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Bayesian Methods In Economics And Finance: Editor's Introduction, Jun Yu

Research Collection School Of Economics

Modern days, Bayesian methods have gained prominence in theoretical work and applications in economics and finance due to the rapid development of computational technologies and their ability to learn. The special issue intends to examine central aspects in Bayesian analysis and applications, including prior choices, model selection with massive data and latent variables, hypothesis testing, Bayesian learning. In total, this special issue contains ten papers, all subject to the Journal of Econometrics (JOE)’s normal refereeing process. Most of these papers came from a conference held at the ESSEC Singapore campus on 10 December 2018.

Smart Charging Of Electric Vehicle: An Innovative Business Model For Utility Firms, Owen Wu, Safak Yucel, Yangfang (Helen) Zhou

Research Collection Lee Kong Chian School Of Business

Problem Definition: By providing an environmentally friendly alternative to traditional vehicles, electric vehicles will transform urban mobility, particularly in smart cities. In practice, once an electric vehicle is plugged in, the charging station completes charging as soon as possible. Given that the procurement cost of electricity and associated emissions vary significantly during a day, substantial savings can be achieved by smart charging—delaying charging until the cost is lower. In this paper, we study smart charging as an innovative business model for utility firms. Practical Relevance: Utility firms are already investing in charging stations and they can achieve significant cost savings …

Celebrating Our Exceptional Faculty At Fall Convocation, September 01, 2022, Tisa Mason Ed.D.

Heart of a Tiger Columns

No abstract provided.

Charging Drivers By The Gallon Vs. The Mile: An Equity Analysis By Geography And Income In California, Samuel Speroni, Asha Weinstein Agrawal, Michael Manville, Brian D. Taylor

Mineta Transportation Institute

This study used data from the 2017 National Household Travel Survey California Add-On sample to explore how replacing the current state vehicle fuel tax with a flat-per-mile-rate road-user charge (RUC) would affect costs for different kinds of households. We first estimated how household vehicle fuel efficiency, mileage, and fuel tax expenditures vary by geography (rural vs. urban) and by income. These findings were then used to estimate how much different types of households pay in the current per-gallon state fuel tax, what they would pay if the state were to replace fuel taxes with a flat-rate road-usage charge (RUC) that …

Assessing The Leverage Of Islamist Groups And Opposition Parties Alliance In Indonesia’S Regional Electoral Contest, Ari Ganjar Herdiansah, Arie Surya Gutama, Widya Setiabudi Sumadinata

Jurnal Politik

This article tempts to verify the intricate dynamics of political alliances between Islamist groups and opposition parties in Indonesian elections, focusing on the 2018 West Java gubernatorial contest. The study employs exit poll data, investigating the relationship between religiosity, politico-religious narratives, and voting behaviour. While the mobilising power of Islamist groups appeals to political parties, creating a temporary alliance, these do not guarantee electoral triumph even in a conservative region. The politico-religious propaganda, in principle, consolidates Islamist-inclined voters. Despite high levels of religiosity among voters, the alliance's strategies fail to convey this religious mobilisation into broad electoral success. This underscores …

Overnight Returns, Daytime Reversals, And Future Stock Returns, Ferhat Akbas, Ekkehart Boehmer, Chao Jiang, Paul D. Koch

Research Collection Lee Kong Chian School Of Business

A higher frequency of positive overnight returns followed by negative trading day reversals during a month suggests a more intense daily tug of war between opposing investor clienteles, who are likely composed of noise traders overnight and arbitrageurs during the day. We show that a more intense daily tug of war predicts higher future returns in the cross section. Additional tests support the conclusion that, in a more intense tug of war, daytime arbitrageurs are more likely to discount the possibility that positive news arrives overnight and thus overcorrect the persistent upward overnight price pressure.

