Quality of customer service in supply chain system: a diagnostic study

1998 ◽  
Vol 15 (8/9) ◽  
pp. 844-859 ◽  
Author(s):  
R.K. Sinha ◽  
A. Subash Babu
Keyword(s):  
Supply Chain ◽  
Customer Service ◽  
Diagnostic Study ◽  
Supply Chain System ◽  
Chain System ◽  
System A

scholarly journals Demand Allocation and Profit Sharing to Improve Salt Farmer’s Revenue: A Cooperative Game Approach

2021 ◽  
Author(s):  
Iffan Maflahah ◽  
Budi Santoso Wirjodirdjo ◽  
Putu Dana Karningsih
Keyword(s):  
Supply Chain ◽  
Cooperative Game ◽  
Bargaining Power ◽  
Cooperative Game Theory ◽  
Positive Impact ◽  
Profit Sharing ◽  
Supply Chain System ◽  
Savings And Loans ◽  
Chain System

Abstract The main problem of the salt supply chain system is the oligopoly market structure dominated by middlemen which reduces the bargaining power of farmers. It has, however, been discovered that vertical collaboration (farmers to cooperatives) and horizontal collaboration (farmers to farmers) models have the ability to increase farmers' revenue. Therefore, this research was conducted to determine the effect of both horizontal and vertical collaboration models on the salt supply chain system with the expectation to increase farmers' revenue. This involved the application of the cooperative game theory with Shapley's value used as the basis for decision making. The result showed that the collaboration of stakeholders in the salt supply chain system has the ability to increase farmers' revenue, especially when they sell a maximum of 20% of their products through cooperatives and the rest through middlemen. This means the existence of farmers as cooperative members has a positive impact as observed in the revenue increment. Therefore, it is recommended that cooperatives improve their functions and roles as providers of savings and loans and market seekers, determine the appropriate prices for salt, and improve the quality of the products produced by their members. Moreover, a collaboration between farmers is mutually beneficial and this means efforts should be made to ensure cooperation, especially for small farmers.

scholarly journals Dynamic Complexities in a Supply Chain System with Lateral Transshipments

Complexity ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Yongchang Wei ◽  
Fangyu Chen ◽  
Feng Xiong
Keyword(s):  
Supply Chain ◽  
Customer Service ◽  
State Space Model ◽  
Bullwhip Effect ◽  
Performance Measurements ◽  
Supply Chain System ◽  
Chain System ◽  
Customer Service Level ◽  
Lateral Transshipment ◽  
The Stability

The horizontal interaction between retailers, coupled with replenishment rules and time delays, makes the dynamics in supply chain systems highly complicated. This paper aims to explore the impacts of lateral transshipments on the stability, bullwhip effect, and other performance measurements in the context of a two-tiered supply chain system composed of one supplier and two retailers. In particular, we developed a unified discrete-time state space model to address two different scenarios of placing orders. Analytical stability results are derived, through which we found that inappropriate lateral transshipment policies readily destabilize the supply chain system. Moreover, the lead time of lateral transshipments further complicates the stability problem. Theoretical results are validated through simulation experiments and the influences of system parameters on performance measures are investigated numerically. Numerical simulations show that lateral transshipments help improve the customer service level for both retailers. It is also interesting to observe that the demand of the two retailers can be satisfied even if only one retailer places orders from the upstream supplier.

scholarly journals Modeling the Multi-channel Section in the Supply Chain System using the Multiserver Queue Analogy

2021 ◽  
Vol 23 (1) ◽  
pp. 47-54
Author(s):  
Petrus Setya Murdapa
Keyword(s):  
Supply Chain ◽  
Distribution Centers ◽  
Lot Size ◽  
Supply Chain System ◽  
Channel Section ◽  
Chain System ◽  
System A ◽  
Branching Point ◽  
Waiting Line ◽  
Multi Server

The industry generally consists of a supply chain system. The main constituents of any supply chain system are suppliers, manufacturers, distribution centers, and retailers. The system configuration can be straight chain, branched, cyclic, or a combination of all. An analytical model is needed to study system behavior as a result of the dynamics of its constituents. Modeling a multi-channel section becomes quite a challenging job in this regard. A method of modeling the multi-channel section will be discussed in this paper by adopting multi-server queues. As is well known, in a multi-server queue, there is a branching point at which the flow of entities begins to spread across several parallel servers. In the modeling perspective of this paper, the branching point is in the buffer (finished good warehouse in the factory, i.e., the focal echelon). That is the end of the waiting line from which the entity specifically moves to one of the servers, or in this context; it is called a channel. In this paper, the number of channels can be any, generalizable, can be more than two. Hence, the subsystem studied includes a factory, finished product warehouse, and several distribution centers. The factory produces by the mechanism of, where and r are stopping point and production restarting point, respectively. Production stops when the quantity of finished product in the warehouse reaches units and will restart the production when the quantity drops to the same or lower than units. The model is developed under Markovian assumptions by considering the quantities of production rates, the number of distribution centers (channels), travel time from factories to each distribution center, delivery lot size, and the time between the arrival of orders from distribution centers. The system under study is seen as a case of two echelons, namely factories and distribution channels. The numerical model obtained is applied to one case example with certain conditions. Comparisons with discrete simulation results give relatively small and acceptable differences. So, in the future, this model can complement the overall modeling of the supply chain system, a multi-echelon system with multi-channel distribution.

