Digital Commons Network^™

Essays On High-Frequency Dynamics Of Asset Prices, Yuhong Zhu

Dissertations and Theses Collection (Open Access)

This dissertation studies econometric inference for high-frequency financial data, with a focus on detecting nonstandard drift and volatility dynamics in continuous-time models.

The first chapter proposes a new framework for uniform inference on explosive drift in high-frequency data, where conventional Gaussian approximations can fail due to the non-Gaussian behavior of short-window spot statistics. Under fixed-window asymptotics, these statistics are coupled with dependent t variables, and their maximum converges to a Fréchet distribution. We establish an anti-clustering condition for dependent t-statistics under overlapping windows and develop a feasible coupling-based test. Simulation results demonstrate better size control, and the empirical findings suggest …

Technological Strategy Paths, Dynamic Capability And Innovation Performance In Complex Product Industries: A Mechanism Study Based On China’S New Energy Vehicle Industry, Fan Zhang

Dissertations and Theses Collection (Open Access)

In recent years, the new energy vehicle (NEV) industry has developed rapidly, moving from electrification toward an intelligent phase characterized by software-defined vehicles. NEV firms pursue product and technological innovation through diverse strategic paths, including internal research and development, collaborative development, and platform-based development, yet their innovation performance varies. Most extant research focuses on the industry level, offering limited insight into how, at the firm level, different technological paths shape the innovation outcomes through firms’ dynamic capabilities. It still remains unclear whether and how these relationships among paths, capabilities, and innovation outcomes differ across technological domains.

This study adopts a …

The Seller Valuation Of Family Firm Exits: Socioemotional Wealth And Ceo Equity Ownership, Masahiro Nishii

Dissertations and Theses Collection (Open Access)

This study examines seller valuation in family-firm exit using the initial asking price from private M&A sales. In the sale of a family firm, it is known that seller valuation may go beyond financial value alone because owners often hold strong emotional attachments to the firm. However, it remains unclear whose judgment brings that non financial value into seller valuation and why this varies across types of family CEOs.

Drawing on socioemotional wealth theory, the study develops the mechanism at the CEO level. I argue that the anticipated SEW loss translates into seller valuation through the CEO’s judgment. When the …

From Catching Up To Surpassing—A Multi-Case Study Of Chinese Latecomer Technology Firms, Baohua Chen

Dissertations and Theses Collection (Open Access)

In recent years, a number of Chinese latecomer technology firms have grown rapidly and, in some cases, have even moved into leading positions in global competition. As global competition is being reshaped, technologies are evolving more rapidly, and traditional catch-up paths are becoming less viable, how these Chinese latecomer technology firms catch up with leading incumbents has become an important issue in strategic management research. Drawing on the theoretical lens of asymmetrical competition, resource orchestration, and dynamic capabilities, this study adopts an Eisenhardt-style multiple-case design to conduct a longitudinal comparative analysis of six firms—Insta360, Dreame, DJI, Unitree, Transsion, and Royole—and …

Essays On Money Search Models, Fangfang Gong

Dissertations and Theses Collection (Open Access)

This dissertation comprises three papers that use money search models to revisit the distributional welfare costs of inflation, study the optimal design of a central bank digital currency (CBDC), and investigate the role of liquidity and monetary policy in initial investment and capital reallocation in secondary markets.

The second chapter develops a micro-founded general equilibrium model of payments to revisit the distributional welfare costs of inflation. We consider different cost structures incurred by merchants when accepting cash and deposits. In equilibrium, there exists a cutoff for buyers’ money holdings, above which card payments are accepted by merchants. We calibrate the …

Uncertainty, Information, And Major Choice: Evidence From Chinese Gaokao, Sikun Dou

Dissertations and Theses Collection (Open Access)

An unresolved background risk makes people more averse to other, independent  risks—most of all when a high-stakes, irreversible choice must be made under that risk. College major choice is such a setting. In China, students are admitted directly into a major they cannot easily change, and in the early 2000s they had to commit before learning their exam scores, bearing a field’s academic risk on top of an unresolved admission risk. Because STEM fields carry more academic risk and women are on average more risk-averse, this burden falls hardest on women’s entry into STEM. Exploiting a reform that moved application …

