Operations and Supply Chain Management Commons^™

The Evolving Relationship Between Airline Profitability And Passenger Satisfaction, Kent N. Gourdin

Journal of Transportation Management

This paper examines the ongoing evolution of the U.S. airline industry under deregulation. After losing money for most of the past 35 years, carriers have made structural changes to their business models that have proven to be, at least in the short term, very profitable. After delineating these management actions, the paper examines their impact on passengers. The author utilizes the Service Quality Model to analyze the long-term implications of this new operating paradigm for passenger satisfaction. Based on this analysis the paper goes on to suggest several actions management could take to improve satisfaction. Finally, conclusions are offered and …

U.S. Motor Carrier Hours Of Service Regulations: Their Impact On Carrier Profitability And Productivity, Ahren Johnston

Journal of Transportation Management

This paper discusses the history of hours of service regulations for U.S. motor carriers and investigates the changes to individual carrier profitability and productivity from the last major change to those regulations in 2003. The results of the analysis indicate that operating ratio worsened and sales per employee improved, and return on assets and return on equity were unchanged due to hours of service changes. The implications of these results given the recent changes to hours of service regulations in 2011 are also discussed.

An Empirical Cross Cultural Assessment Of A Logistics/Supply Chain Management Typology, Michael A. Mcginnis, Ali Kara, John E. Spillan

Journal of Transportation Management

This manuscript compares the three dimensions (Process Strategy, Market Strategy, and Information Strategy) of the Bowersox Daugherty (1987) logistics strategy typology among five disparate countries by integrating the findings of previous empirical research. The appropriateness of the three Bowersox/Daugherty dimensions when combined into the construct Overall Logistic Strategy (OLS) are assessed. The role of OLS impact on Organizational Competitiveness (COMP) through two intervening variables LCE (Logistics Coordination Effectiveness) and CSC (Customer Service Commitment) is evaluated. The findings indicate that OLS is an appropriate descriptor of logistics/ supply chain management in a wide range of cultures and that the integration of …

A Simulation Approach To Airline Cost Benefit Analysis, Massoud Bazargan, David Lange, Luyen Tran, Zhiyuan Zhou

Management, Marketing and Operations - Daytona Beach

In this paper we conduct a cost benefit analyses using simulation for an Airline. This study pertains to using Towbarless Towing Vehicles (commonly referred to as supertugs) to transport aircraft to and from the terminal to airline’s maintenance hangar facility at their hub. This study attempts to investigate the possibility of reducing costs through saving jet fuel by adopting supertugs and identify if their high purchasing costs are justified. This study adopts simulation to analyze the annual savings by studying the numbers needed, as well as the utilization and operation cost for these supertugs. The results are very encouraging, enabling …

Decision Support For Lead Time And Demand Variability Reduction, Xin Fang, Cheng Zhang, David J. Robb, Joseph D. Blackburn

Research Collection Lee Kong Chian School Of Business

Companies undertaking operations improvement in supply chains face many alternatives. This work seeks to assist practitioners to prioritize improvement actions by developing analytical expressions for the marginal values of three parameters – (i) lead time mean, (ii) lead time variance, and (iii) demand variance – which measure the marginal cost of an incremental change in a parameter. The relative effectiveness of reducing lead time mean versus lead time variance is captured by the ratio of the marginal value of lead time mean to that of lead time variance. We find that this ratio strongly depends on whether the lead time …

Activity-Based Calculation Models For The Brazilian Air Force Cellular Unit Of Intendancy, Paula Ferreira Da Silva

Theses and Dissertations

During a military operation, besides providing technological infrastructure and specific weapons, it is also essential to have physical logistics to support the basic needs of troops. To provide this specific care, the Brazilian Air Force (BAF) has the Cellular Unit of Intendancy (CUI). Annually several support operations are planned, and events that cannot be predicted are estimated. Currently, the estimated budget and the report of total costs calculated after missions do not reflect the reality of the CUI expenses. The estimated budget presents values much lower than those presented in the reports of total costs, prepared after finishing each support …

