• Analysis of the integration of the physician rostering problem and the surgery scheduling problem

      Van Huele, Christophe; Vanhoucke, Mario (Journal of Medical Systems, 2014)
      In this paper, we present the Integrated Physician and Surgery Scheduling Problem (IPSSP) as a new approach for solving operating room scheduling problems where staff rosters for the physicians are integrated in the optimization. A mixed integer linear programming formulation is created based on the most frequently observed objective and restrictions of the surgery scheduling and the physician rostering problem in the literature. We analyze schedules by relaxing both surgery and physician related constraints. We then measure the implications of setting these physician preferences on the surgery schedule. Our experiments show two main interesting insights for physician roster schedulers as well as operating theatre scheduling managers.
    • An analytical model for budget allocation in risk prevention and risk protection

      Guan, Xin; Servranckx, Tom; Vanhoucke, Mario (Computers & Industrial Engineering, 2021)
      Risk is inherent and inevitable during project execution. Its occurrence often has an adverse impact on the project or even leads to project failure. In order to ensure the successful project completion, risk prevention used for reducing the risk probability and risk protection used for reducing the risk loss should be considered. Given the different effects and costs of these two strategies and the limited project budget, project managers should be able to reasonably divide the budget among these two strategies. This study proposes a budget allocation method consisting of three modules for mitigating the project risks. First, we model the relation between the effect and cost of each strategy as linear and non-linear relations. Second, two mathematical models are built and the corresponding analytical solutions are obtained. Afterwards, a three-step procedure for budget allocation is proposed. To validate the analytical results and investigate the impacts of the characteristics of the project risk and response on the optimal budget allocation, numerical experiments are conducted and managerial insights are drawn. Finally, the budget allocation model is extended with multiple risks, secondary risk and risk transfer, and validated using an empirical analysis.
    • Analyzing domestic violence with topographic maps: a comparative study

      Poelmans, Jonas; Elzinga, Paul; Viaene, Stijn; Dedene, Guido (+); Van Hulle, Marc (Lecture notes in Computer Science, 2009)
    • Analyzing employee agreement on maturity assessment tools

      Willems, Jurgen; Van den Bergh, Joachim; Deschoolmeester, Dirk (Knowledge and Process Management, 2012)
      This study examines the relationships among angel investor-entrepreneur relationship conflicts, task conflicts, and goal conflicts on the one hand and their intentions to exit on the other. I evaluate the hypotheses with survey data from 65 angel investors and 72 entrepreneurs belonging to 54 ventures located in either California or Belgium. Regression analyses indicate that entrepreneurial intentions to exit are higher for entrepreneurs who face more task and goal conflicts. Angel investors' intentions to exit are only increased when faced with more goal conflicts. Together, these results indicate the importance of taking into account investor-entrepreneur relations when studying their respective exit processes.
    • Analyzing the nursing organizational structure and process from a scheduling perspective

      Maenhout, Broos; Vanhoucke, Mario (Health Care Management Science, 2013)
      The efficient and effective management of nursing personnel is of critical importance in a hospital’s environment comprising approximately 25 % of the hospital’s operational costs. The nurse organizational structure and the organizational processes highly affect the nurses’ working conditions and the provided quality of care. In this paper, we investigate the impact of different nurse organization structures and different organizational processes for a real-life situation in a Belgian university hospital. In order to make accurate nurse staffing decisions, the employed solution methodology incorporates shift scheduling characteristics in order to overcome the deficiencies of the many phase-specific methodologies that are proposed in the academic literature.
    • Anders concurreren in een euro-omgeving?

      Van Overstraeten, Peter; Moenaert, Rudy; Robben, Hans (Tijdschrift Bedrijfskunde, 2000)
    • Angel investors' and entrepreneurs' intentions to exit their ventures: a conflict perspective

      Collewaert, Veroniek (Entrepreneurship: Theory and Practice, 2012)
    • Antecedents and consequences of collective psychological ownership: The validation of a conceptual model

