Inventory decision models with competition existing between two parallel supply chains

Zhang, Airong; Guo, Xiang; Zhang, Zigang

doi:10.1504/ijsom.2009.025122

Cited by 9 publications

(4 citation statements)

References 21 publications

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“…All of these papers studied a two-echelon model and optimized the total profit function ( Table 1). Gürler and Yılmaz [45] and Zhang et al [46] observed lost sales through the service level; Zhang et al [47] and Zhang et al [48] did not study lost sales in the model, which limited the usefulness of the study. While papers that ignored substitution considered the total cost function, papers that included substitution considered total profit.…”

Section: The Effects Of Substitutionmentioning

confidence: 99%

Effects of Consumer Demand, Product Lifetime, and Substitution Ratio on Perishable Inventory Management

2018

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With the intensification of global population, food security is a big concern. Food waste stems from inappropriate inventory management. Companies offer a wide range of products to capture more sales, yet this increases inventories and complicates inventory management. Management challenges are worsened by three factors: uncertain consumer demand, product lifetimes, and consumer substitution among the product range. This research aims to understand the effects of these factors on inventory performance. The analytic hierarchy process (AHP) method was used to weight the importance of each of the non-financial performance measures from the simulation results and data envelopment analysis (DEA) was used to rank and evaluate the scenarios. Then, the most favorable scenario or replenishment policy, which had the lowest DEA efficiency score, was chosen. The results show that when the substitution ratio is greater, its interaction with consumer demand and product lifetime has mostly a small-or medium-sized effect on retailers' performance, in contrast to relatively larger effects on the supplier. These findings show that suppliers' performance is affected largely by the existence of the bullwhip effect in the model. Recommendations are provided for managers who are facing uncertainties of consumer demand, substitution, and product lifetime.

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Section: The Effects Of Substitutionmentioning

confidence: 99%

Effects of Consumer Demand, Product Lifetime, and Substitution Ratio on Perishable Inventory Management

2018

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“…Ha and Tong [12] studied a linear pricing contract and analyzed investment effect on competition in the supply chain. Through a dual brand replacement, Zhang et al [13] built a competitive model, analyzed the replacement level of inventory, and investigated the expected profits on supply chain members.…”

Section: Operational Decisions Of Competitive Supply Chainsmentioning

confidence: 99%

“…Substitute Equation (14) into Equation (13), and the distributors' function of the wholesale price is obtained from the first-order optimal condition.…”

Section: Proof Of Propositionmentioning

confidence: 99%

Pricing Strategies for Competitive Water Supply Chains under Different Power Structures: An Application to the South-to-North Water Diversion Project in China

Fan²,

Yan

2018

Sustainability

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Abstract:Under two different power structures, where the supplier and the distributor, respectively, are modeled as the leader, this paper studies water pricing strategies in two competing water resources supply chains. We assume that each water supply chain consists of a risk-neutral water supplier and a risk-neutral water distributor. We build different decision models for two competitive water resources supply chains, derive the optimal decision strategies for the water supply chain members, and analyze how competition intensity affects these decisions. Analytical results show that when the supplier is the leader, its water wholesale price is always higher than that when the distributor serves as the leader. On the other hand, the retail price and the two supply chains' channel profits depend on the competition intensity, but are independent of the power structure. To illustrate the proposed models, we apply them to examine the water pricing strategies in the South-to-North Water Diversion Project in China. The results showed significant insights into the pricing strategies of water resources in different routes of this massive water diversion project.

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“…Many authors have focused on modelling approaches to improve the efficiency of material handling times to gain better performance in the supply chain; several scientific contributions have aimed to minimize material handling costs or picking operations, evaluating new optimization criteria [32, 33, 34, 35, 36, 37, 38]. Lots of studies have centred on the general case of the order picking cycle due to its importance in increasing operation efficiency and decreasing labour workload [39].…”

Section: Previous Researchmentioning

confidence: 99%

The Effect of Slot-Code Optimization in Warehouse Order Picking

Fumi

Scarabotti

Schiraldi

2013

International Journal of Engineering Business Management

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This work presents the effect, in terms of travel distance and material handling time reductions, of an optimal rather than a uniform item allocation in one-block picking warehouses, both with and without the use of a simple picking heuristic. Since developing efficient product-location strategies represents a critical issue in Operations Management, due to the impact on warehouse performance in terms of both service level and operation costs, this paper focuses on an effective quantification of obtainable travel time reductions, obtaining a significant result for manufacturing companies aiming to determine the most appropriate material handling resource configuration. Building on previous work on the effect of slot-code optimization on travel times in single/dual command cycles, the authors broaden the scope to include the most general picking case, thus widening the range of applicability and realising former suggestions for future research

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Inventory decision models with competition existing between two parallel supply chains

Cited by 9 publications

References 21 publications

Effects of Consumer Demand, Product Lifetime, and Substitution Ratio on Perishable Inventory Management

Effects of Consumer Demand, Product Lifetime, and Substitution Ratio on Perishable Inventory Management

Pricing Strategies for Competitive Water Supply Chains under Different Power Structures: An Application to the South-to-North Water Diversion Project in China

The Effect of Slot-Code Optimization in Warehouse Order Picking

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