• Job stress among middle-aged health care workers and its relation to sickness absence

      Verhaeghe, Rik; Mak, R.; Van Maele, G.; Kornitzer, M.; De Backer, G. (Stress and Health, 2003)
    • Jobhoppen naar de top

      Meganck, Annelies (HR Magazine, 2010)
    • Join the research

      Verhaeghe, Annelies; De Ruyck, Tom; Schillewaert, Niels (International Journal of Market Research, 2008)
    • The joint replenishment problem: Optimal policy and exact evaluation methody

      Creemers, Stefan; Boute, Robert (European Journal of Operational Research, 2022)
      We propose a new method to evaluate any stationary joint replenishment policy under compound Poisson demand. The method makes use of an embedded Markov chain that only considers the state of the system after an order is placed. The resulting state space reduction allows exact analysis of instances that until now could only be evaluated using approximation procedures. In addition, the size of the state space is not affected if we include nonzero lead times, backlog, and lost sales. We characterize the optimal joint replenishment policy, and use these characteristics to develop a greedy-optimal algorithm that generalizes the can-order policy, a well-known family in the class of joint replenishment policies. We numerically show that this generalized can-order policy only marginally improves the best conventional can-order policy. For sizeable systems with multiple items, the latter can now be found using our exact embedded Markov-chain method. Finally, we use our method to improve and extend the well-known decomposition approach.
    • A joint replenishment production-inventory model as an MMAP[K]/PH[K]/1 queue

      Noblesse, Ann M.; Sonenberg, Nikki; Boute, Robert; Lambrecht, Marc R.; Van Houdt, Benny (Stochastic Models, 2022)
      In this paper we analyse a continuous review finite capacity production-inventory system with two products in inventory. With stochastic order quantities and time between orders, the model reflects a supply chain that operates in an environment with high levels of volatility. The inventory is replenished using an independent order-up-to (s, S) policy or a can-order (s, c, S) joint replenishment policy in which the endogenously determined lead times drive the parameters of the replenishment policy. The production facility is modelled as a multi-type MMAP[K]/PH[K]/1 queue in which there are K possible inventory positions when the order is placed and the age process of the busy queue has matrix-exponential distribution. We characterize the system and determine the steady state distribution using matrix analytic methods. Using numerical methods we obtain the inventory parameters that minimize the total ordering and inventory related costs. We present numerical comparisons of independent and joint replenishment policies with varying lead times, order quantities, and cost reductions. We further demonstrate the interplay between the two products in terms of lead times, order quantities and costs.
    • Journey toward business models for sustainability

      Roome (+), Nigel; Louche, Céline (Organization & Environment, 2016)
      Scholars increasingly recognise that business contributions to sustainable development are
    • Judging Factor Abundance

      Bowen, Harry; Sveikauskas, Leo (The Quarterly Journal of Economics, 1992)
      Recent theory casts doubt on the frequently used interindustry regression method of inferring a country's abundant factors. The empirical importance of these theoretical qualifications is examined by comparing regression-derived estimates of factor abundance with both revealed and actual factor abundances for 35 countries and 12 resources. The theoretical importance of trade imbalances for the reliability of the regression estimates is demonstrated, and a theoretically consistent trade imbalance correction is proposed and implemented. The results indicate that, despite valid theoretical concerns, the regression estimates are generally reliable indicators of revealed factor abundance. Therefore, the innumerable regression studies conducted over the past 30 years can be considered to provide reliable evidence concerning the validity of the factor abundance theory.
    • Judgmental forecast adjustments over different time horizons

      Van den Broeke, Maud; De Baets, Shari; Vereecke, Ann; Baecke, Philippe; Vanderheyden, Karlien (Omega: the international Journal of Management Science, 2019)
      Accurate demand forecasting is the cornerstone of a firm’s operations. The statistical system forecasts are often judgmentally adjusted by forecasters who believe their knowledge can improve the final forecasts. While empirical research on judgmental forecast adjustments has been increasing, an important aspect is under-studied: the impact of these adjustments over different time horizons. Collecting data from 8 business cases, retrieving over 307,200 forecast adjustments, this work assesses how the characteristics (e.g., size and direction) and accuracy of consecutive adjustments change over different time horizons. We find that closer to the sales point, the number of adjustments increases and adjustments become larger and more positive; and that adjustments, both close and distant from the sales point, can deteriorate the final forecast accuracy. We discuss how these insights impact operational activities, such as production planning.
    • Kan uw onderneming voordeel halen uit target costing?

      Slagmulder, Regine (Tijdschrift voor Bedrijfsadministratie, 1999)
    • Kaplan of Goldratt? Het grote gelijk

      Bruggeman, Werner; Waeytens, Dominique (Logistiek Management, 1993)
    • KBC Mobile Banking

      Cumps, Bjorn; Viaene, Stijn (Journal of Information Technology Teaching Cases, 2015)
      When KBC Bank introduced their mobile banking application in 2011 they delivered much more than a piece of software. Mobile banking was a way to focus on their customers and rebuild trust. Yet, this case is not so much about what they delivered but how they delivered it. Agile development brought along both challenges and opportunities for KBC. The case explores how agile compares to traditional ways of ICT development. Can banks, given the new digital challenges, really build their future ICT portfolios on agile development?
    • Kenmerken van succesvolle loyaliteitsprogramma's

      Odekerken-Schröder, Gaby; Van Oppen, C.; De Wulf, Kristof; De Cannière, Marie (Tijdschrift voor Marketing, 2001)
    • Kenniswerk herontwerpen

      De Boeck, Gustaaf (HR Magazine, 2013)
    • Keuze van vermogensvoorziening

      Manigart, Sophie; Ooghe, Hubert (Management voor Ingenieurs, 1994)
    • Kiezen voor flexibiliteit

      Van Dierdonck, Roland; Vereecke, Ann (Business Logistics, 1999)
    • Knelpunten in de financiële dynamiek van de staatshervorming

      Bastiaens, E.; Buyst, Erik; Heremans, D.; Philipsen, C. (Leuvense Economische Standpunten, 2000)
    • Knowledge Conversion Capability and the Performance of Corporate and University Spin-offs

      Zahra, S.; Van de Velde, Els; Larrañeta, B. (Industrial and Corporate Change, 2007)
    • Knowledge discovery in a direct marketing case using least squares support vector machines

      Viaene, Stijn; Baesens, Bart; Van Gestel, Tony; Suykens, Johan A.K.; Van den Poel, Dirk; Vanthienen, Jan; De Moor, Bart; Dedene, Guido (+) (International journal of Intelligent Systems, 2001)
    • Knowledge discovery in data: naar performante én begrijpelijke modellen van bedrijfsintelligentie

      Baesens, Bart; Mues, Christophe; Vanthienen, Jan (Business Inzicht, 2003)