Operations and Supply Chain Management Commons^™

An Empirical Study To Understand The Effectiveness And Scope Of Blockchain Technology In Indian Public Sector, Radhakrishnan Airy, Hritika Gajarlawar, Nilay Bajaria, Ganesh Joshi

Walden Faculty and Staff Publications

The Blockchain is a distributed database that is maintained as Blocks and contains all transactions or digital occurrences. These are the records of transactions that take place between parties.Blockchain blocks are kept as blocks and shared among participants. Each Block is examined, validated, and saved by the parties who are a part of the system/network, each brick is unique and contains the details of a single transaction as well as the transaction's hash key. The study offers insights to researchers about the opportunity threat and future use of blockchain in the public sector.

A Mixed-Methods Study To Determine The Impact Of Covid-19 On Food Security, Food Access And Supply In Regional Australia For Consumers And Food Supply Stakeholders, Stephanie Louise Godrich, Johnny Lo, Katherine Kent, Flavio Macau, Amanda Devine

Research outputs 2022 to 2026

Background: The COVID-19 pandemic has impacted the Australian food supply through changed consumer purchasing patterns, and potentially, household food security. The aim of this study was to determine the impact of COVID-19 on the prevalence of food insecurity and food supply issues, and perspectives of food supply stakeholders in regional Australia. Methods: A mixed-methods consumer survey and in-depth interviews with food supply stakeholders were conducted in regional Australia, more specifically South West Western Australia between May and July 2020, immediately after the 1st wave of the pandemic. Results: The prevalence of food insecurity was 21% among consumers, and significantly more …

Measuring Seaport Performance And Congestion In The Republic Of Korea, Derrick J. Lohr

Theses and Dissertations

Companies continue to globalize their supply chain operations increasing cargo traffic and creating excessive shipping demand on ports across the globe resulting in port congestion. This increased congestion impacts USTRANSCOM’s cargo movement operations, which compete for use of the same port resources. While the DoD has organic transportation capabilities, most of the cargo is moved by commercial ocean liners. It is, therefore, necessary to understand port operations, identify excess capacity, and exploit it to avoid congestion at ports. The purpose of this study is to identify peak and idle periods by evaluating the comparative performance of seaports using data envelopment …

Examining The Relationship Between An Aging Workforce And Logistics Performance Indicators, Daniel Parkhill

Theses and Dissertations

In the United States, 10,000 baby boomers turn 65 every day. The subsequent generation born between 1965 and 1976 is significantly smaller, referred to as the baby bust. As a result, this causes a talent shortage as Baby Boomers retire, leaving a workforce gap which the subsequent generation is not large enough to fill. This issue also has been recognized as a potential problem in the logistics community of the United States Air Force. The purpose of this study is to examine the impact of workers age on key logistics performance indicators (LPIs) such as aircraft availability, product flow days, …

Emergency Logistics Stochastic Network Optimization With Prepositioning And Distribution Center Support, Christian Graves

Theses and Dissertations

This study examines the Air Force Medical Service War Reserve Materiel supply chain management through the use of the supply chain optimization software anyLogistix. The goal is to illuminate potential improvements to policies that effect inventory management and test the effects of specific inputs, such as an influx of network support and capacity expansion, into the models. Network optimization shows the cost benefit analysis of these factors and if demand is satisfied through all demand points. Through three unique wartime scenarios, this study looks at the supply chain management of five prehospital analgesic medications: ketamine, morphine, fentanyl intravenous, fentanyl oral …

Pricing Under Uncertainty: Forward And Option Pricing In Sports Markets, Preethika Sainam, Sridhar Balasubramanian, Shantanu Bhattacharya, Lin L. Ong

Research Collection Lee Kong Chian School Of Business

Tickets to popular elimination style tournaments (e.g., NFL Super Bowl) are expensive and scarce. Sports organizations sell these tickets well in advance of the final game. Fans hesitate to buy them because they are unsure about whether their favorite team will play in it. We present two alternatives to the current practice: consumer forwards and options. A fan pays a reserve price to secure her team-specific forward ticket. If that team makes it to the final game, the fan must (in the option case, has the choice to) pay an exercise price to purchase the ticket. If the team does …

Analysis Of Container Shipments For Ustranscom, John N. Campos Y Campos

Theses and Dissertations

USTRANSCOM (United States Transportation Command) sends containers to various overseas destinations, mainly commercial container shipping companies. Delivering the containers to the destinations on time is important to support the United States (US) Forces deployed in foreign countries. This study analyzes container shipment records for two years from 2019 to 2021 and prepares insights for USTRANSCOM. This study utilizes descriptive statistics, data visualization, and one-way analysis of variance (ANOVA). According to the records, almost half of the containers (41.25%) were delivered late for one day or longer. The container with the longest delay took 408 days. Major reasons for delays included …

