. In order to deepen our understanding of the interface of sales and operations management, we undertook qualitative research and conducted in-depth interviews of senior executives in global firms to determine the need for sales and operations management cooperation. We followed the qualitative research with a review of extant research on the interface of sales and operations management. Finally, we conducted a survey of academic researchers to identify areas and themes of future research in this area. We summarize the implications of our findings for future research.
  • The quality of group tacit knowledge

    Erden, Zeynep; von Krogh, Georg; Nonaka, Ikujiro (Elsevier, 2008)
    Organizational knowledge creation theory explains the process of making available and amplifying knowledge created by individuals as well as crystallizing and connecting it to an organization’s knowledge system. What individuals get to know in their (working) lives benefits their colleagues and, eventually, the wider organization. In this article, we briefly review central elements in organizational knowledge creation theory and show a research gap related to the quality of tacit knowledge in a group. We advance organizational knowledge creation theory by developing the concept of “quality of group tacit knowledge.” Based on this concept, we further develop a comprehensive model explaining different levels of tacit knowledge quality that a group can achieve. Finally, we discuss managerial implications resulting from our model and outline imperatives for future theory building and empirical research.
  • Strategic groups in the biopharmaceutical industry: Implications for performance

    Erden, Zeynep; von Krogh, Georg; Nytorp, Cecilia; Hultberg, Marcus (Elsevier, 2009)
    The biopharmaceutical industry is characterized by intense competition, high uncertainty, and strong dependence on scientific knowledge. We show that in order to succeed in this industry, firms need to be positioned along three strategic dimensions: the level of inter-firm R&D partnering, the level of diversification, and the size of the firm. Prior research has revealed that a firm's membership in so-called ‘strategic groups’ impacts strongly on its performance. This study analyzes strategic groups in the biopharmaceutical industry along the strategic dimensions listed. The performance of the groups differs significantly. The best performing groups are the ones that consist of large firms with a high level of in-house diversification across therapeutic areas and the medium-sized firms that pursue partnership with other companies.
  • Clusters in the biopharmaceutical industry: Toward a new method of analysis

    Erden, Zeynep; von Krogh, Georg (Elsevier, 2011)
    Clusters are groups of co-located and interconnected firms and institutions linked by commonalities in their strategies and complementarities in their activities and resources. There are several reasons for the geographical clustering of firms in the biopharmaceutical industry. This review unpacks some advantages and disadvantages of cluster participation, and proposes a new method to enable managers and researchers to identify clusters in the biopharmaceutical industry.
  • Knowledge sharing in an online community of volunteers: The role of community munificence

    Erden, Zeynep; von Krogh, Georg; Kim, Seonwoo (Wiley, 2012)
    This study examines how perceived benefits, and context in online communities, shape members' intentions to share their knowledge. We build a model of knowledge‐sharing intention and provide empirical evidence using survey data collected from a community in which members voluntarily exchange their experiences, ideas, and questions on photographic equipment via online platforms. We find the perceived benefits and favorable conditions provided by a community (community munificence) – which consists of collective knowledge, experienced interdependence, opportunity structures, and psychological safety – influence individuals' motivation to contribute knowledge. We discuss managerial implications and outline suggestions for future theory building and empirical research.
  • Rethinking Leadership in Drug Discovery

    Schneider, Andreas; Erden, Zeynep; Widmer, Hans; Koch, Guido; Billy, Christine; von Krogh, Georg (Elsevier, 2012)
    Great efforts have been dedicated to rebuilding the engine of pharmaceutical R&D. However, one potential area of improvement has received limited attention in the literature and in practice: namely, leadership. In this article, we enrich the traditional views of leadership, which consider leadership a responsibility of a few centrally placed authorities, with the concept of distributed leadership. Distributed leadership reflects a group-based capability driven by everyday activities and the key scientific questions at hand. We identify three leadership challenges faced by R&D teams that could be addressed by implementing distributed leadership. Furthermore, we provide some suggestions as to how to foster distributed leadership in drug discovery projects.
  • The multifaceted nature of social practices: A review of the perspectives on practice-based theory building about organizations

