• Research methods in organizational change: A state-of-the-art review

      Buelens, Marc; Van De Woestyne, Mieke; Mestdagh, Steven; Bouckenooghe, Dave (2007)
    • Research on Employee Performance Management in MNC's: A Call for Expanding the Psychological Perspective. A research note

      Dewettinck, Koen; Remue, Jonathan (European Journal of International Management, 2011)
    • Reservation and allocation policies for influenza vaccines

      Samii, Behzad; Pibernik, Richard; Yadav, Prashant; Vereecke, Ann (European Journal of Operational Research, 2012)
      This research investigates the impact of alternative allocation mechanisms that can be employed in the context of vaccine inventory rationing. Available vaccine inventory can be allocated to arrivals from high priority (target groups such as healthcare professionals) and low priority (non-target groups) demand classes using Partitioned Allocation (PA), Standard Nesting (SN), and Theft Nesting (TN). In any one of the mechanisms, a part of the available inventory is reserved for the exclusive use of the high priority demand class. They differ, however, in how the unreserved portion of the inventory is utilized: Under PA, demand from the high (low) priority class consumes only the reserved (unreserved) quantity. Under SN, demand from the high priority class first consumes the reserved quantity; once and if this quantity is exhausted, high priority demand competes with low priority demand for the remaining inventory. Under TN the sequence of allocation is reversed: both demand classes first compete for the unreserved inventory. Once this portion of inventory is exhausted, high priority demand is fulfilled from the reserved inventory and low priority demand is rejected. We develop service level (probability of fulfilling the entire demand) and fill rate (fraction of demand fulfilled) expressions for all three allocation mechanisms. Based on these expressions, numerical analyses are conducted to illustrate which allocation mechanism a health planner should choose depending on the availability of vaccines, and how the health planner should set the reserved quantity for the high priority class. We observe that (1) there exist certain conditions under which one of the allocation mechanisms outperforms the others and (2) this effect is determined by the decision maker’s choice of the performance measure.
    • Resilience in the face of uncertainty: Early lessons from the COVID-19 pandemic

      Bryce, Cormac; Ring, Patrick; Ashby, Simon; Wardman, Jamie (Journal of Risk Research, 2020)
      The transboundary dynamics of COVID-19 present an unprecedented test of organisational resilience. In the UK, the National Health Service (NHS), a talisman of collective fortitude against disease and illness, has struggled to cope with inadequate provision of virus tests, ventilators, and personal protective equipment needed to fight the pandemic. In this paper, we reflect on the historic dynamics and strategic priorities that have undermined the NHS’s attempts to navigate these troubled times. We invoke the organisational resilience literature to address ‘the good, the bad and the ugly’ of preparedness in readiness and response to the current pandemic. In particular, we draw on Meyer’s (1982) seminal work on ‘adaptation to jolts’, excavating current preparedness failings. We argue an overreliance on perceived efficiency benefits of ‘lean production’ and ‘just in time’ continuity planning superseded strategic redundancy and slack in the system. This strategic focus was not simply the result of a failure in foresight, but rather a failure to act adaptively on knowledge of the known threats and weaknesses spotlighted by earlier projections of an inevitable pandemic threat. In conclusion, we consider how the UK Government and NHS must now undergo a phase of ‘readjustment’ in Meyer’s terms, in light of these failings. We suggest that independent responsibility for national future preparedness should be handed to the NHS free from political interference. This would operate under the umbrella of a national emergency preparedness, resilience and response public body, enshrined in law, and similar in governance to the current Bank of England. This will help ensure that foresight is accompanied by durability and fortitude in safeguarding the UK against future pandemic threats.
    • Resistance to brand switching when a radically new brand is introduced: a social identity theory perspective

      Lam, Son; Ahearne, Michael; Hu, Ye; Schillewaert, Niels (Journal of Marketing, 2010)
    • Resolving environmental and social conflicts - responsible innovation in small producers clusters in northern Vietnam

      Voeten, Jaap; de Groot, Gerard; Roome (+), Nigel; de Haan, Job (2012)
      The evaluation of the relationship with the customer and related benefits has become a key point for a company’s competitive advantage. The development of customer churn models has increased over the years. However, these models tend to be complex and used on demand, being developed every time the customer analysis is requested. The main contribution of this article is to demonstrate how a backtesting framework can be used for churn evaluation, enabling the validation and monitoring process for the generated churn models.
    • Resource related diversification and its measures - Review of Empirical Results

