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From Coverage To Care: Evaluating The Effects Of Aca Medicaid Expansion On Birth Outcomes, Bailey R. Lengfelder

Economics Honors Projects

I examine the impact of the Affordable Care Act’s Medicaid expansion on maternal and fetal health outcomes using National Center for Health Statistics Natality data from 2006 to 2023. I exploit staggered state adoption as a quasi-experiment, and the staggered differences-in-differences estimates indicate an increase in the share of Medicaid births but broadly no impact on maternal prenatal care, maternal health, and fetal health. The absence of statistically significant effects is consistent across heterogeneity groups. These null findings indicate that expanded insurance access through the Affordable Care Act may be insufficient to improve health outcomes. I do find a statistically …

“A Civilised Order”: Political Economy Of Welfare State Development In United States And South Africa, Camden M. Webb

Masters Theses

The welfare state and its development across national contexts in the twentieth century signaled a marked change in the state’s relationship with its citizens. They developed in a structural crisis between two political economy organizations, moving from liberal structures to regulated ones. As the world continues the current ongoing structural crisis out of the neoliberal structure, the future of welfare policy is uncertain. My research presents a Qualitative Comparative Analysis (QCA) using the United States and South Africa as most-different cases to explore the similarities and differences in their national contexts that shaped their welfare state development in the early …

Ccb Release Impact On Indonesia’S Bank Lending: A Difference-In-Differences Approach, Sang Tyas Suci, Beta Yulianita Gitaharie

Jurnal Ekonomi dan Pembangunan Indonesia

This study investigates the impact of Indonesia’s Capital Conservation Buffer (CCB) release on loan growth during the COVID-19 recession. Using a Difference-in-Differences (DiD) approach and bank-level data from 2019:Q1 to 2022:Q2, it analyzes how regulatory capital relief affected lending. The results indicate that the regulation was an effective countercyclical tool to increase loan growth, particularly among less-capitalized banks. The research contributes to the limited empirical evidence on capital buffer policies in emerging markets by examining the effectiveness of temporary capital relief in crisis contexts. We suggest future research on the buffer reimposition and exploring its implications for post-crisis lending behavior.

Strategic Peer Region Selection For Economic Development, Xiaobing Shuai, Riley Ford

School of Professional and Continuing Studies Faculty Publications

Benchmarking against peer and aspirational regions is essential for economic development because it provides meaningful context for evaluating performance and shaping strategy. These comparisons help highlight regional advantages that attract new investments, as well as uncover gaps that may represent opportunities for future growth. ...

This article provides a practical, data-driven framework that economic development organizations can use to identify peer and aspirational regions, strengthen benchmarking efforts, and support strategy development. A case study illustrates how this can be applied to better interpret economic indicators and inform decision-making. For EDOs, this approach offers a more consistent way to evaluate competitiveness, …

Zero-Sum Thinking, Meritocratic Beliefs, And Preferences For Basic Income And Universal Healthcare, David Chavanne

Economics Faculty Publications

This study uses survey responses to explore how support for basic income and universal healthcare is linked to zero-sum thinking and meritocratic beliefs. Consistent with earlier work, I find that zero-sum thinking and weaker meritocratic beliefs both lead to greater levels of support for basic income and universal healthcare. Using a path analysis, zero-sum thinking is also found to strengthen support for basic income and universal healthcare along two separate channels -- one via zero-sum thinking’s direct effect on policy support and a second via an indirect effect, whereby zero-sum thinking is attached to weaker beliefs in meritocracy, which in …

When Prices Spike: Identifying Excessive Volatility In Fertilizer Markets, Feng Yao, Manuel A. Hernandez

Economics Faculty Working Papers Series

Sharp and volatile fertilizer price movements can hinder adoption and reduce agricultural productivity, especially among vulnerable smallholders. Using a nonparametric location-scale approach to model price returns, we quantify the conditional value-at-risk (CVaR) - the high return threshold exceeded with low probability - to identify excessive price spikes in potash, urea, and di-ammonium phosphate (DAP) markets. We use the bias-corrected estimator from Martins-Filho et al. (2018) and propose a simpler estimator based on Hill (1975). Backtesting results indicate superior performance of the Hill-based estimator, supporting its value as a convenient method for detecting unusual fertilizer price surges amid recurring global volatility.

Smu Launches Resilient Workforces Institute To Strengthen Singapore’S Workforce In The Age Of Ai, Singapore Management University

SMU Press Releases and News

Singapore Management University (SMU) announced the launch of the Resilient Workforces Institute (ResWORK), a new university-level research institute advancing workforce resilience and lifelong learning amid accelerating technological change. It is among the first institutes in Singapore and the region to jointly study adult-learning and the future of work through an integrated, interdisciplinary lens spanning economics, management, behavioural science and technology.