      Giordano, Ana Paula; Patient, David; Passos, Ana Margarida; Sguera, Francesco (Journal of Organizational Behavior, 2020)
      We investigate team member feelings of collective psychological ownership (CPO) over teamwork products, the psychological paths that lead to it, and its impact on team workers' evaluations of team effectiveness, turnover intentions, and intentions to champion teamwork products. We focus on the teamwork product as an important target of ownership feelings, building on theories of self‐extension, psychological ownership, and team emergent states. In Study 1, we validate measures for three ownership activating experiences (OAE) that have been proposed as paths to CPO (control over, intimate knowledge regarding, and investment in the teamwork product) using two samples of individual team workers (n = 210 and n = 140). In Study 2 (n = 183) and Study 3 (n = 200), we use surveys and a multiwave design to show that team workers' feelings of CPO mediate the relationship between investment in and intimate knowledge regarding the product and team effectiveness evaluations, team turnover intentions, and intentions to champion the work product. In Study 4 (n = 48 teams), CPO was predicted by the ownership activating experiences, at the team level. This research additionally highlights the benefits to organizations of creating conditions for the emergence of employee feelings of shared ownership over teamwork products.
    • Antecedents and consequences of customer-company identification: expanding the role of relationship marketing

      Ahearne, Michael; Bhattacharya, C.B.; Gruen, Thomas (Journal of Applied Psychology, 2005)
    • Antecedents and consequences of performance management enactment by front-line managers. Evidence from Belgium.

      Dewettinck, Koen; Vroonen, Wim (International Journal of Human Resource Management, 2017)
      Although researchers have extensively stressed the critical role of line managers in the effective implementation of HR practices, little is known about what exactly causes managers to enact these practices. In this paper, we draw from signaling theory, theory of planned behavior and social exchange theory to investigate both the antecedents and the outcomes of front-line management's enactment of performance management (PM) activities. Results from two Belgian samples of 731 front-line managers and 425 employees show that line management's beliefs regarding the usefulness of PM activities mediate the relationship between HR support and line management's implicit person theory, on the one hand, and PM enactment, on the other. This relationship is moderated by the manager' span of control. Furthermore, line management enactment shows to be positively related to employee engagement and job satisfaction.
    • Antecedents of growth through mergers and acquisitions. Empirical results from Belgium

      Huyghebaert, Nancy; Luypaert, Mathieu (Journal of Business Research, 2010)
    • Antecedents of Time to Completion in Mergers and Acquisitions

      Luypaert, Mathieu; De Maeseneire, Wouter (Applied Economics Letters, 2015)
      Literature on mergers and acquisitions (M&As) performance and wealth effects is abundant. Yet, we know very little about the pre-completion stage, in particular about aspects such as the likelihood of deal closing and time to completion. Understanding the drivers of completion time is however important as prolonged deal duration is costly and postpones realizing synergy gains. In this article, we study the antecedents of deal duration for a sample of 1150 M&As between listed US companies during 1994-2011. Not surprisingly, deal complexity critically affects time to completion. Stock offers, deal hostility, mergers and larger deals are characterized by a lengthier acquisition duration. Strong and clear shareholder support accelerates deal completion, as does the likelihood of overpayment. Finally, experienced bidders succeed in more rapidly completing transactions, implying learning effects.
    • Antecendents of Growth through Mergers and Acquisitions. Empirical Results from Belgium

      Huyghebaert, Nancy; Luypaert, Mathieu (Journal of Business Research, 2010)
    • Applying a hybrid job shop procedure to a Belgian manufacturing company producing industrial wheels and castors in rubber

      Sels, Veronique; Steen, Frederic; Vanhoucke, Mario (Computers and Industrial Engineering, 2011)
    • Applying styles research to educational practice

      Evans, Carol; Cools, Eva (Learning and Individual Differences, 2011)
    • Appraisal of the European Commission's Energy Roadmap 2050

      Meeus, Leonardo (European Energy Journal, 2012)
      What is the European energy strategy for 2050? How different is it from the 2020 energy strategy? What are the technology options? What are the policy options? The European Commission provided a first answer to these questions in its Energy Roadmap 2050. This article gives an appraisal of that answer based on the recommendations we made during the preparation of the roadmap.
    • Are 'old' strategy concepts still working?

      Hawawini, G.; Subramanian, Venkat; Verdin, Paul (European Business Forum, 2001)
    • Are acquisitions worthwile? An empirical study of the post-acquisition performance of privately held Belgian companies

      Ooghe, Hubert; Van Laere, Elisabeth; De Langhe, Tine (Small Business Economics, 2006)
    • Are failure prediction models widely usable? An empirical study using a Belgian dataset

      Ooghe, Hubert; Balcaen, Sofie (Multinational Finance Journal, 2007)