todays, improving the competitiveness of companies and rapidly responding to diverse customers’ demands requires efficient management of the supply chain. integration is one of the effective indices in a supply chain, and vendor managed inventory (vmi) is one of the innovative approaches in this field. in this paper, an integrated model based on a vmi system for deteriorating and ameliorating i...

This paper is considering the competition between two multi-echelon supply-chains on price and service under balance and imbalance of market power between the chains which are analyzing through Nash and Stackelberg game approach. The problem is categorized as the centralized or decentralized structure of each chain, which means a few different possible scenarios are developing based on the Nash...

Supply chains are networks of independent companies in a dynamic environment. The goal of supply chain management is the coordination of these companies in dynamic environment. This research addresses the decentralized coordination of independent operations planning in order to achieve near-optimal solution. Using a heuristic search with local optimization we coordinate two partners of a supply...

The ‘‘bullwhip’’ effect is a major cause of supply chain deficiencies. This phenomenon refers to grow the amplification of demand or inventory variability as it moves up the supply chain. Supply chain managers experience this variance amplification in both inventory levels and orders. Other side, dampening variance in orders may have a negative impact on customer service due to the increase in ...

Corporate image is an important organizational resource that enables to create, strengthen and sustain competitive advantage. Different antecedents have been identified for corporate image in the literature including quality of products and services, consumer consideration or distribution system. Green supply chain management appears to be an antecedent of corporate image too. This study examin...

Modeling and optimal solving of supply chain management problems lead to efficient decision making in strategic planning and supply chain operations, resulting in a competitive advantage. Today, with the planning of a sustainable supply chain, in addition to achieving economic goals, it is possible to meet social and environmental objectives and considerations. This research deal with sustainab...

Supply chain management is a crucial task of managing large organizations. In a decentralized supply chain each member focuses on maximizing his own profit. As a result of it, the conflict between the manufacturer and the retailers will arise. To avoid this sort of situations, coordination model strike a balancing between the profit of manufacturers and retailers. This paper investigates a two ...

We consider a general multi-principal multi-agent contracting game in a complete-information supply-chain setting and determine coordinating equilibrium transfer schedules in closed form. The resulting contracts manage to align incentives for decentralized decision-making and achieve first-best channel solutions. We allow for multidimensional actions and arbitrary payoff externalities between a...

Consider a multi-channel supply chain (hereafter SC) system, producing and distributing two substitutable products. Within this framework, we study the SC efficiency by comparing several decentralized SC configurations with a centralized one. Our result show that it is often possible to achieve 93.5% or more of the total profit of a centralized SC in a decentralized configuration, which suggest...