Identifying, Tracking, And Prioritizing Parts Unavailability, Troy T. Huber

Theses and Dissertations

The Air Force is pursuing several efficiency initiatives designed to reduce support function costs. One such initiative is an effort to reduce the flow days of items being repaired in the Air Force's organic depots. Many end items are affected by awaiting parts (AWP) delays, which increase total flow days. The first step in reducing AWP delays is to identify which piece parts are causing the delays. A gap analysis was conducted to identify a process for creating a list of piece parts that are causing AWP delays. In addition, a clinimetric method was used to develop an aggregate measure …

Usaf Aircraft Maintenance Officer Knowledge, Skills And Abilities And Commonalities Among The Logistics Officer Corps, David M. Thompson

Theses and Dissertations

This study investigated options to improve 21A training and education by first validating the Air Force's logistics mission sets as Deployment, Distribution, Supply Management, Repair Network Integration, Mission Generation, Lifecycle Logistics and Joint Logistics. Then, the Knowledge, Skills, and Abilities (KSAs) considered important to execute each mission set were gathered from a representative sample of Air Force Logistics Officers via field interviews and focus groups. An analysis of results categorizes probable needs (high, medium, low) of KSAs for each mission set and assesses how well they are currently taught, if at all. Additionally, lists of KSAs that overlap multiple mission …

Vehicle Minimization For The Multimodal Pickup And Delivery Problem With Time Windows, Benjamin A . Clapp

Theses and Dissertations

The algorithm proposed here is used for heuristic solutions for the Multimodal Multiple Vehicle Routing Problem with Unloading Capacity, Pickup and Dropoff, and Time Windows, solved so as to minimize the number of vehicles used, subject to varying objective function values for each vehicle. The MVRP is simplified and split into a routing problem and a scheduling problem. The routing problem is addressed by Dijkstra's Algorithm. This generates a new network for the second stage of the algorithm. It is assumed that the shortest path is the correct path to use, and shipments each travel unimodally. The scheduling problem is …

Strategic Consolidation Of Medical War Reserve Material (Wrm) Equipment Unit Type Codes (Utc) Assemblages, Chad W. Whitson

Theses and Dissertations

This thesis analyzes the strategic consolidation of medical WRM equipment UTC assemblages located within the contiguous United States. Following a 2003 consolidation assessment, the Air Force Medical Logistics Office (AFMLO) consolidated some of the medical UTCs at three Consolidated WRM Storage and Deployment Centers (CSDC) located at Kelly Field Annex, Travis AFB, and Charleston AFB. While many UTCs were consolidated at that time, currently only 17 of the possible 142 equipment UTC assemblages are entirely consolidated at one of those three locations. After adding three additional bases as possible consolidation locations, this study attempts to minimize the cost of full …

Tls Newsletter Volume 7, Edition 6. March, 2013, Unf Transportation And Logistics Society

Transportation & Logistics Society Newsletter

Inside the Newsletter: TLS Meeting Wednesday April 3rd. TLS President's Corner. Upcoming Events. TLS Community. CTL Certification: What you need to know before you graduate. Get to know TLS Social Director Grant Walker. TLS on Tour--Big Sea Day at Jaxport. Life after Graduation with Jon Stutsman.

Artisan® Romaine Proof Of Concept: Impact Of Packaging Materials On The Shelf Life Of Romaine Lettuce, John Pessagno

Industrial Technology and Packaging

The purpose of this project is a proof of theory that analyzes different packaging materials, substrates, and package designs to analyze the effects they have on romaine lettuce. Analysis was performed on materials including bulrush, PET, PS, PE-PP shrink film, and a specially engineered film from Dow Chemicals. There are two rounds of testing that dive into the impacts of headspace, moisture content, and distribution on sensory analysis from a six-person panel.

It was shown that the packaging materials used had a strong impact on shelf life and the sensory qualities of the romaine lettuce. Even though the trays that …

Institutional Voids: Black Hole Or Opportunities?, Singapore Management University

Perspectives@SMU

Emerging markets and their institutional voids offer great growth potential for corporates and organisations seeking an exit strategy from the gloomy European market, says Harvard professor Tarun Khanna. ‘Institutional voids’, a phrase coined by Khanna in his book "Winning in Emerging Markets, refers to the absence of intermediaries like market research firms and credit card systems to efficiently connect buyers and sellers. This creates daunting obstacles for companies trying to operate in emerging markets. According to Khanna, understanding these voids – and learning how to work with them in specific markets – is the key to success

