The optimal buffer allocation in queueing network systems is a difficult stochastic, non-linear, integer mathematical programming problem. Moreover, the objective function, the constraints or both are usually not available in closed-form, making the problem even harder. A good approximation for the performance measures is thus essential for a successful buffer allocation algorithm. A recently p...

This paper addresses the UMTS system performance analysis over dedicated channels based on buffer length allocation and dynamic allocation control procedures. Throughput and access delay for packet data transmission is evaluated as a function of network load for both of the allocation procedures. A mathematical model, which can be used to analyze the throughput of UMTS dedicated channel, is pro...

Supply chain excellence has a real huge impact on business strategy. Building supply chains (SCs) as flexible system represents one of the most exciting opportunities to create value. This requires integrated decision making amongst autonomous chain partners with effective decision knowledge sharing among them. The key to success lies in knowing which decision has more impact on the supply chai...

In an independent, private values, second-price auction with entry fees we discuss the way in which a seller should optimally spread costly information among the bidders. We find that marginal gross revenues do not generally behave monotonically in total information release. In the two bidder case, essentially, any asymmetric allocation of information dominates the symmetric information allocat...

This paper studies loan collateral and relationship banking. A firm has different loans (e.g. short-term and long-term loans) and alternative collateral assets. How does it allocate the collateral assets between the loans? It optimally secures a long-term loan with collateral that incurs high information costs initially and has a strong learning effect during the loan period (e.g. accounts rece...

This article analyses the optimal allocation of prizes in contests. While existing models on contest design take the set of participants as being exogenously given, in our model contests compete for participants. Our analysis provides a new argument for the widespread occurrence of prizes that reward suboptimal performance. Moreover, we identify a negative relationship between a contest’s predi...

This paper discusses two optimal allocation problems. We consider different hypotheses of portfolio selection with stable distributed returns for each of them. In particular, we study the optimal allocation between a riskless return and risky stable distributed returns. Furthermore, we examine and compare the optimal allocation obtained with the Gaussian and the stable non-Gaussian distribution...

Keeping and weakening only one assumption from Zheng (2002), who constructs an optimal auction with resale, we prove that the sealed-bid second-price auction with resale implements the optimal allocation in Myerson (1981)’s regular case with two bidders. We also construct other optimal mechanisms with resale.

Large-scale dairy farms around Damascus do not have enough land for forage cultivation mainly due to high price of land, allocation of land for vegetable production, which is more economically important than fodder cultivation and unfavourable climatic factors. Farms are therefore forced to transport roughage from distant crop cultivating areas. In the case of the dairy farm described in this w...

the allocation of human resources to project activities in order to schedule them is one of the closest states to the actual conditions of scheduling problems. but regarding the fact that this problem belongs to the class of np-hard problems; so far the exact methods have only been able to solve the small size problems. in this study, the renewable resources are humans in a way that every staff...