Do Major Customers Affect Firms' Environmental, Social And Governance Activities?, Feng Dong, John A. Doukas, Stephanie Walton, Rongyao Gloria Zhang, Yiyang Zhang

Finance Faculty Publications

We examine the role of major customers in shaping firms' environmental, social and governance (ESG) practices. We find that firms with major customer relationships undertake fewer ESG activities compared to those without such ties. The association is attenuated when institutional ownership is high, firms are less diversified, customers exhibit greater bankruptcy risk and lower switching costs and during periods of elevated equity market sentiment. Taken together, our findings highlight that reliance on a concentrated customer base can weaken firms’ incentives to engage in ESG practices, with important implications for supply chain sustainability.

International Evidence On The Relationship Between Financial Literacy And Corporate Cash Holdings, Kenneth Yung, Reza Kahibavil, Su Li, Arian Amidi

Finance Faculty Publications

This study is the first investigation of the relationship between corporate cash holdings and financial literacy (FL). We find that a one‐standard‐deviation increase in FL is associated with an 8%–27% reduction in corporate cash holdings, depending on the measure of FL used. Moreover, higher FL reduces the market value of excess cash, indicating that financially literate environments discourage value‐destroying cash accumulation. The results remain robust across alternative definitions of FL and cash holdings, estimation methods, and country subsamples. We further rule out the influence of endogeneity, refinancing risk, and variation in cash needs. Additional analyses identify agency costs as the …

Natural Resource Rents And Energy Poverty Nexus In Next Eleven Economies, Muhammad Salah Uddin, Ayub Ali, Zobayer Ahmed, Md Nasir Uddin Sikdar, Ahsan Habib, Abdullah Elah Al-Mahde

Finance Faculty Publications

Energy poverty (EP) remains a persistent global challenge with important implications for economic development, public health, and social welfare. While natural resources, particularly oil and gas, are often viewed as key sources of energy access, their effectiveness in mitigating EP remains underexplored in emerging economies. This study examines the relationship between natural resource rents (NRR), specifically oil rents (OR) and natural gas rents (NGR), and energy poverty (EP) in the Next Eleven (N-11) countries from 2000 to 2020. The primary objective is to assess how NRR influences EP at various levels of poverty using the Method of Moments Quantile Regression …

How Operational And Disclosure Complexity Shapes The Conglomerate Discount, Feng Dong, John A. Doukas, Son Wilson, Rongyao Zhang

Finance Faculty Publications

This study examines how firm operational diversification and disclosure complexity jointly drive the conglomerate discount. We disentangle disclosure complexity, which is determined by managerially influenced financial transparency, from accounting complexity, which is a direct informational consequence of operational complexity. We find that operational diversification is consistently associated with significant conglomerate discounts, while disclosure complexity independently reduces firm value and amplifies the magnitude of the discount when diversification is high. These findings suggest that transparent disclosures can mitigate valuation costs, offering important implications for managers seeking effective communication, investors assessing complex firms, and policymakers aiming to enhance disclosure quality and market …

Ceo-Employee Pay Ratio Disclosure And Dividend Policy, Rajib Chowdhury, John A. Doukas

Finance Faculty Publications

We examine whether and how the magnitude of the CEO pay ratio affects dividend policy in the context of inequality-averse investors. Our results demonstrate a positive association between the two and remain robust to endogeneity concerns. We find that the CEO pay ratios positively affect dividends irrespective of whether CEO compensation contracts motivate risk-averse or risk-taking policy choices. This non-diverse effect on dividend policy across CEOs with different pay structures contradicts previous studies and highlights the wealth effect resulting from the SEC mandate. Further analyses reveal a negative effect of the pay ratio on cash holdings and investment inefficiency.

Tourism And Quality Of Life In Montana: A Longitudinal Study Of Resident Attitudes 2012-2023, Sophie Morris, Melissa Weddell, Carter Bermingham, Megan Schultz

Institute for Tourism and Recreation Research Publications

Montana’s outdoor recreation and tourism industries have experienced steady growth over the past decade. This report explores how that expansion has shaped residents’ perceptions of tourism. Drawing on data from Montana residents, we track changes in attitudes from 2012 to 2023 on key issues, including overcrowding, the balance between tourism’s benefits and its impacts, quality of life, and the state’s role in promoting tourism.

The State Of Short-Term Rentals – 2024, Elena Bigart, Melissa Weddell, Jesse Wheeler, Sophie Morris, Jenna Asnault

Institute for Tourism and Recreation Research Publications

This report examined the role short-term rentals (STRs) play in Montana’s housing challenges, building on earlier ITRR research (Bigart et al., 2021). Using a mixed-methods approach, the study analyzed STR and housing data from 2019 to 2023 and incorporated interviews with local officials to assess evolving regulations, occupancy patterns, and perceptions of STR impacts. Findings highlight that STRs interact with broader market forces contributing to tight housing conditions and underscore the need for balanced policy approaches that support housing supply and affordability while sustaining tourism-related economic activity.

