Social Responsibility in Production & Supply Chain Management eJournal最新文献_第3页

A Mean-Variance Disaster Relief Supply Chain Network Model for Risk Reduction with Stochastic Link Costs, Time Targets, and Demand Uncertainty 具有随机环节成本、时间目标和需求不确定性的减灾供应链网络均值方差模型

Social Responsibility in Production & Supply Chain Management eJournal Pub Date : 2016-11-25 DOI: 10.2139/ssrn.2646867

A. Nagurney, L. Nagurney

{"title":"A Mean-Variance Disaster Relief Supply Chain Network Model for Risk Reduction with Stochastic Link Costs, Time Targets, and Demand Uncertainty","authors":"A. Nagurney, L. Nagurney","doi":"10.2139/ssrn.2646867","DOIUrl":"https://doi.org/10.2139/ssrn.2646867","url":null,"abstract":"In this paper, we develop a mean-variance disaster relief supply chain network model with stochastic link costs and time targets for delivery of the relief supplies at the demand points, under demand uncertainty. The humanitarian organization seeks to minimize its expected total operational costs and the total risk in operations with an individual weight assigned to its valuation of the risk, as well as the minimization of expected costs of shortages and surpluses and tardiness penalties associated with the target time goals at the demand points. The risk is captured through the variance of the total operational costs, which is relevant to the reporting of the proper use of funds to stakeholders, including donors. The time goal targets associated with the demand points enable prioritization as to the timely delivery of relief supplies. The framework handles both the pre-positioning of relief supplies, whether local or nonlocal, as well as the procurement (local or nonlocal), transport, and distribution of supplies post-disaster. The time element is captured through link time completion functions as the relief supplies progress along paths in the supply chain network. Each path consists of a series of directed links, from the origin node, which represents the humanitarian organization, to the destination nodes, which are the demand points for the relief supplies. We propose an algorithm, which yields closed form expressions for the variables at each iteration, and demonstrate the efficacy of the framework through a series of illustrative numerical examples, in which trade-offs between local versus nonlocal procurement, post- and pre-disaster, are investigated. The numerical examples include a case study on hurricanes hitting Mexico.","PeriodicalId":301337,"journal":{"name":"Social Responsibility in Production & Supply Chain Management eJournal","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129819344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

Arrangement of Inventory Policies across Echelons of the Supply Chain for Minimization of Cost and Variance of Inventory 供应链各层次库存政策的安排以实现成本和库存方差的最小化

Social Responsibility in Production & Supply Chain Management eJournal Pub Date : 2016-11-05 DOI: 10.2139/ssrn.2864944

Venkata Dilip Kumar Pasupuleti

{"title":"Arrangement of Inventory Policies across Echelons of the Supply Chain for Minimization of Cost and Variance of Inventory","authors":"Venkata Dilip Kumar Pasupuleti","doi":"10.2139/ssrn.2864944","DOIUrl":"https://doi.org/10.2139/ssrn.2864944","url":null,"abstract":"A model is built to study the impact of the variance of demand on the supply chain inventory and also to identify the best arrangement of the inventory policy across the supply chain. The basic objective of Inventory management by an entity is either to prevent stock out or lock up of working capital. However, benefit of individual entity might not result in value to supply chain. A simulation study was undertaken on the four-echelon supply chain by varying demand at retailer echelon in phases from 10% to 70%. The best arrangement of inventory policy (choosing policy for each echelon from a choice of six familiar policies) across the supply chain is identified for attaining objective of minimization of either cost or variance. It is found that the both the demand flow and moving average policy are dominant inventory policies in attaining these objectives. Contemporary information of demand at retailer echelon drives the costs minimization and variance minimization of the supply chain. Study also identifies the best arrangement for the objective of cost minimization at the each echelon too. The arrangement of inventory policy identified for individual echelon benefit varies from the best arrangement identified for the supply chain benefit. This substantiates that the individual echelon benefit would be deterrent to the value of the supply chain.","PeriodicalId":301337,"journal":{"name":"Social Responsibility in Production & Supply Chain Management eJournal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114306539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cascading Trade Protection: Evidence from the US 级联贸易保护:来自美国的证据

