Filters








163 Hits in 9.5 sec

A robust optimization approach to reduce the bullwhip effect of supply chains with vendor order placement lead time delays in an uncertain environment

Chong Li, Sifeng Liu
2013 Applied Mathematical Modelling  
Additionally, the maximum allowable vendor order placement lead time delay that ensures the stability of supply chains and the suppression of bullwhip effect under the proposed inventory control policy  ...  The bullwhip effect problem of supply chain systems with vendor order placement lead time delays in an uncertain environment is addressed in this paper.  ...  Acknowledgments The authors thank the anonymous referees and editors for their valuable comments and suggestions on this paper.  ... 
doi:10.1016/j.apm.2012.02.033 fatcat:qjunlrlqwfhgdaaukzqxu4yzvu

Systematic Risk and the Bullwhip Effect in Supply Chains

Nikolay Osadchiy, Vishal Gaur, Sridhar Seshadri
2011 Social Science Research Network  
We investigate the systematic risk component of demand uncertainty using industry-level data for the manufacturing, wholesale trade, and retail trade sectors of the U.S. economy, and applying sales as  ...  Investigating two potential sources of this phenomenon, amplification of production series as predicted by the bullwhip effect and aggregation of orders placed by downstream industries, we find evidence  ...  The variance of demand in supply chains has also been studied in the context of the bullwhip effect.  ... 
doi:10.2139/ssrn.1876443 fatcat:u6fqpdvbnvgnlbsvceltuxyztq

Systematic Risk and the Bullwhip Effect in Supply Chains

Nikolay Osadchiy, Vishal Gaur, Sridhar Seshadri
2011 Social Science Research Network  
We investigate the systematic risk component of demand uncertainty using industry-level data for the manufacturing, wholesale trade, and retail trade sectors of the U.S. economy, and applying sales as  ...  Investigating two potential sources of this phenomenon, amplification of production series as predicted by the bullwhip effect and aggregation of orders placed by downstream industries, we find evidence  ...  The variance of demand in supply chains has also been studied in the context of the bullwhip effect.  ... 
doi:10.2139/ssrn.1931737 fatcat:tet32m5clzdgzeykzvtcimpbmq

GA AND DERIVATIVE DERIVED GENERALIZED PREDICTIVE CONTROL IN REDUCING BULLWHIP EFFECT

H. W. Gomma, MIEEE
2006 JES. Journal of Engineering Sciences  
In supply chains, the phenomenon of bullwhip effect (the variance amplification of order quantities observed in supply chain) has received a considerable attention by companies as it leads to tremendous  ...  This would help decision-makers in supply chains management to reduce the negative consequences of the bullwhip effect.  ...  Therefore, this concept can be introduced to the supply chain to reduce bullwhip effect in a robust manner in the presence of an inaccurate lead time, production time and forecast estimates.  ... 
doi:10.21608/jesaun.2006.110567 fatcat:4av52mnipzbrpahuaskh6tb4my

The Impact of Ordering Behavior on Order-Quantity Variability: A Study of Forward and Reverse Bullwhip Effects

Ying Rong, Zuo-Jun Max Shen, Lawrence V. Snyder
2009 Social Science Research Network  
In general, demand uncertainty and an underweighting of the supply line cause the BWE, while safety stock inventory dampens it.  ...  We use simulation and live beer game experiments to test the effect of various ordering behaviors under a range of settings for the supply process in a serial supply chain.  ...  Introduction The bullwhip effect (BWE) describes the amplification of order variability as one moves upstream in the supply chain. The BWE was formally introduced and analyzed by Lee et al.  ... 
doi:10.2139/ssrn.1289830 fatcat:z4h3ajapcnbrzbraoufmogp2da

Understanding the Phenomenon of Bullwhip Effect in Relation to Supply Chain Strategies: FMCG industry

Thokozani Patmond Mbhele, Maxwell Agabu Phiri
2014 Mediterranean Journal of Social Sciences  
bullwhip effect and supply chain strategies should optimize product flows and availability from the amplified demand order oscillations.  ...  The model will help to address the challenges of bullwhip effect and further enhance the overall efficient frontiers of supply chain performance.  ...  as less likely that the retail supply chain could experience the presence of oscillating bullwhip effect.  ... 
doi:10.5901/mjss.2014.v5n20p570 fatcat:vlvn7yylkjhntduq3ibgpun6mm

On Replenishment Rules, Forecasting, and the Bullwhip Effect in Supply Chains

Stephen M. Disney, Marc R. Lambrecht
2005 Foundations and Trends® in Technology Information and Operations Management  
The bullwhip effect: The dynamics of supply chains The "bullwhip effect" is short-hand term for a dynamical phenomenon in supply chains.  ...  This creates distorted demand information in the supply chain and consequently the bullwhip effect.  ...  Assume demand is a stationary i.i.d. random process with a positive mean, D D   4  , greater than four standard deviations of the demand variance to ensure the likelihood of negative demand is negligible  ... 
doi:10.1561/0200000010 fatcat:k7ia2pcnzngvfhyja2pu755emi

The impact of ordering behavior on order-quantity variability: a study of forward and reverse bullwhip effects

