PhD defense: Integration and coordination of supply chain
On Friday 14 December 2012 Jiehong Kong will hold a trial lecture on a prescribed topic, and defend her thesis for the PhD degree at NHH.
07.12.2012 - Ed.
The scope of this thesis is modeling large-scale planning problems in the divergent supply chains within forestry and petroleum industries. The objective is to improve the integration between several supply chains and to improve the coordination of decoupled units within a supply chain. The methodology is based on operations research and real-world case studies.
Four research papers are included. The first two papers concentrate on the integration of two separate supply chains (SC) in the initial stage of the overall forestry supply chains while the other two papers focus on coordination issues using the notion of internal/transfer pricing.
More specifically, Paper I integrates the roundwood SC with the forest biomass SC in an optimization model and studies the impact of the integration on market prices for raw materials.
Paper II extends the work by developing a new method that synchronously chooses harvest areas and determines the market prices.
Paper III studies the intra-organizational coordination between strategic forest management and tactical industrial production, whereas Paper IV investigates the cross-functional coordination in an oil refinery. Sophisticated methods are proposed to define the appropriate internal prices as coordination mechanism.
All the problems are multicommodity flow problems, formulated as either mixed integer programming or quadratic programming models, involving SC activities such as procurement, production, distribution and sales.
All the models developed take into account the dynamic relationship between prices and volumes, either on the supply side or on the demand side. Furthermore, they consider divergent supply chains which are known to be very hard to plan and coordinate. These assumptions provide a better understanding of how the price behavior will influence the flows in the entire supply chains.
The case studies are based on industrial instances. The first two papers are based on a collaboration with the Forestry Research Institute of Sweden and use data from one of its member companies. The third is based on a Chilean forest company and the fourth paper is written within the context of a Norwegian refinery. The thesis is a good example of the applications of operations research and mathematical programming to analyze, model and solve real-life problems.
Prescribed topic for the trial lecture:
Price or resource control in decentralized planning: pros and cons
Time of the trial lecture:
10:15 - 11:00 in Finn Kydland's Auditorium, NHH
Title of the thesis:
Integration and coordination of supply chain: Case studies in the forestry and petroleum industries
Time and place for the defense:
12:15 in Finn Kydland's Auditorium, NHH
Evaluation committee:
Professor Kurt Jörnsten, NHH, chair
Dr. Helene Lidestam, Linköping University
Dr. Dick Carlsson, LKAB
Supervising committee:
Professor Mikael Rönnqvist, NHH, principal supervisor
Dr. Jens Bengtsson, NHH/UMB, Norway
Professor Sophie D'Amours, Université Laval, Québec, Canada
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