Social Responsibility in Production & Supply Chain Management eJournal Pub Date : 2016-10-03 DOI: 10.2139/ssrn.2847007

A. Erbahar, Y. Zi

引用次数: 16

Extending the Supply Chain Visibility Boundary: Utilizing Stakeholders for Identifying Supply Chain Sustainability Risks 扩展供应链可见性边界:利用利益相关者识别供应链可持续性风险

Social Responsibility in Production & Supply Chain Management eJournal Pub Date : 2016-08-12 DOI: 10.1108/IJPDLM-02-2015-0043

C. Busse, M. Schleper, Jenny Weilenmann, Stephan M. Wagner

{"title":"Extending the Supply Chain Visibility Boundary: Utilizing Stakeholders for Identifying Supply Chain Sustainability Risks","authors":"C. Busse, M. Schleper, Jenny Weilenmann, Stephan M. Wagner","doi":"10.1108/IJPDLM-02-2015-0043","DOIUrl":"https://doi.org/10.1108/IJPDLM-02-2015-0043","url":null,"abstract":"Purpose – The purpose of this paper is to investigate how buying firms facing low supply chain visibility can utilize their stakeholder network to identify salient supply chain sustainability risks (SCSR). Design/methodology/approach – The study employs a design science approach to develop a procedural model for identifying SCSR as a new artifact. A small-scale field-testing study in a food supply chain of a Swiss retail firm demonstrates its applicability and pragmatic validity. Findings – When stakeholder knowledge external to the supply chain is regarded as a valuable resource, a generic understanding of a buying firm’s supply chain suffices to identify SCSR hotspots without creating complexity for the SCSR management. Research limitations/implications – The paper contributes to the study of SCSR by identifying mechanisms buying firms can employ to identify SCSR hotspots and fostering the nascent understanding of responsibility attribution by stakeholders. Moreover, the emerging theory of the supply chain is enriched by paving a way to extend the supply chain visibility boundary. The procedural model is presumably most useful in contexts of elevated stakeholder pressure and low supply chain visibility. Future research should seek to validate and improve the effectiveness of the newly designed artifact. Practical implications – The procedural model is directly applicable in corporate practice to the identification of SCSR. Moreover, its application fosters the understanding of a firm’s supply chain and its stakeholder network.originality/value – SCSR is an increasingly important phenomenon in corporate practice that has received only scarce research attention. The design science approach represents a valuable means for generating theoretical insights and emergent solutions to the real-world problem of SCSR identification.","PeriodicalId":301337,"journal":{"name":"Social Responsibility in Production & Supply Chain Management eJournal","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128891829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 132

The Changing Role of Minerals in Society: Managing a Shift in Supply and Demand Centres 矿物在社会中不断变化的作用:管理供需中心的转移

Social Responsibility in Production & Supply Chain Management eJournal Pub Date : 2016-08-03 DOI: 10.2139/ssrn.2817864

Saleem H. Ali

引用次数: 0

Gold Futures Returns and Realized Moments: A Forecasting Experiment Using a Quantile-Boosting Approach 黄金期货收益和实现时刻:使用分位数提升方法的预测实验

Social Responsibility in Production & Supply Chain Management eJournal Pub Date : 2016-06-14 DOI: 10.2139/ssrn.2795445

M. Bonato, Rıza Demirer, Rangan Gupta, Christian Pierdzioch

引用次数: 12

In Search of Efficient Networks Using Bilevel Evolutionary Optimization 利用双层进化优化寻找高效网络

Social Responsibility in Production & Supply Chain Management eJournal Pub Date : 2016-06-01 DOI: 10.2139/ssrn.2788307