Welfare Issues With Gestation Crates For Pregnant Sows

Agribusiness Reports

Throughout nearly the entirety of their 112-115 day pregnancies, most breeding sows in the United States are confined in gestation crates (also known as sow stalls)—individual metal enclosures so restrictive that the pigs cannot turn around. Crated sows suffer a number of significant welfare problems, including elevated risk of urinary tract infections, weakened bones, overgrown hooves, lameness, behavioral restriction, and stereotypies. Due to concerns for the welfare of intensively confined sows, legislative, industry, and corporate policies are increasingly phasing out the use of gestation crates.

Tls Newsletter Volume 7, Edition 5. February, 2013, Unf Transportation And Logistics Society

Transportation & Logistics Society Newsletter

Inside the Newsletter: TLS Presdient's Corner Brandon Little. TLS Meeting--Harness the power of a professional network, Wednesday, February 20th. Upcoming Events. Launching a Successful Career in Logistics--The Journey Starts at UNF. Get to Know Mark Smill. TLS On Tour--Vistakon Henry Schein Distribution Center. Life after graduation with Paula Nelson.

Step By Step: The Benefits Of Stage-Based R&D Licensing Contracts, Pascale Crama, Bert De Reyck, Zeger Degraeve

Research Collection Lee Kong Chian School Of Business

We examine how a licensor can optimally design licensing contracts for multi-phase R&D projects when he does not know the licensee’s project valuation, leading to adverse selection, and cannot enforce the licensee’s effort level, resulting in moral hazard. We focus on the effect of the phased nature typical of such projects, and compare single-phase and multi-phase contracts. We determine the optimal values for the upfront payment, milestone payments and royalties, and the optimal timing for outlicensing. Including multiple milestones and accompanying payments can be an effective way of discriminating between licensees holding different valuations, without having to manipulate the royalty …

Flooring And Driving Conditions During Road Transport Influence The Behavioural Expression Of Cattle, Catherine A. Stockman, Teresa Collins, Anne L. Barnes, David Miller, Sarah L. Wickham, David T. Beatty, Dominique Blache, Françoise Wemelsfelder, Patricia A. Fleming

Sentience Collection

This study examined whether observers could distinguish between cattle that were exposed to various road transport conditions: Experiment 1 compared a manipulated flooring treatment (non-grip flooring, NG) with a control transport event (grip flooring, G) and Experiment 2 compared a manipulated driving style (stop-start driving, SS) with a control transport event of smooth, continuous (C) driving. The behavioural expression of cattle was assessed through the process of Qualitative Behavioural Assessment (QBA), and these assessments were tested for correlation with various physiological parameters. Fourteen Angus steers were assessed. Blood samples were collected immediately before and after transport, and heart rate and …

A Review Of Radio Frequency Identification Technologies And Impacts On The Hospital Supply Chain: 2002–2012, Alberto Coustasse, Shane Tomblin, Chelsea Slack

Management Faculty Research

Supply costs are the second largest expenditure in hospitals, accounting for more than one third of the average operating budget. RFID technology can reduce these costs, improve patient safety, and supply chain management by increasing the ability to track and locate equipment, as well as monitoring theft prevention, distribution management, and patient billing. Findings of this study have shown that the application of RFID on medical equipment and supplies have resulted in efficiency increase in healthcare with lower costs and increased quality services. Even though the cost of RFID implementation is decreasing, the total expenditures are still significant and the …

Isscm Graduating Cohort, 2013, Raj Soin College Of Business, Wright State University

ISSCM Master Cohort Posters

Poster congratulating the 2013 Graduating Cohort from the Master of Information Systems and the Master of Science in Logistics and Supply Chain Management Programs.

Where Next For Supply Chain Management?, Des Lee

Books/Book chapters

Supply chain management (SCM) has been so successful that it is largely taken for granted. Its success has been built on improving three key flows – of product, of money and of information – and on one core principle – core competence. What next for SCM? This article outlines the vulnerabilities that are embedded in modern supply chains and the unintended consequences of outsourcing activities that are not core competences. These consequences are global and have the potential to undermine past achievements. Finally, broad suggestions are made as to how these issues can be addressed and the areas on which …