    Erden, Zeynep (Elsevier, 2014)
    A vibrant body of literature on social practices has developed rapidly in recent years. However, a systematic analysis of the underlying perspectives that shape the way practice-based scholars contribute to theory building about organizational phenomena has escaped scholarly attention. It is of pivotal importance to examine the multifaceted nature of social practices and understand the process by which new practice-based knowledge is developed. Our study addresses this gap by disentangling how researchers have adopted the knowledge, materiality, ethics, and politics perspectives that – as past influential work has informed us – are particularly relevant to practice-based theory building. In so doing, we categorize the body of literature into themes that correspond to the organizational phenomena examined by social practice scholars: practice boundaries and coordination of work, technology at work, strategy formation, local particulars structuring everyday work, and transformation of work practices. By uncovering how scholars adopt the four perspectives within each theme, our review shows that scholars (i) predominantly adopt the knowledge perspective, (ii) neglect the politics perspective when looking ‘inside’ a social practice, (iii) strikingly de-emphasize the ethics perspective, and (iv) isolate each of the four perspectives used in theory building. We then examine in detail the implications of our work for future research on social practices and conclude with a number of theoretical and methodological suggestions.
  • The publishing and patenting strategies of successful university spinoffs in the biopharmaceutical industry

    Erden, Zeynep (Elsevier, 2017)
    Firms in the biopharmaceutical industry send signals to investors about the value of their knowledge by disclosing it in the form of patents and publications. In this way, they can gain reputation even before having products on the market. This paper compares the patenting and publishing activities of university spinoffs with other biopharmaceutical firms. The findings suggest that successful university spinoffs and successful other firms (not university spinoffs) tend to follow different knowledge disclosure strategies. Whereas successful university spinoffs tend to emphasize the scientific value of their knowledge and gain reputation through their high-quality publications, other successful firms tend to emphasize the commercial value of their knowledge and gain reputation through high-quality patents.
  • Future-proof tariff design: Recovering sunk grid costs in a world where consumers are pushing back

    Schittekatte, Tim; Momber, Ilan; Meeus, Leonardo (Elsevier, 2018)
    Traditional analysis of distribution network tariff design assumes a lack of alternatives to grid connection for the fulfilment of consumers' electricity needs. This is radically changing with breakthroughs in two technologies: (1) Photovoltaics (PV) enable domestic and commercial consumers to self-produce energy; (2) Batteries allow consumers and self-producers to gain control over their grid energy and capacity parameters. Contributing to the state of the art, the grid cost recovery problem for the Distribution System Operator (DSO) is modelled as a non-cooperative game between consumers. In this game, the availability and costs of the two named technologies strategically interact with tariff structures. Four states of the world for user's access to technologies are distinguished and three tariff structures are evaluated. The assessed distribution network tariff structures are: energy volumetric charges with net-metering, energy volumetric charges for both injection and withdrawal, and capacity-based charges. Results show that in a state of the world with new technology choices for grid users both efficiency and equity issues can arise when distribution network charges are ill-designed.
  • Dual judgment processing in feedback: Opening Pandora's box (Accepted)

    De Stobbeleir, Kathleen; Desmet, Lien (Emerald, 2018)
  • An empirical validation of the performance of project control tolerance limits

    Martens, Annelies; Vanhoucke, Mario (Elsevier, 2018)
    The goal of project control is monitoring the project progress during project execution to detect potential problems and taking corrective actions when necessary. Tolerance limits are a tool to assess whether the project progress is acceptable or not, and generate warnings signals that act as triggers for corrective action to the project manager. In this paper, three distinct types of tolerance limits that have been proposed in literature are validated on a large and diverse set of real-life projects mainly situated in the construction sector. Moreover, a novel approach to construct tolerance limits that integrate the project risk information into the monitoring process is introduced. The results of the empirical experiment have shown that integrating project-specific information into the construction of the tolerance limits results in a higher efficiency of the monitoring process. More specifically, while including cost information increases the efficiency only marginally, incorporating the available resource information substantially improves the efficiency of the monitoring process. Furthermore, when projects are not restricted by scarce resources, the efficiency can be enhanced by integrating the available project risk information.
  • A perturbation matheuristic for the integrated personnel shift and task rescheduling problem (Published Online)