G. Whittaker

{"title":"In Search of Efficient Networks Using Bilevel Evolutionary Optimization","authors":"G. Whittaker","doi":"10.2139/ssrn.2788307","DOIUrl":"https://doi.org/10.2139/ssrn.2788307","url":null,"abstract":"This study introduces a method for finding input and output values that result in efficiency for all decision making units (DMUs) in all stages of a production network. This method contrasts with the usual application of DEA for measurement of efficiency and comparison of decision making units. Two-stage data envelopment analysis (DEA) networks represent internal production processes, including inputs to each stage, intermediate variables that serve as outputs from one stage and inputs to another, and feedback among stages. A directed acyclic network is usually used for the measure of efficiency, but the presence of feedback requires an undirected network. The static network with feedback is important for analysis of recycling and re-use processes, but the measures in these cases are non-linear with multiple solutions. Here, a two-stage DEA network was defined as a bilevel optimization where the upper level maximized ParetoKoopmans efficiency while efficiency of each DMU in each stage was calculated in the lower level. In an application to published data from a two-stage network with feedback, hypervolumes were observed where every interior point was Pareto-Koopmans efficient. The Pareto-Koopmans hypervolume associated with the feedback network was modeled with a Bayesian network, and simulations from the model used to visualize efficient space. The use of Bayesian networks to generate virtual DMUs provided a computationally inexpensive method to explore the trade-offs among efficient networks to meet stakeholder preferences. Overall, this application of bilevel evolutionary optimization provides a novel method for solving nonlinear DEA problems with feedback.","PeriodicalId":301337,"journal":{"name":"Social Responsibility in Production & Supply Chain Management eJournal","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127938907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Mining in Arctic and Non-Arctic Regions: A Socioeconomic Assessment 北极和非北极地区的采矿:社会经济评估

Social Responsibility in Production & Supply Chain Management eJournal Pub Date : 2016-04-25 DOI: 10.2139/ssrn.2769191

Anders Frederiksen, M. Kadenic

引用次数: 1

Natural Resource Conflicts as a Struggle for Space: The Case of Mining in Tanzania 自然资源冲突是对空间的争夺:以坦桑尼亚的矿业为例

Social Responsibility in Production & Supply Chain Management eJournal Pub Date : 2015-11-30 DOI: 10.2139/ssrn.2697052

Japhace Poncian, H. Kigodi

{"title":"Natural Resource Conflicts as a Struggle for Space: The Case of Mining in Tanzania","authors":"Japhace Poncian, H. Kigodi","doi":"10.2139/ssrn.2697052","DOIUrl":"https://doi.org/10.2139/ssrn.2697052","url":null,"abstract":"Natural resource extraction in Africa has been characterised by conflicts between large scale and small scale miners on the one hand and large scale miners and the communities on the other. In some countries such as Sudan, Democratic Republic of Congo, Angola, Mozambique, Sierra Leone and Liberia, natural resources have bred political instability and civil wars. A great deal of academic discourse on resource conflicts in Africa focuses on greed, corruption, political struggles for state capture and control over resources, economic liberalisation policies for attracting foreign investors and creating conducive climate for them to invest their capital in natural resource extraction, and foreign forces. While recognising the significance of the above approaches in explaining resource conflicts in Africa, this paper aims at explaining resource conflicts as a struggle for space between the communities, artisanal and small scale miners and large scale foreign mining corporations. The paper, therefore, argues that natural resource extraction conflicts in Africa can well be understood if we approach them as a struggle for space. Data for this paper are drawn from secondary sources including academic literature, government reports, media reports and internet sources.","PeriodicalId":301337,"journal":{"name":"Social Responsibility in Production & Supply Chain Management eJournal","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122501917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Green-Field Architecture for Sustainable Supply Chain Strategy Formulation 可持续供应链战略制定的绿地架构

Social Responsibility in Production & Supply Chain Management eJournal Pub Date : 2015-06-01 DOI: 10.20944/PREPRINTS201904.0116.V1

P. Radanliev

引用次数: 14