Flexible Configuration Logic for a complexity oriented design of production systems
Furthermore, estimating models with and without regulatory and environmental factors clearly indicates that the omission of environmental factors, such as network density, substantially changes parameter estimates and, hence, leads to biased estimation results. The objective of this paper is the comparison of the efficiency levels for a set of European rail companies in monopoly situations with respect to hypothetical duopoly situations. More specifically, the aim is to test whether the operating costs function of such companies is subadditive.
Proceedings of the Royal Society. Series B – biological sciences, 274(1614), pp. 1219-1224.
Kummer, Sebastian. 2000. Advanced Logistics Management, Supply Chain Management, Logistik-Controlling, E-commerce – the new challenge for logistics. Northern Jiatong, Universität Beijing, 12.06.
6th Annual Transport, Logistics and Supply Chain Congress for Enlarged/Europa, Budapest, Ungarn, 24-25.11. Kummer, Sebastian. 2012.
3 Dimensions of Supply Chain Flexibility- Flexibitity in Supply Chain Design,- Felxible Supply Chain Planning,-Flexible Supply Chain Processes. BASF Supply Chain Management Meeting, Ludwigshafen, Deutschland, 22.09. Groschopf, Wolfram, Fürst, Elmar Wilhelm M., Kummer, Sebastian. 2012.
A cost function is subadditive when a single firm can produce all relevant output vectors cheaper than two or more firms. In order to do so the test developed by Evans and Heckman (1984) will be used.
Development and validation of the AO pediatric comprehensive classification of long-bone fractures by the Pediatric Expert Group of the AO Foundation in collaboration with AO Clinical Investigation and Documentation and the International Association for Pediatric Traumatology. Clinical journal of the American Society of Nephrology, 2(6), pp. 1131-9.
Proceedings of the 5th International Conference on Supply Chain Management and Information Systems, Melbourne 9.-12.12.2007. Kummer, Sebastian.
2010. 3 Dimensional Supply Chain Flexibility. International Conference of Logistics Engineering and Management-Southwest Jiatong University, Chengdu, China, 08.10-09.10.
Kummer, Sebastian. 2014. Lessons learned from European Logistics and Supply Chain Management;Current Status, Challenges, Case Studies. Guest lecture, Xi’an University of Posts and Telecommunications, Xi’an, Shaanxi Province, 11.10. Kummer, Sebastian.
Kummer, Sebastian. 1994. Controlling Logistics in the German Automotive Industry. 37. Joint National Meeting of the Institute of Management Science and the Operations Research Society of America, Boston, Großbritannien, 25.4.
2006. Supply Chain Management Forum. Balance Resort Stegersbach, Österreich, 08.11. 2.lecture How do Companies and Countries gain competitive advantages through logistics,European Cases.
IEEE Engineering in Medicine and Biology Society conference proceedings, 2007, pp. 3685-3688. 2007 IEEE 10th International Conference on Rehabilitation Robotics. Proceedings of the 2007 IEEE 10th International Conference on Rehabilitation Robotics (pp. 1009-1015). Proceedings Joint 2007 EUMETSAT Meteorological Satellite Conference and the 15th Satellite Meteorology and Oceanography Conference of the American Meteorological Society, Amsterdam, the Netherlands. IEEE Engineering in Medicine and Biology Society conference proceedings, 2007, pp. 896-899.