Yazar "Sari K." seçeneğine göre listele
Listeleniyor 1 - 4 / 4
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Exploring the benefits of vendor managed inventory(2007) Sari K.Purpose - The purpose of this paper is to explore the performance increase achieved by vendor managed inventory (VMI) under different levels of outside supply capacity, demand uncertainty, and lead time. Design/methodology/approach - The study uses discrete event simulation to explore the performance increase achieved by VMI under different supply chain scenarios. Findings - The analysis suggests that when implementing a VMI program, the capacity restrictions of suppliers have to be taken into consideration even though they have not participated in the program. Furthermore, the results also show that unless the retailer provides additional information to the distributor to resolve the uncertainty, higher levels of uncertainty in market demand create significant reductions in the savings realized by VMI. Finally, this study proves that, regardless of lead time horizons, VMI provides nearly the same level of performance increase as long as the ratio of the retailer's lead time to that of the supplier's remains constant. Practical implications - This analysis provides a means for practitioners to understand the impact of various environmental and operational factors on the performance increase achieved by VMI so they can better analyze their specific business conditions to prepare their organizations for more successful VMI programs. Originality/value - Although there is a range of research focusing on VMI, only a few of those have tried to identify the factors that play an important role in the failure of VMI programs. While extending the current literature, this is the first study to explore the impact of outside supply capacity on the performance improvements achieved by VMI. © Emerald Group Publishing Limited.Öğe Prioritizing the factors affecting the retailer's supply chain performance(Academy of Management, 2013) Bayraktar E.; Sari K.; Tatoglu E.; Zaim S.[No abstract available]Öğe A simulation model for managing outsourcing decisions(Inderscience Publishers, 2010) Sari K.; Oktay F.; Tevfik A.T.The aim of this research is to contribute into the development of a strategic and systematic outsourcing decision-making framework for practitioners. In this regard, the authors propose a concrete decision framework that would incorporate quantitative measures and financial dimensions in outsourcing decision-making process. In addition, the authors also provide a platform to make outsourcing decisions under high uncertainty levels associated with insufficient and/or imprecise data. For this purpose, Monte Carlo simulation is used to evaluate the financial results of an outsourcing ecision based on a real industrial case. On the other hand, to express the environmental uncertainties and market dynamics into the analysis, fuzzy set theory is utilised. Therefore, this research, as dealing with one of the most important topics in industrial management, provides a better decision framework for practitioners using appropriate quantitative techniques. Copyright © 2010 Inderscience Enterprises Ltd.Öğe Simulation study of SCM-related factors on retailer's performance using structural equation model(2010) Bayraktar E.; Lin C.-C.; Sari K.In this study, a two-level supply chain with linear demand and seasonal swings is simulated under varying operating situations in order to explore the relationships among bullwhip effect, lead time, forecast accuracy, seasonality, service levels and retailer's performance. Next, a series of univariate tests are undertaken to identify the relationships among the simulation outputs. Based on a structural equation model (SEM), a research framework is developed and tested to provide a rigorous analysis for the casual links among the SCM-related variables and retailer's performance. When the ratio of backorder to holding cost is lower than 8, lead time would appear as the most significant factor influencing total inventory cost. However, when this ratio is higher than 8, both bullwhip ratio and lead time appear to be equally important factors in improving retailer's performance. Finally, the forecast accuracy was found to have a positive effect on reducing total inventory cost. ©2010 IEEE.