Attraction Versus Competition: A Tale Of Two Similarity Effects In Director Selection Of Chinese Firms, Gao Renfei, Helen Hu, Toru Yoshikawa

Research Collection Lee Kong Chian School Of Business

Extant research has focused primarily on the collaborative side of chair-director similarity in director selection, whereas the potential competitive side remains underexplored. Emphasizing the dual role of directors as both collaborators and competitors, as perceived by chairs, we incorporate both the similarity-attraction logic and the similarity-competition logic in director selection and develop a collaborative-competitive framework to reconcile the tension between them. Based on new director selection data from Chinese listed firms, we find that chair-director similarity in the competitive-oriented political background is negatively related to the likelihood of the director being selected—consistent with the similarity-competition logic, whereas chair-director similarity in …

Experiential Learning: The Case Of Training Mba Students In An Asian School, Chiyachantana N. Chiraphol, Kuan Yong David Ding, Jack Jiajun Hong

Research Collection Lee Kong Chian School Of Business

Consulting for a startup company is an effective way for Master of Business Administration (MBA) students to learn about management consulting, and the ways and means of a startup company. This paper discusses the experience of an MBA startup project within the context of a core corporate finance course. The project requires the active engagement of several groups of stakeholders—MBA students, the university’s entrepreneurship incubator, a selection of startup companies, and the project’s academic collaborators. In line with the literature, we find that entrepreneurship education through student-startup collaboration contributes to the students’ entrepreneurial learning, and that the offering of an …

Out Of The Trap: Conversion Funnel Business Model, Customer Switching Costs, And Industry Profitability, Niloofar Abolfathi, Andrea Fosfuri, Simone Santamaria

Research Collection Lee Kong Chian School Of Business

Research Summary: Across many industries, firms employ a conversion funnel business model to attract customers with basic and affordable products, generate lock-in, and then sell them more advanced and expensive products. We argue that this business model, coupled with high customer switching costs, results in a market outcome characterized by aggressive pricing and reduced profits. A sudden reduction in customer switching costs disrupts the conversion funnel and can eventually increase industrywide prices and profitability, an outcome that contradicts conventional wisdom in strategy research. We develop a stylized model to formalize our ideas and provide supportive evidence using a difference-in-differences methodology …

Twilytics: A Social Perception Analysis Of Public Transit Systems During The Covid-19 Pandemic, Egbe-Etu Etu, Imokhai Tenebe, Ankur Parma, Likhitha Yelamanchili, Dang Minh Nhu Nguyen, Louis Tran, Ihor Markevych

Mineta Transportation Institute

In the United States, public transit ridership in 2020 declined by 79% compared to 2019 levels. With lockdowns implemented during the early days of the pandemic, direct human-to-human interactions migrated to virtual platforms (e.g., Facebook, Twitter, and Reddit). Social media platforms have aided researchers in answering numerous questions about current societal dilemmas, including COVID-19. This study investigates the public’s perception of transit systems via a social media analysis given the emergence of vaccines and other COVID-19 preventive measures. Findings revealed themes of fear and confusion concerning the use of public transportation during the pandemic. The public had doubts regarding the …

Damage Detection And Damage Localization In Bridges With Low-Density Instrumentations Using The Wave-Method: Application To A Shake-Table Tested Bridge, Mehran Rahmani, Xintong Ji, Sovann Reach Kiet

Mineta Transportation Institute

This study presents a major development to the wave method, a methodology used for structural identification and monitoring. The research team tested the method for use in structural damage detection and damage localization in bridges, the latter being a challenging task. The main goal was to assess capability of the improved method by applying it to a shake-table-tested prototype bridge with sparse instrumentation. The bridge was a 4-span reinforced concrete structure comprising two columns at each bent (6 columns total) and a flat slab. It was tested to failure using seven biaxial excitations at its base. Availability of a robust …

A Qualitative Study Exploring The Lived Experiences Of Teachers Of Color In Predominately White K–12 Environments, Torine S. Champion

Electronic Theses and Dissertations

The purpose of this qualitative study was to describe the lived experiences of teachers of color and identify commonalities within the lived experiences of teachers of color employed in predominately White K–12 schools. This study utilized interpretive phenomenological analysis as viewed through the White racial frame lens. There were 15 participants that were included in this research study. Participants were teachers of color with at least 5 years of teaching experience in predominately White K–12 environments. Data collection procedures included confidential virtual, semistructured interviews that included specific information the researcher wanted to explore. Six themes were revealed: (a) cultural advocacy, …

Burn On, Don't Burn Out: Factors That Promote Longevity In Ministry, Gary William Simpson

