This paper formulates a stochastic inventory model for a single-period seasonal or fashion product inventory system consisting of multiple stocking echelons in series and retailers. By transforming model, an equivalent two-stage stochastic linear program model is developed to solve this stochastic inventory problem, which makes the inventory problem easier to analyze. The optimal placement poli...

In this paper, I review the literatures about Upper Echelons Theory. Specifically, focus on related theories, including agency theory, five-factor model, cognitive and heterogeneity so on; economic influences of Theory, corporate top management (team) administrative officials. Prior studies show that characteristics has effect governance, information disclosure tax avoidance, etc. Moreover, bac...

In this paper, we analyze the impact of a transportation disruption on supply chain performance by using system dynamics simulation. Performances of three different supply chains with Internet e-collaboration tools are compared with the assumption that a transportation disruption occurs within two echelons in a five-echelon supply chain. Numerical results are shown to reveal that from Non-colla...

A supply-chain is a series of connected stock management structures. Therefore, the structure of a supply-chain consists of many cascading inventory management problems. It is known that the optimal inventory control parameter values suggested by the literature are also valid for a supply-chain. The motivation for this study is to investigate the effect of the literature suggested optimal value...

Upper echelons theory suggests that the characteristics of chief executives affect the strategic choices of their organizations. In this paper we examine whether the characteristics of top managers make a difference to the extent of inter-organizational collaboration in the public sector. Using survey data from 228 chief executives from Catalonia, we test upper echelons theory, and control for ...

We study the interactions in a coherent community on Twitter to examine its structure. In particular we examine if there exists a hierarchical influence structure induced by the interactions which reflect a ranked partition of the users in the community where users retweet (forward) only messages from other users belonging to an equal or higher ranked group. We extract such ranked partition of ...

This article analyzes a supply chain management system (SCM), with two echelons. We consider a perishable inventory with Poisson demand, exponential life time and positive lead time at distribution center (DC) and retailer. Partial backlogging at retailer node is assumed with limited quantity. (s, S) policy at retailer and (M-1, M) policy at DC are assumed to get a tractable analytic solution. ...