Metabolic And Replicative Constraints On Pathogen Virulence: Isoleucine Catabolism In Shigella And Comparative Tanapoxvirus Replication In Cell Cultures, Benecia Angelica

Masters Theses

Pathogens survive by balancing metabolic demands with environmental challenges that shape their virulence and adaptability. Shigella flexneri, a highly infectious human pathogen responsible for severe diarrheal disease worldwide, utilizes branched-chain amino acid (BCAA) metabolism to withstand stress conditions encountered within the host environment. In this study, we explored the Shigella isoleucine catabolism pathway by knocking out four genes in the S. flexneri isoleucine catabolic pathway (ilvE, fadA, fadD, and acnB) and examining their metabolism and virulence. We found that the ilvE and acnB mutants displayed reduced metabolic activity and smaller plaque size, while the fadD mutant showed decreased invasion. In …

Extremum Seeking Compensation And Quantification Of Position Sensor Offset Error In Speed-Controlled Permanent Magnet Synchronous Motors, Tessa Biondo

Masters Theses

Position sensor offset errors present a persistent challenge in speed-controlled permanent magnet synchronous motor drives operating under field-oriented control. Even small, constant offsets in the measured rotor position can reduce torque effectiveness, requiring increased current and voltage demand to maintain the commanded speed and resulting in degraded speed regulation performance across a range of operating conditions. These effects are particularly problematic in speed-controlled systems, where speed loop dynamics cause increased electrical effort and limit overall performance. Many existing detection and compensation approaches are either dependent on the system model, require offline calibration, or are primarily designed for torque-controlled operation. This …

What Better Means: A Full-Length Album By Fake Baseball, Maggie Heeren

Masters Theses

No abstract provided.

Evaluating The Effects Of Multi-Functional Stations, Direct, And Motivational Messaging On Paper Cup Recycling, Madisyn Wynter Slater

Masters Theses

According to the Environmental Protection Agency (EPA), within Michigan alone, the municipal solid waste that has been collected in landfills contains approximately 31.5 million dollars in mixed paper and 18.8 million dollars in plastics (U.S. Environmental Protection Agency [EPA], 2016). One important aspect of recycling awareness is the impact that recycling has on the world. Whereas products like paper and plastic are accepted in recycling programs, any lined paper products (e.g., soda cups and to-go hot cups) are typically not accepted and therefore go to a landfill. Recent technology that can separate the lining from the paper, however, enables paper-lined …

Coloniality In Blue, Aaron Rosa

Masters Theses

This research explores Puerto Rican identity through a diasporic lens. I investigate thematic underpinnings of colonialism and sovereignty in Puerto Rico, focusing on the intersectionality of colonial history, gender, memory, objectification, identity fragmentation, cultural resilience, narrative reclamation, and the color blue through autobiographical anecdotes. The recounting of these stories is interpreted through a variety of materials linked to my relationship with their colonial histories.

Through these relationships, I have created sculptures that reflect the materials to which these bonds are linked. Through the reflection of 451 years of colonial rule, my goal is to interweave the symbology of these materials …

Transient Mitigation In Dual Active Bridge Converter Using An Auxiliary Converter With High-Frequency Selective Control For Load Step-Down Condition, Sachith Dilshan Wijesooriya

Masters Theses

Dual Active Bridge (DAB) converters are widely utilized in applications such as electric vehicles, renewable energy systems, and solid-state transformers due to their high efficiency, galvanic isolation, and bidirectional power transfer capability. However, during rapid load transitions, DAB converters frequently exhibit significant output voltage overshoot and prolonged settling times, which increase device stress and adversely affect system reliability. This thesis proposes an auxiliary-circuit-based transient mitigation method to address these limitations. The auxiliary circuit, implemented as a bidirectional Buck–Boost stage, operates in Boost mode during load step-down events to absorb excess energy and suppress the resulting voltage overshoot. The design of …

Increasing Accuracy Of Mapping Local Climatic Zones Using Building Height And Spectral Unmixing, Ian Douglas Stauffer