Electronic Theses and Dissertations

Abstract

Scientific literature in the social sciences is rife with studies on burnout and how this phenomenon affects those in various occupations, especially the helping professions. Clergy members are not immune to the influence and effects of burnout. The rate at which clergy members are affected by burnout is evidenced in the documented shortage of clergy currently serving churches and the paucity of ministers going into ministry. The purpose of this study was not to reiterate the effects of burnout on clergy members, but to discover and to explore those factors which promote longevity in ministry. This study used an …

Principal Decision-Making And Perception Of Fine Arts Programing In Curricular Design, Osvaldo Altamirano

Electronic Theses and Dissertations

This qualitative study included an exploration of the concept of perception affecting decision- making in curriculum design and the support of school administrators toward fine art programs in West Texas School Regions 18 and 19. Research shows that the fine arts provide students the social and creative skills to become productive citizens. However, research shows that in the current realm of urban and rural public school curricula, the fine arts exist at either a limited capacity or are nonexistent. This dissertation included an attempt to answer how a school leader's fine arts perception affects a principal's ability to support, build, …

The Confidence Gap: How The Self-Esteem Of Middle School Females Affects Their Leadership Self-Efficacy, Amanda F. Bitner

Electronic Theses and Dissertations

Though studies suggest social-emotional learning (SEL) programs have a positive impact on youth development, the focus, implementation, and consensus on SEL programs vary. These programs largely overlook adolescent self-esteem, which is at its lowest during the formative middle school years and twice as likely to be lower among females than males. This study attempted to understand whether SEL education impacts middle school females' self-esteem and leadership and whether their self-esteem and leadership self-efficacy correlate. Key research questions explored middle school females’ self-perception of their self-esteem and leadership self-efficacy levels. This quantitative descriptive study aimed to examine whether there was a …

Congestive Heart Failure And Sepsis: A Retrospective Study Of Hospitalization Outcomes From A Rural Hospital In Southwest Missouri, Alexandra Skovran, Mason Hinke, Shelly N.B. Sloan, Greg Stahl, Kerry Johnson, Scott Goade, Robert Arnce

Faculty and Staff Publications

Background

Sepsis is the leading cause of death in hospitalized patients and significant effort has been made to facilitate early diagnosis and management. However, aggressive treatment can have negative effects, especially in patients with unstable volume status, such as those with congestive heart failure.

Methods

We used electronic medical records to perform a retrospective study looking at hospital outcomes in patients from Southwest Missouri who were admitted with sepsis and had a comorbid diagnosis of hypertensive heart failure. Our primary outcome was in-hospital mortality. Results We studied a total of 184 patients with the diagnosis of hypertensive heart failure with …

Kenyon Collegian - September 1, 2022

The Kenyon Collegian

No abstract provided.

Li-Ion Electrode Microstructure Evolution During Drying And Calendering, Mojdeh Nikpour, Baichuan Liu, Paul Minson, Zachary Hillman, Brian A. Mazzeo, Dean R. Wheeler

Faculty Publications

The drying process of electrodes might seem to be a simple operation, but it has profound effects on the microstructure. Some unexpected changes can happen depending on the drying conditions. In prior work, we developed the multiphase-smoothed-particle (MPSP) model, which predicted a relative increase in the carbon additive and binder adjacent to the current collector during drying. This motivated us to undertake the present experimental investigation of the relationship between the drying rate and microstructure and transport properties for a typical anode and cathode. Specifically, the drying rate was controlled by means of temperature for both an NMC532 cathode and …

Analog Matters: Labels, Cassettes, And Alternative Economies In Argentina’S Independent Music Scenes, Maria Agustina Checa

Dissertations, Theses, and Capstone Projects

This dissertation is a multi-sited ethnographic study of current cassette production and circulation in Argentina. It analyzes the work of independent labels that record music available online onto cassette tapes, incorporating a variety of music styles. I examine practices of production, circulation, and exchange, and the alternative economies performed around cassettes, with particular attention to the materialities constituting these processes. Through cassettes, I conceptualize and trace "relational value," a notion to understand objects with different kinds of social agencies valued for their abilities to generate connections. Relational value is a theoretical construct that emerges from the ground-up approach to studying …