scholarly journals Improving the Quality of the Goods Delivery Supply Chain System with the Integration of Lean Six Sigma and AHP Methods

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Muhammad Iqbal Maulana ◽  
Hana Catur Wahyuni
Keyword(s):  
Supply Chain ◽  
Quality Improvement ◽  
Six Sigma ◽  
Lean Six Sigma ◽  
Research Needs ◽  
Supply Chain System ◽  
Chain System ◽  
Logistics Service ◽  
Selection For

Astrans Putra Logistik Ltd. is a logistics service company with shipping routes in Sidoarjo, Denpasar, Lombok and NTB. Some of the problems that occur, such as delays in the pick-up process of goods to the load that large but not enough for departure, cause the quality of the supply chain system to be poor. So this research needs to be done with the aim of knowing the point of waste in the supply chain, identifying the sigma value, and determining the priority for its improvement. Quality improvement is carried out using the Lean Six Sigma method with AHP integration as a priority selection for improvement. From the research results, it was found that there was waste that caused 3 (three) CTQ, namely delivery was delayed, goods were damaged or leaked, and there was a difference in the number of goods. The company's DPMO value is 34272 with a sigma value of 3.34. The priority for improvements that can be made based on AHP weight, namely check the package packages before they are sent (0,353), make SOP for the preparation of goods (0,167), and apply SOP for goods checking documents (0,142).

scholarly journals Analysis and framework for agricultural supply chain improvement: a case study of california papaya in cikarang

2019 ◽  
Vol 3 (2) ◽  
pp. 107
Author(s):  
Johan K. Runtuk ◽  
Anstasia L. Maukar
Keyword(s):  
Supply Chain ◽  
Modified Atmosphere Packaging ◽  
Field Studies ◽  
Chain Process ◽  
Supply Chain System ◽  
Chain System ◽  
Supply Chain Process

Excessive waste is one of the problems in the food supply chain system. This study aims to identify supply chain players, map, and reduce waste that occurs in the Papaya California agribusiness supply chain process in Cikarang, Bekasi. Data collection was obtained from the results of field studies and interviews with parties involved in the supply chain such as farmers, distributors, retailers, and consumers. Increasing the effectiveness of Papaya's supply chain network is by improving the quality of packaging (modified atmosphere packaging (MAP), smart packaging, active packaging, and intelligent packag­ing), sharing data among chain players supply, implement refri­ge­ration and monitor transportation technology and promote the long term.  Good coordination between parties involved in the Papaya supply chain has a significant role in creating an effective and effici­ent supply chain system.

scholarly journals Pricing-Decision and Coordination Contract considering Product Design and Quality of Recovery Product in a Closed-Loop Supply Chain

2015 ◽  
Vol 2015 ◽  
pp. 1-14 ◽  
Author(s):  
Qingming Zou ◽  
Guangyu Ye
Keyword(s):  
Supply Chain ◽  
Closed Loop ◽  
Wholesale Price ◽  
Retail Price ◽  
Recycling Rate ◽  
Supply Chain System ◽  
Closed Loop Supply Chain ◽  
Chain System ◽  
Total Profit

In a closed-loop supply chain consisting of a manufacturer and a retailer, this paper studies the pricing strategies and coordination mechanism of supply chain when the remanufacturing cost is random caused by the proportion of reusability parts in design stage and quality condition of recycling product. The results show that the wholesale price and retail price are negative correlation, while the recycling rate and total profit of supply chain system are positive correlation with the proportion of reusability component designed in new product and quality of recycling product. Moreover, there are conclusions that the wholesale price and retail price are lower while the recycling rate and total profit of supply chain system are higher with centralized decision. Then, in order to coordinate the closed-loop supply chain, this paper develops a revenue-sharing contract, in which the revenue share parameter is determined based on absolute deviation approach. The theoretical results are illustrated by a numerical example.

Sign in / Sign up

Export Citation Format

Share Document