Masters Theses

Local climatic zone (LCZ) classifications are traditionally done using reflectance, population data, and often climatic data. The goal of this research is to utilize Google’s new “Open Buildings Temporal v1” building data set as well as “spectral unmixing”. With the objective of testing, assessing, and implementing this data set into the workflow of LCZ mapping. After testing the quality of the data against a validated LiDAR data set from the same year as a given “Open Buildings Temporal v1” band, I implemented it into the Random Forest machine learning process. Secondly, I justified the use of spectral unmixing as a …

Scholarship As A Means For Musical Performance: An Exploration Of Johannes Brahms Violin Sonata In G Major, Op. 78, Josh Zallar

Masters Theses

Developing a quality musical performance is a complicated and time-consuming endeavor. Endless hours are spent learning a musical instrument, developing technique, and growing into a mature sound. Learning the notes, rhythms, dynamics, and basic musical markings of a score compound this task, not to mention the preparation for performing by managing nerves, among other areas of concern. Amidst the undoubtedly enormous amount of work, however, often focus gets lost. Musicians forget that, despite the inherent fact that our inner voice is heard when we perform, that it is ultimately the composer whose voice and musical meaning must be conveyed in …

Changing Dynamics Of Microbial Communities At A Hydrocarbon Contaminated Site And Methanogenic Interactions With Iron Minerals, Jakob Sell

Masters Theses

Microbial life is not only ubiquitous but also plays a critical role in the geochemical makeup of our planet. While researchers have long studied easily culturable aerobic microbes, the influence of anaerobic life on soils and mineral cycling is less understood. Notably, knowledge about interactions between anaerobic microbes and inorganic elements such as iron has progressed with the discovery that magnetite influences how anaerobic archaea carry out methanogenesis. To better understand anaerobic bacterial metabolisms and how they interact with minerals and subsurface hydrocarbons, we extracted 16S rRNA genes from two adjacent subsurface petroleum plumes, sequenced the DNA, and analyzed it …

Haunted By A Cheap Ghost: Objects As Identity, Caitlin Zachow

Masters Theses

I am haunted by a cheap ghost, surrounded by inherited memories that are not my own, preserved in heirlooms that leave little room for me to create souvenirs of my own experience. In response, my practice centers on the personal significance of collections as outward expressions of identity, personality, and lived experience. Rooted in themes of Midwestern Americana, this exhibition presents narrative tableaus and curated collections that examine how personal identity is constructed through objects of memory, and display.

Informed by research into the history of kitsch, Sigmund Freud’s concept of the uncanny, and the “outmoded,” my work considers how …

Children’S Resilience After A Wildfire: Clinical Themes Of An Art Therapy-Based Curriculum, Rebecca Cuellar, Colter Engber, Gina Robinson, Chloe Seeger, Jenna Siteman, Charliemagne Tapia, Ethel Zafranco

LMU Theses and Dissertations

The present study explored the efficacy of an art therapy-based resilience curriculum for elementary school students in educational settings, whose communities have been impacted by the 2025 Eaton Canyon Wildfires. This art therapy-based curriculum aims to promote post-disaster recovery for early elementary students affected by wildfire-related stress by using a particular focus on traits of resilience. To measure the efficacy of this study, a mixed methods research approach was conducted to evaluate the curriculum’s impact in building resilience. The study uses early elementary student surveys using a Pre/post Emoji Survey, a modified Emoji Current Mood and Experience Scale (ECMES), teacher …

Quantifying Discard Mortality Of Undersized And Ovigerous Crabs In The Gulf Of Mexico Blue Crab Fishery, Micayla Cochran

Master's Theses

Blue crabs support a valuable commercial fishery in the Gulf of Mexico. Most states require the release of undersized and ovigerous blue crabs, yet mortality of these discarded crabs is an understudied component of total mortality. The first objective of this project was to quantify discard mortality of non-target crabs using bycatch surveys across the Lake Pontchartrain–Mississippi Sound coastal system. Ovigerous crabs were most common at high salinities and temperatures, whereas undersized crab presence was inversely correlated with soak time, temperature, and the number of crabs per trap, and also varied among geographic locations. A reflex action mortality prediction assessment …

Evaluating Modern Neural Network Architectures For Suicide Prediction, Kyle Brown

Master's Theses

Suicide remains a leading cause of death among adolescents despite more access to healthcare information than ever before. Medical professionals struggle to make accurate diagnoses and catch warning signs with the overwhelming amount of data available. Machine learning algorithms, including neural networks, have previously been employed for this task, yet it remains an understudied domain.

