Multi-Echelon Supply Chains with Lead Times and Uncertain Demands

2021 ◽  
Vol 2 (3) ◽  
Author(s):  
Hadi Farhangi
Keyword(s):  
Supply Chains ◽  
Lead Times

scholarly journals Lead Times – Their Behavior and the Impact on Planning and Control in Supply Chains

2017 ◽  
Vol 8 (2) ◽  
pp. 30-40 ◽  
Author(s):  
Peter Nielsen ◽  
Zbigniew Michna ◽  
Brian Bruhn Sørensen ◽  
Ngoc Do Anh Dung
Keyword(s):  
Supply Chains ◽  
Lead Time ◽  
Large Impact ◽  
Lead Times ◽  
Stochastic Nature ◽  
Planning And Control ◽  
And Control ◽  
The Impact ◽  
Independent And Identically Distributed

AbstractLead times and their nature have received limited interest in literature despite their large impact on the performance and the management of supply chains. This paper presents a method and a case implementation of the same, to establish the behavior of real lead times in supply chains. The paper explores the behavior of lead times and illustrates how in one particular case they can and should be considered to be independent and identically distributed (i.i.d.). The conclusion is also that the stochastic nature of the lead times contributes more to lead time demand variance than demand variance.

scholarly journals Post-shipment financial flows in supply chains: A study of small- to medium-sized enterprise importers

2019 ◽  
Vol 13 ◽  
Author(s):  
Francois Schutte ◽  
Wesley Niemann ◽  
Theuns Kotzé
Keyword(s):  
Supply Chain ◽  
Supply Chains ◽  
Financial Burden ◽  
Management Strategies ◽  
Lead Times ◽  
Global Sourcing ◽  
Working Capital ◽  
Structured Interviews ◽  
Short Supply ◽  
Financial Flows

Background: Global sourcing has impacted inventory levels, lead times and the availability of working capital, affecting the standard financial flow of a supply chain. Poorly managing the link between the financial and physical supply chains could therefore lead to unnecessarily high inventory investments or to a short supply of inventory, affecting cash flow, working capital, sales and, subsequently, a firm’s profitability.Objectives: The aim of this generic qualitative study was to explore how firms manage their financial supply chain alongside their physical supply chain.Method: Data were collected from 12 semi-structured interviews with senior managers across six small- to medium-sized enterprise (SME) importing firms in various industries.Results: The research finds that the buyer is the driver of both upstream and downstream financial supply chain management (FSCM) as SME importers in Gauteng are proactively managing their financial alongside their physical supply chains. Through the continuous evaluation of sourcing strategies, exchange rate risk management strategies and inventory investment management strategies, firms can align their physical and financial supply chains.Conclusion: This study highlights the lead time and disruption risks and costs of global sourcing and identifies FSCM tools that can be used to alleviate the financial burden associated with long lead times.

Multi-echelon inventory management in supply chains with uncertain demand and lead times: Literature review from an operational research perspective

2007 ◽  
Vol 221 (10) ◽  
pp. 1553-1570 ◽  
Author(s):  
A Taskin Gümüs ◽  
A Fuat Güneri
Keyword(s):  
Literature Review ◽  
Supply Chains ◽  
Customer Service ◽  
Inventory Management ◽  
Operational Research ◽  
Point Of View ◽  
Future Research ◽  
Lead Times ◽  
Research Perspective ◽  
Lead Time Uncertainty

Historically, the echelons of the supply chain, warehouse, distributors, retailers, etc., have been managed independently, buffered by large inventories. Increasing competitive pressures and market globalization are forcing firms to develop supply chains that can quickly respond to customer needs. To remain competitive and decrease inventory, these firms must use multi-echelon inventory management interactively, while reducing operating costs and improving customer service. The current paper reviews the literature, addressing multiechelon inventory management in supply chains from 1996 to 2005. The behaviour of the papers against demand and lead-time uncertainty is the key analysis point of the literature review presented here and it is conducted from an operational research point of view. Finally, directions for future research are suggested.

scholarly journals Analysis of Asymmetric Quantity Commitment in Decentralized Supply Chains

2021 ◽  
Vol 12 (2) ◽  
pp. 83-102
Author(s):  
Zhaoqiong Qin ◽  
Wen-Chyuan Chiang ◽  
Robert Russell
Keyword(s):  
Supply Chains ◽  
Price Competition ◽  
Just In Time ◽  
Lead Times ◽  
Backward Induction ◽  
Multi Stage ◽  
Stage Game ◽  
Time Systems

Quantity commitment chosen by firms in competition has been demonstrated by previous studies to mitigate price competition. This study demonstrates that asymmetric quantity commitment can always arise when one firm (e-tailer) shortens lead times or adopts just-in-time systems to circumvent quantity commitment while another firm (retailer) does not. To study the asymmetric quantity commitment in decentralization, a multi-stage game is analyzed, and backward induction is adopted. The authors find that the retailer always adopts the quantity commitment in the decentralization to achieve a higher profit.

Sign in / Sign up

Export Citation Format

Share Document