Ying Rong, Zuo-Jun Max Shen, Lawrence V. Snyder
2008 Flexible Services and Manufacturing Journal  
In general, demand uncertainty and an underweighting of the supply line cause the BWE, while safety stock inventory dampens it.  ...  We use simulation and live beer game experiments to test the effect of various ordering behaviors under a range of settings for the supply process in a serial supply chain.  ...  Introduction The bullwhip effect (BWE) describes the amplification of order variability as one moves upstream in the supply chain. The BWE was formally introduced and analyzed by Lee et al.  ... 
doi:10.1007/s10696-009-9054-3 fatcat:iki2xwcx7fe7zmya3tbm7kv67a

Robust inventory control of production systems subject to uncertainties on demand and lead times

Rosa Abbou, Jean Jacques Loiseau, Charifa Moussaoui
2016 International Journal of Production Research  
We examine then the bullwhip effect phenomenon, which is an important observation in supply chain management.  ...  Our model includes two factors that commonly have an impact on the supply chain performances and cause the bullwhip effect: the variability of the customer demand and the uncertainty on the lead time.  ...  Otherwise, λ > 1 corresponds to the presence of the bullwhip effect in the supply chain.  ... 
doi:10.1080/00207543.2016.1214295 fatcat:x6rf7kxrjngnhpmd4t66tqxlj4

Order Stability in Supply Chains: Coordination Risk and the Role of Coordination Stock

Rachel T. A. Croson, Karen Lisa Donohue, Elena Katok, John Sterman
2004 Social Science Research Network  
The bullwhip effect describes the tendency for the variance of orders in supply chains to increase as one moves upstream from consumer demand.  ...  Here we examine causes of the bullwhip through experiments with a serial supply chain, using the Beer Distribution Game.  ...  Acknowledgement This research was supported by NSF Grant SES-0214337 and a grant from the Center for Supply Chain Research (CSCR), Smeal College of Business, Penn State University.  ... 
doi:10.2139/ssrn.607321 fatcat:mbz7c42xizduxcv2q45i3wiw6e

Dynamic Analysis and Optimization of a Production Control System under Supply and Demand Uncertainties

Qiankai Qing, Wen Shi, Hai Li, Yuan Shao
2016 Discrete Dynamics in Nature and Society  
This study investigates the dynamic performance and optimization of a typical discrete production control system under supply disruption and demand uncertainty.  ...  Two different types of uncertain demands, disrupted demand with a step change in demand and random demand, are considered.  ...  Acknowledgments This work was supported by the National Natural Science Foundation of China (nos. 71401129, 71501147, 71402048, and 71502176) and China Postdoctoral Science Foundation (nos. 2016M592340  ... 
doi:10.1155/2016/6823934 fatcat:lmuleg7huvhd3hzeqwgfda5nvu

On bullwhip in supply chains—historical review, present practice and expected future impact

S. Geary, S.M. Disney, D.R. Towill
2006 International Journal of Production Economics  
In this paper we have identified 10 published causes of bullwhip, all of which are capable of elimination by re-engineering the supply chain.  ...  We offer evidence on the present "health" of a family of supply chains, and pinpoint much good practice.  ...  This included such events as demand waveforms being propagated upstream in the supply chain, the inducing of "rogue seasonality" in the order patterns and the consequent wrong-footing of decision makers  ... 
doi:10.1016/j.ijpe.2005.05.009 fatcat:qaoou4zhergnllvib3oaroqsqq

Order Stability in Supply Chains: Coordination Risk and the Role of Coordination Stock

Rachel Croson, Karen Donohue, Elena Katok, John Sterman
2013 Production and operations management  
The bullwhip effect describes the tendency for the variance of orders in supply chains to increase as one moves upstream from consumer demand.  ...  Nevertheless, we find that the bullwhip effect persists in this setting and offer one possible explanation based on coordination risk.  ...  Supply chain instability is often attributed, in part, to the bullwhip effect.  ... 
doi:10.1111/j.1937-5956.2012.01422.x fatcat:6v66jsazfrdaxkcdycfccqmxfy

Determining inventory service support levels in multi-national companies

G. Don Taylor, Doug M. Love, Miles W. Weaver, James Stone
2008 International Journal of Production Economics  
Five dimensions of supply chain performance were monitored independently in three autonomous supply chain roles and operational settings adjusted accordingly.  ...  Factors employed to build the detailed model include: variable retail demand, order transmission, transportation delays, production delays, capacity constraints demand multipliers and demand averaging  ...  Throughout the supply chain, there exist various types of uncertainties, e.g., demand uncertainty, production uncertainty, and delivery uncertainty.  ... 
doi:10.1016/j.ijpe.2008.05.020 fatcat:n25gaqssfzgq3ctukhwoobzjme

Decoupling paradigm of push-pull theory of oscillation in the FMCG industry

T.P. Mbhele
2016 South African Journal of Business Management  
The results of the analysis indicate that the magnitude of control on the bullwhip effect and access to economic information on demand orders in the supply chain network are associated with the modelling  ...  The findings provide the perspective on managing amplification in consumer demand order variability upstream in the supply chain network while enhancing the overall efficiency of supply chain performance  ...  Contrarily, Chiang and Feng (2007:1429) advocate that information sharing is more beneficial for the manufacturer than for retailers in the presence of supply uncertainty and demand volatility.  ... 
doi:10.4102/sajbm.v47i2.60 fatcat:d6qyeezij5chtfme3uuv5iaybu
« Previous Showing results 1 — 15 out of 163 results