This research aims to evaluate the capabilities of Multi-Layer Perceptron (MLP) and a selection of its successors, ResNet and MLP with a category embedding layer, at the task of predicting suicidal ideation among high-school students. This research finds ResNet to be the most capable at …

Modeling The Effects Of Low-Pressure Atmospheric Fronts On Sediment Transport Through Mississippi Sound Barrier Island Inlets, Nicholas J. Gagliano

Master's Theses

Coastal sediment dynamics in the Mississippi Sound are strongly influenced by tropical cyclones and the more frequent passage of low-pressure atmospheric fronts. While hurricanes are well recognized for reshaping barrier islands and altering sediment budgets, the cumulative role of recurrent fronts remains poorly quantified. This thesis investigates the impacts of six low-pressure atmospheric fronts (2015–2017) on sediment flux through six barrier island inlets in the Mississippi Sound.

A high-resolution application of the Regional Ocean Modeling System with the Community Sediment Transport Modeling System was developed to simulate tidal circulation, wind-driven currents, and sediment dynamics. Waves were excluded from the simulations. …

Discerning Patterns Of Floral Sugar-Feeding: Dynamics Of The Mosquito Culex Antillummagnorum In Puerto Rico, Ella J. Branham

Master's Theses

Mosquitoes rely on sugar feeding for survival, primarily from flowering plants, yet mosquito–plant interactions remain understudied. I examined plant-feeding associations of the mosquito Culex antillummagnorum in the Luquillo Experimental Forest of Puerto Rico, which may clarify patterns of habitat use, disease dynamics, and broader species interactions. First, plant DNA was extracted from field-collected Cx. antillummagnorum to identify potential nectar sources. DNA barcoding produced positive matches to the flowering plant genera Billia, Aesculus, Cladium, Fimbristylis, Xyris, Cakile, and Habenaria. Habenaria was the most compelling result because it belongs to the same subtribe of orchids …

Redeveloping Mississippi: A Case Study On Brownfields In Central & Southern Mississippi, Sahrah R. Yeroozedek

Master's Theses

Brownfields, or properties that are or possibly are contaminated with dangerous materials, represent a common obstacle for communities in Mississippi. The real or potential presence of contaminants at these sites often deters investors due to costly cleanup requirements (EPA, n.d. -b). The Environmental Protection Agency (EPA), through its Brownfield Revitalization Program, implemented guidelines for covering the costs and labor associated with the remediation of these properties. The EPA is not, however, responsible for redevelopment that supports long-term environmental and economic sustainability. Although the EPA maintains inventories of all Brownfields, there is also no comprehensive database of Brownfields and their current …

A Unified Framework For Distributed And Resource-Aware Plant Disease Detection Using Federated And Adaptive Hybrid Deep Learning, Ticauris S. Stokes

Master's Theses

Plant disease detection in precision agriculture must operate under significant computational constraints, particularly in low-resource (LR) environments such as unmanned aerial vehicles (UAVs) and edge devices. While LR models enable efficient real-time inference, they often lack the representational capacity required to accurately detect complex disease patterns. In contrast, high-resource (HR) models achieve superior detection performance due to their deep architectures but are computationally expensive and unsuitable for direct deployment in resource-constrained settings. This fundamental trade-off between efficiency and accuracy presents a major challenge for practical agricultural monitoring systems.

