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Die starke Abhängigkeit von exogen determinierten Zuständen der Welt (Wetter, Krankheiten, Schädlinge etc.) ist konstituierendes Element der meisten landwirtschaftlichen Produktionsprozesse. Während diese Zustandsabhängigkeit auf der einen Seite eine Unsicherheitssituation entstehen lässt,...
Persistent link: https://www.econbiz.de/10011250295
We consider a single-echelon inventory installation under the (s,S,T) periodic review ordering policy. Demand is stationary random and, when unsatisfied, is backordered. Under a standard cost structure, we seek to minimize total average cost in all three policy variables; namely, the reorder...
Persistent link: https://www.econbiz.de/10010573969
A model that combines an inventory and location decision is presented, analyzed and solved. In particular, we consider a single distribution center location that serves a finite number of sales outlets for a perishable product. The total cost to be minimized, consists of the transportation costs...
Persistent link: https://www.econbiz.de/10010847890
A model that combines an inventory and location decision is presented, analyzed and solved. In particular, we consider a single distribution center location that serves a finite number of sales outlets for a perishable product. The total cost to be minimized, consists of the transportation costs...
Persistent link: https://www.econbiz.de/10010950275
A simulation optimization framework is proposed for supply chain inventory management of highly perishable products. A new replenishment policy based on old inventory ratio is developed, hence called OIR policy. It is an age-based policy using only partial age information to measure the...
Persistent link: https://www.econbiz.de/10011043370
In clinical practice, red blood cells (RBCs) have a maximal shelf life (MSL) of 42 days. Recent studies suggest managing RBC inventory with a more restrictive MSL. To this end, a new simulation optimization (SO) framework is proposed for blood supply chain inventory management with ABO blood...
Persistent link: https://www.econbiz.de/10010776681
Firms need to deal with not only risks from stochastic demand but also risks from supply side. The supply side risk may … how these two risks affect the decisions and profits of the firm. We find that increased supply risk usually causes … increased quantity/stocking decision, however, there exists a threshold level of supply risk above which the firm reduces …
Persistent link: https://www.econbiz.de/10010869106
maximize return while managing risk. Risk and return are quantities that are used as input parameters for the optimal …-Conditional Value at Risk (M-CVaR) portfolio selection problem under the estimation risk in mean return for both interval and …
Persistent link: https://www.econbiz.de/10011195095
In this paper we study distributionally robust constraints on risk measures (such<br/>as standard deviation less the … mean, Conditional Value-at-Risk, Entropic Value-at-Risk) of decision-dependent random variables. The uncertainty sets for … counterpart can be split into two parts: one corresponding to the risk measure and the other to the uncertainty set. We also show …
Persistent link: https://www.econbiz.de/10011144445
We consider a robust optimization model of determining a joint optimal bundle of price and order quantity for a retailer in a two-stage supply chain under uncertainty of parameters in demand and purchase cost functions. Demand is modeled as a decreasing power function of product price, and unit...
Persistent link: https://www.econbiz.de/10010636431