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We extend the linear programming (LP) model of deterministic supply-chain planning to take demand uncertainty and cash flows into account for the medium term. The resulting stochastic LP model is similar to that of Asset-Liability Management (ALM), for which the literature using stochastic...
Persistent link: https://www.econbiz.de/10014057431
The paper is concerned with the reduction of a class of stochastic optimal control problems to simpler problems by using decomposition and aggregation. Decomposition is shown to provide a good approximation when the system dynamics involve nearly decomposable matrices or variables with strong...
Persistent link: https://www.econbiz.de/10014046440
In this paper, we identify a new class of stochastic Iinear convex optimal control problems, whose solution can be obtained by solving appropriate equivalent deterministic optimal control problems. The term 'linear convex' is meant to imply that the dynamics is linear and the cost function is...
Persistent link: https://www.econbiz.de/10014046447
Quite often transportation companies face two types of jobs, ones which they can plan themselves and ones which have to be done on call. In this paper we study the scheduling of these jobs, while we assume that job durations are known beforehand as well as windows in which the jobs need to be...
Persistent link: https://www.econbiz.de/10013134525
We study a model for scheduling 'n' classes of stochastic jobs on a single machine, with the objective of minimizing the total expected holding cost (discounted or undiscounted). We allow general holding cost rates that are separable, nondecreasing and convex on the number of jobs in each class....
Persistent link: https://www.econbiz.de/10014129376
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We present a new model formulation for a multi-product lot-sizing problem with product returns and remanufacturing subject to a capacity constraint. The given external demand of the products has to be satisfied by remanufactured or newly produced goods. The objective is to determine a feasible...
Persistent link: https://www.econbiz.de/10013081889
In this paper we explore whether the incorporation of systematic time series analyses and mathematical optimization procedures in the practical planning process has the potential to improve production program decisions. The cases of four German cash crop farms are investigated over six planning...
Persistent link: https://www.econbiz.de/10014177598
The differentiation of products and services parallel with the globalization, motivated researchers to commit resources within supply chains more effectively. Competitive nature of the markets requires innovativeness with swift actions to supply mass customized demand. The total cost in the...
Persistent link: https://www.econbiz.de/10012962781