To address the distributed nature of agricultural data, federated learning (FL) is …

Simulated Battles, Real Lessons: Analyzing The Impact Of The U.S. Navy’S Fleet Problems On Battle In The Pacific War, Jackson T. Volkert

Master's Theses

The historiography of the Pacific Theater of World War II is thorough in regard to its coverage of the war itself. The technology, doctrine, and personnel practices of both the Imperial Japanese Navy and the United States Navy are well understood by historians in the field. In addition to this, a less thorough but still healthy understanding exists as to how the belligerents in question adopted the methods and tactics they used on the battlefields of the Pacific. What currently exists in this field of study places more analytical emphasis on the cultural and strategic level impacts of the interwar …

"Ostracized As We Are With God": Mina Loy's Anti-Career And The Search For Originality, Peyton L. Phillips

Master's Theses

Among many modernist artists, Mina Loy remains one of the most complex and allusive. Recent posthumous exposure of Loy's life and work adds to this precarity. A significant piece of Loy's life that is especially complex to contemporaries is her time spent writing. By establishing Loy's subjective relationship with her Victorian upbringing, this paper seeks to show examples of its influence on her search for originality. Mainly, the paper examines Loy's concept of originality, where that concept may have come from, and how it is reflected in her literature. The paper analyzes three of Loy's literary works, her poems "Virgins …

The Impact Of Place-Based Education Professional Development On Faculty Identity And Perceptions Of Nature-Culture Dichotomies, Reyt Middleton

Master's Theses

This qualitative study analyzes how implementing place-based education (PBE) in undergraduate coursework shapes faculty identity narratives and nature–culture positionalities across conceptual lenses of past, present, and future. Three faculty members at a regional Mississippi university engaged in a PBE professional development program; narratively driven pre- and post-implementation interviews were given to participants, then examined via thematic analysis. Framed primarily through lenses of constructivism, with support from critical pedagogy of place, relational and ecological epistemologies, and scholarship on faculty identity, this study posits two research questions—1: How does teaching PBE influence faculty identity narratives across past, present, and future temporalities? 2: …

Volunteer Spotlighting: Costly Signaling To Promote Volunteerism, Clyde A. Raible V

Master's Theses

Prosocial behaviors, because they are initially costly and do not guarantee a direct benefit to the actor, can nonetheless increase social status by signaling a willingness to incur cost on behalf of another. Given this signal value, nonprofit organizations may be able to leverage this knowledge to increase donations, such as through the provisioning of attention to, and recognition of, volunteers through social media. I predicted that the costliness of spotlighted behavior and the target signal clarity (i.e., individual vs. group spotlight) would interact with participants’ dispositional dominance and prestige-based status motives to influence volunteerism interest. To explore these associations, …

Psychological And Inflammatory Ties To Diet In Breast Cancer Survivors, Sonal Kaur Johal

Master's Theses

Breast cancer is among the most prevalent forms of cancer and is a primary cause of death among women (Wang et al., 2020). Cancer patients experience higher levels of anxiety symptoms, depressive symptoms, and inflammation compared to non-cancer patients, which can predict a diminished quality of life but also contribute to higher mortality rates among cancer patients (Bortolato et al., 2016; Song et al., 2022). Diet has the potential to impact the manifestation of depressive and anxiety symptoms in both healthy individuals and those battling cancer. This study explored the association between dietary habits, specifically cholesterol, fiber, saturated fat, added …

Assessment Of Mississippi Landfill Capacity In Relation To Waste Generation And Land-Use Constraints, Jason C. Anderson

Master's Theses

Municipal solid waste (MSW) management presents a growing challenge in Mississippi as population trends, socioeconomic change and regional development continue to place pressure on existing landfill capacity. This thesis examines waste generation and disposal patterns from 2000 through 2022 across Mississippi counties, with projections extending to 2050. Historical landfill tonnage data was gathered and compiled from the Mississippi Department of Environmental Quality (MDEQ) and analyzed using regression models in Excel and RStudio, with forecasts generated for both in-state and out-of-state waste flow. Results highlight significant variations among landfills, including differing closure timelines, changing county service areas and notable shifts in …

Mazique (22ad502): Late Woodland Village Or Vacant Ceremonial Center?, Lonnie A. Burch Jr

Master's Theses

Overlooking the bank of Second Creek near Natchez, Mississippi, the Mazique (22AD502) site is a Coles Creek period (AD 750-1000) mound and plaza center that once featured three mounds surrounding an open central plaza. Mounds A and B still sit prominently along the southern and eastern edges of Mazique’s plaza. The location of  Mound C remains unclear. Historic agricultural and construction activities have left no visible trace of the monument. The 2021 University of Southern Mississippi archaeological field school set out to investigate potential locations for Mound C and to explore the site's functionality.

Did the Mazique site support a …