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In this paper, we study the problem of scheduling and dispatching vehicles in vehicle-based internal transport systems within warehouses and production facilities. We develop and use two rolling horizon policies to solve real-time vehicle scheduling problems. To solve static instances of...
Persistent link: https://www.econbiz.de/10005288597
In this paper we introduce robust versions of the classical static and dynamic single leg seat allocation models as analyzed by Wollmer, and Lautenbacher and Stidham, respectively. These robust models take into account the inaccurate estimates of the underlying probability distributions. As...
Persistent link: https://www.econbiz.de/10005288598
We survey the methodological advances in DEA over the last 25 years and discuss the necessary conditions for a sound empirical application. We hope this survey will contribute to the further dissemination of DEA, the knowledge of its relative strengths and weaknesses, and the tools currently...
Persistent link: https://www.econbiz.de/10005288599
We find that changes in oil prices strongly predict future stock market returns in many countries in the world. In our thirty year sample of monthly data for developed stock markets, we find statistically significant predictability in 12 out of the 18 countries and in a world market index. For...
Persistent link: https://www.econbiz.de/10005288600
The focus in research upon resources, dynamic capabilities and competences has challenged firms to apply these concepts to improve their competitive position. Management consulting firms may assist clients in these efforts. However, the roles that management consulting firms fulfill in these...
Persistent link: https://www.econbiz.de/10005288601
[Please note that there exists an updated version of this publication at http://hdl.handle.net/1765/8989] This study investigates the factors explaining the number of hours invested in new ventures, making a distinction between the effect of preference for work time versus leisure time and that...
Persistent link: https://www.econbiz.de/10005288602
As multi-national firms and major offshore outsourcing companies develop experience with global work, their globally distributed teams face the challenge of collaborating intensely without the common interaction advantages associated with collocated work. This chapter analyzes the sources of...
Persistent link: https://www.econbiz.de/10005288603
Local governments in Western Europe increasingly use city time-access regulations to improve social sustainibility. These regulations significantly influence the distribution process of retail chain organizations. This paper studies the impact of governmental timewindow pressure on...
Persistent link: https://www.econbiz.de/10005288604
Nowadays, the U.S. pharmaceutical industry has been under thorough scrutiny. Popular press claims of intensive marketing activities that go beyond R&D, the strong increase of me-too drugs, and, at the same time, the high industry profitability have contributed to public skepticism. Despite this...
Persistent link: https://www.econbiz.de/10005288605
Persistent differences in the level of business ownership across countries have attracted the attention of scientific as well as political debate. Cultural as well as economic influences are assumed to play a role. This paper deals with the influence of cultural attitudes towards uncertainty on...
Persistent link: https://www.econbiz.de/10005288606