The tendency of orders to increase in variability as one moves up a supply chain is commonly known as the bullwhip effect. We study this phenomenon from a behavioral perspective in the context of a simple, serial, supply chain subject to information lags and stochastic demand. We conduct two...

This paper studies supply chain demand variability in a model with one supplier and Nretailers that face stochastic demand. Retailers implement scheduled ordering policies: Orders occur at fixed intervals and are equal to some multiple of a fixed batch size. A method is presented that exactly...

Consider a supplier selling to multiple retailers. Demand varies across periods, but the supplier's capacity and wholesale price are fixed. If demand is high, the retailers' needs exceed capacity, and the supplier must implement an allocation mechanism to dole out production. We examine how the...

The bullwhip effect is the phenomenon of increasing demand variability in the supply chain from downstream echelons (retail) to upstream echelons (manufacturing). The objective of this study is to document the strength of the bullwhip effect in industry-level U.S. data. In particular, we say an...

The Quantity Flexibility (QF) contract is a method for coordinating materials and information flows in supply chains operating under rolling-horizon planning. It stipulates a maximum percentage revision each element of the period-by-period replenishment schedule is allowed per planning...

A major cause of supply chain deficiencies is the bullwhip effect. Supply chain managers experience this variance amplification in both inventory levels and replenishment orders. In this paper, we analyse a major cause of the bullwhip effect, namely the classical Order-Up-To (OUT) policy and...

In this paper, assuming the demand is auto-correlated time series process, we examine the inventory variation under a specific myopic ordering policy with two different forecasting techniques. Our main findings are: 1) inventory variations are usually non-stationary, which suggests inventory...

In recent days, the industrial sector is characterised by saturated worldwide target markets and high expectations of the consumers. This new context subjects the company to a great deal of pressure. Therefore, companies try to optimise their supply chains in order to improve their...

Following the global economic crisis, some organizations have managed to find new opportunities for development. The research aims to explore these opportunities in the extended supply chain by analyzing key features that until now were left behind to care for the cost and sales volume. A...

Purpose – The purpose of this paper is to analyze the effect of batching on bullwhip effect in a model of multi‐echelon supply chain with information sharing. Design/methodology/approach – The model uses the system dynamics and control theoretic concepts of variables, flows, and feedback...