in this paper, the problem of lot sizing, scheduling and delivery of several items in a two-stage supply chain over a finite planning horizon is studied. single supplier via a flexible flow line production system (ffl) produces several items and delivers them directly to an assembly facility. based on basic period (bp) strategy, a new mixed zero-one nonlinear programming model has been develope...

Inventory record inaccuracy deteriorates supply chain performance because it leads to ineffective replenishment decisions. Conducting cycle counts (i.e., periodic inventory auditing) is a common approach to correct inventory records. It is not clear, however, how inaccuracy at different locations affects supply chain performance and how an effective cycle-count program for a multi-stage supply ...

We estimate a DSGE model with (S,s) inventory policies. We …nd that (i) taking inventories into account can signi…cantly improve the empirical …t of DSGE models in matching the standard business-cycle moments (in addition to explaining inventory ‡uctuations); (ii) (S,s) inventory policies can signi…cantly amplify aggregate output ‡uctuations, in contrast to the …ndings of the recent general-equ...

Inventory models play a leading role in analyzing a lot of realistic situations arising at places like, food and vegetable markets, market yards, oil exploration industries, etc. In the present article, we developed an inventory model for deteriorating items with permissible delay in payment under inflation. In the given model, demand rate is considered as stock-dependent and deterioration rate...

Efficiency in the supply chain can be established by integrating supplier-retailer inventory policy. This article proposes integrated model between under stochastic demand. aims to determine optimal review period and calculate total cost, including some defective items, backorder price discounts, losing flexibility costs. We assume that retailer order 'n' times for every 'm' shipment from suppl...

The objective of this research is to tackle the emerging problem of jointly determining theoptimal retail price, the replenishment cycle, and the cost of preservation technology investment from an integrated perspective among the supplier and the manufacturer. This paper deals an integrated single-manufacturer single-retailer supply chain model for deteriorating items under revenue sharing on p...

This study investigates the single-vendor single-buyer integrated production inventory models with controllable lead time. The lead time demand is stochastic and shortage during the lead time is permitted. The buyer orders a lot of size Q and the vendor manufactures mQ with a finite production rate P at one set-up but ships in quantity Q to the buyer over m times. Most researchers do not take t...

This paper presents a methodology to integrate life cycle assessment (LCA) in models used to design energy conversion systems. It is illustrated by an application to a thermo-economic model for the multi-objective optimization of synthetic natural gas (SNG) production from woody biomass. The life cycle inventory (LCI) is written as a function of the parameters of the thermoeconomic model. The o...