Trust In Academia: How Chief Academic Officers Build And Maintain Faculty Trust, Marc A. Smithers

Electronic Theses and Dissertations

As the role of academic leadership has grown more complex, particularly as leaders are increasingly tasked with leading educational innovation initiatives, building faculty trust has become an essential task for chief academic officers (CAOs). Due to the general lack of research into this role, though, little is known about how they understand and approach building faculty trust. The purpose of this qualitative, single, holistic case study was to understand how executive academic administrators at private colleges approach building and maintaining trust with their faculty in general and also through educational innovation and what specific challenges they have identified in these …

A Study Of The Perceptions Of School Administrators On Fostering Relational Trust With Teachers In Texas Urban Charter Schools, Meesha-Gay Jones

Electronic Theses and Dissertations

Accountability has placed immense pressure on principals leading K-12 public charter schools to increase standards for success. Overwhelmingly, principals accept the charge to produce promising results every day, despite the public scrutiny principals may ensue for not meeting the state’s standard of excellence. Principals are expected to drive high academic standards, initiate instructional vision, interact with parents, oversee policy mandates, address students’ needs, and foster relationships with teachers. The daily demands requiring principals’ attention stimulate stress and may cause principals to wrestle with prioritizing trusted relationships. The purpose of this qualitative descriptive study was to understand how principals foster relational …

Largeea: Aligning Entities For Large-Scale Knowledge Graphs, Congcong Ge, Xiaoze Liu, Lu Chen, Yunjun Gao, Baihua Zheng

Research Collection School Of Computing and Information Systems

Entity alignment (EA) aims to find equivalent entities in different knowledge graphs (KGs). Current EA approaches suffer from scalability issues, limiting their usage in real-world EA scenarios. To tackle this challenge, we propose LargeEA to align entities between large-scale KGs. LargeEA consists of two channels, i.e., structure channel and name channel. For the structure channel, we present METIS-CPS, a memory-saving mini-batch generation strategy, to partition large KGs into smaller mini-batches. LargeEA, designed as a general tool, can adopt any existing EA approach to learn entities’ structural features within each mini-batch independently. For the name channel, we first introduce NFF, a …

Automatic Fairness Testing Of Neural Classifiers Through Adversarial Sampling, Peixin Zhang, Jingyi Wang, Jun Sun, Xinyu Wang, Guoliang Dong, Xinggen Wang, Ting Dai, Jinsong Dong

Research Collection School Of Computing and Information Systems

Although deep learning has demonstrated astonishing performance in many applications, there are still concerns about its dependability. One desirable property of deep learning applications with societal impact is fairness (i.e., non-discrimination). Unfortunately, discrimination might be intrinsically embedded into the models due to the discrimination in the training data. As a countermeasure, fairness testing systemically identifies discriminatory samples, which can be used to retrain the model and improve the model’s fairness. Existing fairness testing approaches however have two major limitations. Firstly, they only work well on traditional machine learning models and have poor performance (e.g., effectiveness and efficiency) on deep learning …

Does Social Media Accelerate Product Recalls? Evidence From The Pharmaceutical Industry, Yang Gao, Wenjing Duan, Huaxia Rui

Research Collection School Of Computing and Information Systems

Social media has become a vital platform for voicing product-related experiences that may not only reveal product defects but also impose pressure on firms to act more promptly than before. This study scrutinizes the rarely-studied relationship between these voices and the speed of product recalls in the context of the pharmaceutical industry where social media pharmacovigilance is becoming increasingly important for the detection of drug safety signals. Using Federal Drug Administration (FDA) drug enforcement reports and social media data crawled from online forums and Twitter, we investigate whether social media can accelerate the product recall process in the context of …

Dean’S Report: Detroit Mercy Dental Evolving With Purpose, Value, And Pride: A Look At The Past Year And All The People Who Made It Happen, Mert N. Aksu Dds, Jd, Mhsa, Cert. Dph

The Journal of the Michigan Dental Association

In the past year, the University of Detroit Mercy School of Dentistry has continued its commitment to evidence-based clinical education, preparing ethical and culturally sensitive graduates for dental practice. Changes brought on by the pandemic have become part of the new normal, with the introduction of the HyFlex classroom format, allowing students flexibility in attending classes in person, virtually, or through recorded lectures. Clinic time and sessions have been consolidated to provide more focused patient care, with students now spending 28-30 hours per week on direct patient care. The University Health Center (UHC) clinic, which served as a significant teaching …