Number Of Authorized Suppliers And Supplier Delivery Performance, Beau D. Messenger

Theses and Dissertations

Every year, federal agencies spend over $500 billion to buy a wide variety of products and services, ranging from cutting-edge military aircraft to common office supplies. Supplier performance and sourcing strategies within the Air Force are distinctively complex due to the wide array of weapon systems and limited number of suppliers available within the marketplace. Academics and industry experts agree that the foundation for strong buyer-supplier relationships is a means to achieving superior performance. However, this dynamic can yield varying results when there are a limited number of suppliers available. One of the problems which emerges from the critical need …

Impact Of Restrictive Red Blood Cell Transfusion Strategy On Thrombosis-Related Events: A Meta-Analysis And Systematic Review, Mairehaba Maimaitiming, Chenxiao Zhang, Jingui Xie, Zhichao Zheng, Haidong Luo, Oon Cheong Ooi

Research Collection Lee Kong Chian School Of Business

Background and Objectives There is an ongoing controversy regarding the risks of restrictive and liberal red blood cell (RBC) transfusion strategies. This meta-analysis assessed whether transfusion at a lower threshold was superior to transfusion at a higher threshold, with regard to thrombosis-related events, that is, whether these outcomes can benefit from a restrictive transfusion strategy is debated. Materials and Methods We searched PubMed, Cochrane Central Register of Controlled Trials and Scopus from inception up to 31 July 2021. We included randomized controlled trials (RCTs) in any clinical setting that evaluated the effects of restrictive versus liberal RBC transfusion in adults. …

On The Test Accuracy And Effective Control Of The Covid-19 Pandemic: A Case Study In Singapore, Guang Cheng, Sarah Yini Gao, Yancheng Yuan, Chenxiao Zhang, Zhichao Zheng

Research Collection Lee Kong Chian School Of Business

This study examines the impact of coronavirus disease 2019 (COVID-19) test accuracy (i.e., sensitivity and specificity) on the progression of the pandemic under two scenarios of limited and unlimited test capacity. We extend the classic susceptible–exposed–infectious–recovered model to incorporate test accuracy and compare the progression of the pandemic under various sensitivities and specificities. We find that high-sensitivity tests effectively reduce the total number of infections only with sufficient testing capacity. Nevertheless, with limited test capacity and a relatively high cross-infection rate, the total number of infected cases may increase when sensitivity is above a certain threshold. Despite the potential for …

R&D Consortia In Competitive Supply Chains, Pascale Crama, Gaoyan Lu, Yi Xu

Research Collection Lee Kong Chian School Of Business

R&D consortia, which coordinate R&D activities of their member firms, have been successful in many industries. We study a model with two competing supply chains each consisting of a manufacturer and a supplier. The manufacturers compete in the final product market, and can conduct R&D to reduce unit product costs of their final products. The R&D can be done in three different ways: by the two manufacturers independently, by them jointly in a horizontal R&D consortium, or by the supplier and the manufacturer jointly in each supply chain in two vertical R&D consortia. We find that as compared to independent …

Stochastic Knapsack Revisited: The Service Level Perspective, Guodong Lyu, Mabel C. Chou, Chung-Piaw Teo, Zhichao Zheng, Yuanguang Zhong

Research Collection Lee Kong Chian School Of Business

A key challenge in the resource allocation problem is to find near-optimal policies to serve different customers with random demands/revenues, using a fixed pool of capacity (properly configured). In this paper, we study the properties of three classes of allocation policies-responsive (with perfect hindsight), adaptive (with information updates), and anticipative (with forecast information) policies. These policies differ in how the information on actual demand and revenue of each customer is being revealed and integrated into the allocation decisions. We show that the analysis of these policies can be unified through the notion of "persistency" (or service level) values-the probability that …

Coordinated Delivery To Shopping Malls With Limited Docking Capacity, Ruidian Song, Hoong Chuin Lau, Xue Luo, Lei Zhao

Research Collection School Of Computing and Information Systems

Shopping malls are densely located in major cities such as Singapore and Hong Kong. Tenants in these shopping malls generate a large number of freight orders to their contracted logistics service providers, who independently plan their own delivery schedules. These uncoordinated deliveries and limited docking capacity jointly cause congestion at the shopping malls. A delivery coordination platform centrally plans the vehicle routes for the logistics service providers and simultaneously schedules the dock time slots at the shopping malls for the delivery orders. Vehicle routing and dock scheduling decisions need to be made jointly against the backdrop of travel time and …