    Maenhout, Broos; Vanhoucke, Mario (Elsevier, 2018)
    In this paper, we propose a heuristic optimisation procedure for the integrated personnel shift and task re-scheduling problem. We assume that schedule disruptions arise as the baseline personnel roster is subject to three sources of operational variability, i.e. uncertainty of capacity, uncertainty of demand and uncertainty of arrival. In order to restore the feasibility of the personnel roster and to minimise the number of deviations compared to the original roster, we propose a heuristic re-scheduling procedure that thrives on a perturbation mechanism to diversify the search and a variable neighbourhood search to intensify the search in the region of a solution point. In the computational experiments, we assess the contribution of the different algorithmic building blocks and benchmark our algorithm with other optimisation procedures.
  • An exact composite lower bound strategy for the resource-constrained project scheduling problem

    Coelho, José; Vanhoucke, Mario (Pergamon Press, 2018)
    This paper reports on results for the well-known resource-constrained project scheduling problem. A branch-and-bound procedure is developed that takes into account all best performing components from literature, varying branching schemes and search strategies, using the best performing dominance rules and assembling these components into a unified search algorithm. A composite lower bound strategy that statically and dynamically selects the best performing bounds from literature is used to find optimal solutions within reasonable times. An extensive computational experiment is set up to determine the best combination of the various components used in the procedure, in order to benchmark the current existing knowledge on four different datasets from the literature. By varying the network topology, resource scarceness and the size of the projects, the computational experiments are carried out on a diverse set of projects. The procedure was able to find some new lower bounds and optimal solutions for the PSPLIB instances. Moreover, new best known results are reported for other, more diverse datasets that can be used in future research studies. The experiments revealed that even project instances with 30 activities cannot be solved to optimality when the topological structure is varied.
  • A tool to test and validate algorithms for the resource-constrained project scheduling problem

    Vanhoucke, Mario; Coelho, José (Pergamon Press, 2018)
    In a paper written by by Vanhoucke et al. (2016), an overview of artificial and empirical project databases has been given for integrated project management and control. These databases are collections of the most well-known and widespread data instances available in literature for the construction of a baseline schedule, the analysis of schedule risk or the use for project control. The current paper serves as a follow-up study to further elaborate on the use of these data instances, and to give researchers an incentive to use these datasets for their research on the development and validation of new algorithms for project scheduling. Therefore, unlike the general focus of the previous paper on baseline scheduling, schedule risk analysis and project control, the focus on the current paper is restricted to resource-constrained project scheduling. The intention of this follow-up overview is fourfold. First and foremost, a procedure is proposed to facilitate the reporting of best known solutions for the well-known single- and multi-mode resource-constrained project scheduling problem to minimize the project makespan. Secondly, the paper reports our best known solutions we obtained so far, and reflects on the network and resource parameters that increase the project complexity. In doing so, areas to focus on for future research are detected, and an attempt to define hard problem instances is given. Thirdly, a new dataset is presented for the resource-constrained project scheduling problem that is much more diverse in both the network topology and resource scarceness and will enable the future researcher to develop algorithms to solve a wider range of project problems. Finally, the paper also adds some links to tutorials and other relevant information to stimulate researchers to download the data and update best known solutions once available.
  • Guest editorial

    Will, Georg Mathias; Wetzel, Ralf (Emerald Group Publishing Ltd., 2018)
    Next concepts for successful organizational change. According to a Capgemini Consulting (2010) study, 25 per cent of all the change management initiatives fail, productivity decreases about 25 per cent in times of change and employee turnover increases by approximately 10 per cent. Other studies show similar findings (Shin et al., 2012; Zhang and Rajagopalan, 2010). These numbers indicate that, typically, change management not only has a major impact on company’s performance – but in many cases, it makes the situation even worse. This is an unacceptable outcome because, obviously, companies apply change management to achieve a turnaround in performance and productivity

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