      Weiss, Martin (Problems and Perspectives in Management, 2013)
    • Resource-constrained multi-project scheduling: Benchmark datasets and decoupled scheduling

      Van Eynde, Rob; Vanhoucke, Mario (Journal of Scheduling, 2020)
      In this paper, we propose a new dataset for the resource-constrained multi-project scheduling problem and evaluate the performance of multi-project extensions of the single-project schedule generation schemes. This manuscript contributes to the existing research in three ways. First, we provide an overview of existing benchmark datasets and classify the multi-project literature based on the type of datasets that are used in these studies. Furthermore, we evaluate the existing summary measures that are used to classify instances and provide adaptations to the data generation procedure of Browning and Yassine (J Scheduling 13(2):143-161, 2010a). With this adapted generator we propose a new dataset that is complimentary to the existing ones. Second, we propose decoupled versions of the single-project scheduling schemes, building on insights from the existing literature. A computational experiment shows that the decoupled variants outperform the existing priority rule heuristics and that the best priority rules differ for the two objective functions under study. Furthermore, we analyse the effect of the different parameters on the performance of the heuristics. Third, we implement a genetic algorithm that incorporates specific multi-project operators and test it on all datasets. The experiment shows that the new datasets are challenging and provide opportunities for future research.
    • Resource-constrained project scheduling with activity splitting and setup times

      Vanhoucke, Mario; Coelho, José (Computers and Operations Research, 2019)
      This paper presents a new solution algorithm to solve the resource-constrained project scheduling problem with activity splitting and setup times. The option of splitting activities, known as activity preemption, has been studied in literature from various angles, and an overview of the main contributions will be given. The solution algorithm makes use of a meta-heuristic search for the resource-constrained project scheduling problem (RCPSP) using network transformations to split activities in subparts. More precisely, the project network is split up such that all possible preemptive parts are incorporated into an extended network as so-called activity segments, and setup times are incorporated between the different activity segments. Due to the inherent complexity to solve the problem for such huge project networks, a solution approach is proposed that selects the appropriate activity segments and ignores the remaining segments using a boolean satisfiability problem solver, and afterwards schedules these projects to near-optimality with the renewable resource constraints. The algorithm has been tested using a large computational experiment with five types of setup times. Moreover, an extension to the problem with overlaps between preemptive parts of activities has been proposed and it is shown that our algorithm can easily cope with this extension without changing it. Computational experiments show that activity preemption sometimes leads to makespan reductions without requiring a lot of splits in the activities. Moreover, is shown that the degree of these makespan reductions depends on the network and resource indicators of the project instance.
    • Resources access needs and capabilities as mediators of the relationship between VC firm size and syndication

      Verwaal, Ernst; Bruining, Hans; Wright, Mike; Manigart, Sophie; Lockett, Andy (Small Business Economics, 2010)
    • Responding to Societal Expectations

      Lenssen, Gilbert; Van den Berghe, Lutgart; Louche, Céline (Corporate Governance: International Journal of Business in Society, 2005)
    • Response preference in organizational behavior research: do respondents to classical and internet surveys possess different psychological characteristics

      Mestdagh, Steven; Buelens, Marc (2003)
      The Internet has become a widespread tool for conducting research in organizational behavior. Little is known, however, of the psychological characteristics of Internet users. In the present study, differences in motivation, satisfaction, behavioral patterns and work outcomes are examined among respondents who had the choice of either filling in an online or a traditional pen-and-paper version of a large-scale Flemish survey (N=5853). Participants in both groups were mostly professional workers. After controlling for demographic variables, our results suggest that those who responded over the Internet place higher importance on opportunities for self-development and on assuming responsibility than those who opted for the pen-and-paper version. Moreover, Internet respondents appeared to be less satisfied with the content of their jobs and with their bosses. They also reported a significantly higher intention to leave the organization. Finally, the Internet group reported less compulsive work addiction, fewer health complaints, and less work-to-family conflict. The results allow us to conclude that Internet respondents more closely represent the image of the modern professional workforce, as often characterized in terms of shifting psychological contracts, values and career expectations. KEYWORDS: Internet Surveys, Organizational Behavior
    • Response styles and how to correct them

      Weijters, Bert; Geuens, Maggie; Schillewaert, Niels (GfK Market Intelligence Review, 2009)