In this paper, an Economic Order quantity (E.O.Q) model with unit production cost, time depended holding cost, with-out shortages is formulated and solved. In most real world situation, the objective and constraint function of the decision makers are uncertainty in nature so the coefficients, indices the objective function and constraint goals are imposed here in fuzzy environment The problem i...

An EOQ (Economic Order Quantity) model for a deteriorating item with quadratic demand pattern and quadratic holding cost and constant deterioration rate is considered in this paper. In addition, shortages and partial backlogging are allowed. It is assumed that the backlogging rate acts as not only a variable, but also depends on the length of the waiting time up to next replenishment during the...

policy makers have taken into less consideration the market mechanism in the allocation of water resources, contrary to its long role and precedent in allocation goods and resources. the market mechanism is used in many regions of world for water management to increase the water scarcity certainly, but historical form of acquiring water resources didn’t lead to a proper market so economic price...