Developing A Food And Beverage Corporate Sustainability Performance Structure In Indonesia: Enhancing The Leadership Role And Tenet Value From An Ethical Perspective, Tat Dat Bui, Hania Aminah, Ching Hsin Wang, Ming Lang Tseng, Mohammad Iranmanesh, Ming K. Lim

Research outputs 2022 to 2026

The food and beverage industry is the second largest contributor to Indonesia’s economy; however, most industry firms significantly, and negatively, impact ecological and economic performance, and corporate sustainability performance is considered an area that can be significantly improved. This study aims to measure the causal interrelationships among the hierarchical attributes, as well as the decisive attributes that force successful corporate sustainability. Further, there are also other factors that have a negative impact, such as poor social justice and firms’ responsibilities and identities. Hence, emphasizing the ethics role to ensure a better sustainable performance in addition to focusing on the traditional …

Perceptions Of Employability Skills Of Undergraduate Business Students In A Developing Country: An Exploratory Study, Wise Mainga, Reuben M. Daniel, Luis Alamil

Higher Learning Research Communications

Objective: The purpose of this study was to determine the relative importance of different employability skills for business graduates seeking initial employment.

Method: Semi-structured survey questionnaires were administered to human resources representatives from industry, business lecturers, and graduating business students to determine gaps in perceptions between the three stakeholder groups.

Results: There was some alignment and moderate discrepancies in perceptions of the relative importance of different employability skills between the three stakeholder groups. There were statistically significant differences in perceived importance of communication, teamwork, and interpersonal skills between graduating students and employers. There is evidence that employers were satisfied with …

Apple And Foxconn: Addressing Power Imbalances In Global Supply Chains, Singapore Management University

Perspectives@SMU

Global suppliers such as Foxconn can form strong business networks to put pressure on dominant clients such as Apple to address power imbalances in global supply chains

Headquarters Report: A Look Back, A Step Forward, Karen Burgess Cae

The Journal of the Michigan Dental Association

In her Headquarters Report, MDA Executive Director Karen Burgess reflects on the dental landscape entering the third year of the COVID-19 pandemic, acknowledging the "new normal" with increased demand for services, staff shortages, and supply chain challenges. Despite uncertainties, the Michigan Dental Association (MDA) maintained membership numbers better than expected, with a slight decrease in market share. The report emphasizes the importance of member value, highlighted by a favorable Net Promoter Score (NPS) and positive feedback on MDA benefits. It also discusses efforts in diversity, equity, and inclusion, along with successful advocacy initiatives influencing oral health in Michigan.

Procurement Management In Agricultural Commodity Processing, Onur Boyabatli, Bin Li

Research Collection Lee Kong Chian School Of Business

This chapter provides insights on the optimal procurement decisions of a commodity processing firm that sources a primary input from a quantity flexibility contract (which is characterized by a unit reservation price and a unit exercise price), to produce two outputs in fixed proportions. The firm faces uncertainties in input spot price and output demands. Our objective is twofold. First, in a single-contract setting, we investigate the role of demand correlation in the presence of fixed proportions technology and show that the firm benefits from a higher demand correlation. Second, we investigate the firm’s optimal contract selection strategy between the …

A Constraint Programming Approach To Load Capacity Planning In Container Vessels, Byung Kwon Lee, Joyce M. W. Low

Research Collection Lee Kong Chian School Of Business

A container vessel carries containers of various characteristics, in terms of size, weight, and contents. The cargo load of a container vessel, being subjected to a set of operational conditions and restrictions regarding ship stability and safety, is a fundamental element in decision-making when a shipping line provides logistics services to clients. This study presents a constraint programming-based model for the capacity planning of a container vessel under various operational conditions. The proposed model generates base solutions and is complemented with a rich scenario-based analysis that utilizes real-life ship data of a container vessel operated by a liner shipping company …

Unveiling The Impact Of Covid-19 And The Policy Implications On Indonesian Small Businesses: Where Do They Hurt The Most?, Sri Wahyuni, Novita Ikasari

BISNIS & BIROKRASI: Jurnal Ilmu Administrasi dan Organisasi

The catastrophic impact of COVID-19 Pandemic on micro, small and medium enterprises (MSMEs) is well-presented across countries featured on a helicopter view. However, studies on business activities as proxies to business functions that are exclusively affected by the pandemic are scarcely found, which in turn might cause ineffective recovery policy. Using Indonesia as a case in point, this study aims at codifying the particular business activities to proxy the functions that have been impacted across the sectors and business owners’ perception on the government’s policy. The study uses indicators for three business functions that are qualitatively constructed from previous studies …