In this paper, we present a dynamic model modified with emission permit banking and pollution abatement, and investigate the effect of emission permit banking and pollution abatement on the production–inventory strategy of the firm. After introducing emission permit banking and pollution abatement, the cost function consists of the inventory holding and production costs, the cost of investment ...

We study the performance of a flexible manufacturing line producing multiple products under different material control strategies. Specifically, we compare the throughput versus average inventory characteristics when the line operates under pure pull and pure push strategies. Using simulation we show that the pure push strategy has a higher throughput for a given level of inventory than the pur...

Seasonal items like fruits, fish, winter cosmetics, fashion apparel, etc. generally exhibits different demand patterns at various times during the season. Production and inventory planning must reflect this property for cost effectiveness and optimization of resources. This paper presents two production-inventory models for perishable seasonal products that minimize total inventory costs. The m...

The practice of inventory pooling–serving two or more separate markets using a common inventory stock–is extensively studied in operations management. The operational benefits of this strategy are well known: when demand is stochastic, combining multiple markets reduces aggregate uncertainty and improves the firm’s ability to efficiently match supply and demand, increasing profit as a result. I...

this paper aims to evaluate inventory cost of a two-echelon serial supply chain system under vendor managed inventory program with stochastic demand, and examine the effect of environmental factors on the cost of overall system. for this purpose, we consider a two-echelon serial supply chain with a manufacturer and a retailer. under vendor managed inventory program, the decision on inventory le...

different factors determine language teachers’ degree of success in their teaching practices. among these factors, teachers’ own learning experience can play a pivotal role since it affects teachers’ attitudes toward aspects of the knowledge they are to teach. educators and researchers may have paid less attention to an indispensable component of teachers’ learning experience: learning strategi...

gaining insights into the learners’ individual characteristics such as beliefs about language learning and their relationship with learning strategies is essential for planning effective language instruction. thus, the present study investigated the relationship between beliefs about language learning and learning strategy use in iranian high school students. this study also compared the correl...