Dentistry And The Law: Understanding The Dental Plan Audit Process, Dan Schulte Jd

The Journal of the Michigan Dental Association

Dental plan audits, which can result in demands for fee repayments, often focus on recordkeeping deficiencies rather than the quality of dental services. Dentists should be aware of key points regarding these audits, including the timing, the nature of audit findings, and the lack of immunity from prior authorizations. Dentists should also request clarification when the audit results are unclear and seek explanations for alleged deficiencies. The audit process may lack a comprehensive explanation, suggesting that the primary goal for dental plans is financial recovery rather than the correction of errors or documentation improvement.

Female Fertility Preservation: Current & Future Strategies, Nouran Sallam, Reda Hemida

Mansoura Medical Journal

Recently, the spectacular progress in diagnosis, treatment, and prognosis of different malignancies has increased the demands on fertility preservation. Fertility impairment is considered one of the complications of radio/cytotoxic treatments in females who managed to overcome their cancer. This issue of fertility preservation also concerns those who are at risk of developing ovarian failure as well as healthy individuals who aim to overcome age-related fertility decline. Regarding female fertility preservation, there are various options that could be selected according to various factors, including the patient’s age, type of the disease, as well as type and urgency of treatment. Among these …

Invasive Fungal Sinusitis Associated With Covid-19, Ali Elzar, Ahmed Eldeeb, Heba Aldegla

Mansoura Medical Journal

According to WHO Coronavirus (COVID-19) Dashboard, as of 11th February 2022, there have been 404,910,528 confirmed cases of COVID-19, includ-ing 5,783,776 deaths. Coronavirus-2 (SARS-CoV-2) is the causative agent. It is caused by coronavirus-2 (SARS-CoV-2), the disease may cause acute respiratory dis-tress syndrome (ARDS), that increases the susceptibility of co-infections with fungi. Acute invasive fungal sinusitis (AIFS) is a severe infection mostly affecting immune-compromised patients and carries high risk of mortality. COVID-19 patients admitted to the ICU have risk factors for AIFS, mainly chronic diseases of the respiratory tract, treatment with corticosteroid, intubation/mechanical ventilation, and cytokine storm. Aspergillus and Mucorales are …

The Value Of D-Dimer Blood Concentrations In Prediction Of Presence Of Left Atrial Thrombus In Patients With Non-Valvular Atrial Fibrillation, Ahmed Bedier, Sally Teima, Abdallah Elshal

Mansoura Medical Journal

Background: Atrial fibrillation (AF) is the most typical sustained cardiac disturbance all over the world, it increases the risk of left atrial (LA) thrombus, Plasma fibrin D-dimers seems to be a helpful parameter for assessing the degrees of hypercoagulability. Higher risk of recurrent ischemic stroke was found to be associated with baseline elevated D-dimers levels. Aim: To assess the value of D-Dimer examination in prediction of presence of LA thrombus in patients with AF instead of transesophageal echocardiography (TEE) examination. Patients and Methods: Analytical cross-sectional study was conducted. It included 250 patients divided according to presence of LA thrombus into …

Chordoid Meningioma: Clinical, Hsitopathological And Radiological Study, Mohamed Elsherbini, M Elhawary, Khadega Ali, Ali Elmokadem, Amr Khalil, Mohammad Elshirbiny

Mansoura Medical Journal

Background: The purpose of this study is to discuss the clinical, radiological and histopathological features of a rare grade 2 variant of meningioma which is the most common primary intracranial tumor. Patients and methods: A retrospective analysis of the data of 6 patients who underwent surgery for a histopathologically proven chodroid meningioma. Results: Six patients’ pathology reports showed chordoid meningioma. On imaging, four lesions (67%) were isointense in T1 while the other two were hypointense. On T2 weighted images, four patients were hyperintense (67%) and displayed non-restricted diffusion pattern with elevated values on corresponding apparent diffusion coefficient maps. Pathologically, chordoid …