Based on a particular case study, this paper presents two approaches to buffer management under demand uncertainty, which is characterized by high lumpiness, dispersion and volatility. The common theme of both of the two approaches is not to find an advanced statistical method to improve demand forecast on the basis of historical data. Rather, these approaches provide new business paradigms to ...

Firms use inventory and interruption insurance to manage disruption risk in their production chains. They also take preparedness actions to reduce the expected length of disruptions. We analytically explore these three measures in a two-stage production chain. We find that inventory and preparedness differ in their responses to insurance and to production-chain cost and risk characteristics. We...

We describe buffer for both immunoelectrophoresis and zone electrophoresis procedures in agarose gels, Tricine [N-tris(hydroxymethyl)methylglycine] and Tris [2-amino-2-(hydroxymethyl)-1,3-propanediol] being the main components. This buffer eliminates the procurement cost and inventory control associated with formulation of barbital buffers. We compare it with other common buffer formulations.

Manufacturers make production decisions and carry inventory to satisfy uncertain demand. When holding and shortage costs are high, carrying inventory could be even more expensive for a capacitated production system. Recent developments in information technology and sales strategies enabled firms to acquire, collect, or induce advance demand information. We address a periodic-review, stochastic,...

pistachio is a major agricultural export commodity in iran. nowadays, it ranks first among iran’s agricultural exports. this paper focuses on the comparative advantage in pistachio production and the export market in iran. a policy analysis matrix (pam) framework and revealed comparative advantage (rca) index are applied to 2000-2004 data to study iranian government policy regarding pistachio p...

Supply chain integrates supplier, manufacturer, wholesaler, retailer and end user to a system by logistics, business flow, information flow and cash flow. The enterprises in supply chain system are horizontally integrated and formed a strategic cooperative partnership. The supply chain inventory system is a sub-system of supply chain system. The purpose of inventory management of supply chain i...

We consider a production-inventory system that consists of an input-generating installation, a production unit and L intermediate buffers. It is assumed that the installation transfers the raw material j ∈ {1, . . . , L} to buffer Bj, and the production unit pulls the rawmaterial j ∈ {1, ..., L} from buffer Bj. We consider the problem of the optimal preventive maintenance of the installation if...

a new mathematical model for the optimal production isformulated for the inventory management system under time-varyingand stochastic inflation environment for deteriorating items. the timehorizon is finite and demand rate is dependent to the inflation. in thereal situation, some but not all customers will wait for backlogged itemsduring a shortage period, such as for fashionable commodities or...