Dampak Program Pembangkit Listrik 35.000 Mw Terhadap Tingkat Pekerjaan Dan Kemiskinan Di Indonesia, Yohanes Dwi Anggoro, Jahen Fachrul Rezki

Jurnal Ekonomi dan Pembangunan Indonesia

This research analyzes the 35,000 MW Program’s impact on employment and poverty levels in Indonesia using the Callaway and Sant’Anna Difference-in-Differences (CSDID) method. The research uses panel data at the district/city level from 2007 to 2022. The analysis shows the program has a significant impact on reducing poverty, with an average reduction of 5,208 poor people in Model 1; 4,277 people in Model 2; and 4,284 people in Model 3. Based on a subset of regions, the analysis shows the program had a significant impact on increasing the employment rate by 1.2 percent, reducing 16,034 poor people in the Java-Madura-Bali.

Dampak Peraturan Daerah Terkait Kesehatan Terhadap Prevalensi Stunting Tingkat Kabupaten/Kota Di Indonesia, Cakra Yudi Putra, Teguh Dartanto

Jurnal Ekonomi dan Pembangunan Indonesia

Stunting remains a major public health challenge in Indonesia with long-term impacts on health, cognition, and productivity. This study examines whether health-related regional regulations (Peraturan Daerah or Perda) reduce stunting prevalence across 338 districts/municipalities in 2007 and 2013. Using Difference-in-Differences (DiD) and DiD with Propensity Score Matching (DiD-PSM) on secondary data from Riskesdas, Statistics Indonesia (BPS), and the Legal Documentation and Information Network (JDIH), we find no statistically significant causal effect of cumulative health Perda on stunting reduction, although OLS shows a negative association. Sanitation significantly reduces stunting in eastern Indonesia. Findings highlight the need for evidence-based, multisectoral, measurable, implementable, …

The Impact Of Remittances On Food Security In Times Of Crisis—Evidence From Covid-19 In Latin America And The Caribbean, Colin Cannonier

Funded Scholarship

This study examines the association between workers’ remittances and food insecurity in Latin America and the Caribbean using data from a Coronavirus survey covering over 100,000 individuals during the COVID-19 pandemic. Results indicate that receipt of remittances is associated with an 8.8% decrease (2.5% points) in overall food insecurity. Heterogeneous effects are observed among females, individuals in Latin America, and households with children. Remittances from the USA exhibit a stronger influence on reducing food insecurity. The findings underscore the potential importance of remittances in improving food security at both extensive and intensive margins. Policy issues are also discussed.

Assessing Attitudes Toward Ai Futures: Perceived Likelihood And Policy Preferences, David Chavanne

Economics Faculty Publications

The experiment presented in this paper uses vignettes to measure the perceived likelihood of different AI futures and assess how policy preferences change across these futures. One vignette varies the degree of future AI-driven job loss in a hypothetical scenario set five years into the future, while another vignette varies the degree of future AI autonomy across the same timeframe. Participants provide their perceived likelihood that the world will resemble the scenario in the vignette, and they also express their level of support for either universal basic income (UBI) or a jobs-guarantee program (JG) if the world in five years …

Policy Snapshot : Health Insurance Trends Among Child Care Educators, Sara Amadon

Straus Institute for Thriving Children & Families

This brief compares the health insurance status of child care educators in 2019 and 2024—spanning the COVID-19 pandemic and preceding 2026H.R.1’s implementation—to highlight shifting coverage patterns and state-level solutions to safeguard this essential workforce.

Towards Energy Access For All: Developing The Lived Energy Experience Index (Leei), Kentina Annie Ishimwe

Electronic Theses and Dissertations

Energy is the fuel that powers the engine of civilization. Energy access metrics ensure that nations continuously work towards providing access for all. However, the prevalent binary indicator fails to consider that energy needs to be usable, accessible, affordable, and reliable. As a result, numerous tiered and multidimensional metrics, such as the Multi-Tier Framework, came about to bridge the gap but proved to be complex and complicated to implement. This study presents the existing literature review, assesses the limitations of current energy access measurement frameworks, and compares household energy needs with reported access statistics. Based on the findings, the Lived …

Book Review: Virtuous Bankers: A Day In The Life Of The Eighteenth-Century Bank Of England, David L. Cleeton

Faculty Publications – Economics

In Virtuous Bankers: A Day in the Life of the Eighteenth-Century Bank of England, Anne Murphy performs an exemplary feat of historical reconstruction. While most economic histories focus on the high-altitude movements of capital or the grand political maneuvers of central banks, Murphy descends into the dust and ink of Threadneedle Street. By framing her study as a single, composite day in the life, she transforms a dry institutional history into a sensory, professionally guided experience of the 1780s.

Differential Impact Of Admission Type And Clinical Complexity On Diabetes Hospitalization Costs Among African American And Hispanic Patients In Southeastern Virginia, Ismail El Moudden, Asra Amidi, Reem Sharaf-Alddin, Michael C. Bittner, Qi Zhang

Department of Obstetrics & Gynecology Faculty Publications

Background

Diabetes mellitus (DM) imposes substantial healthcare costs with documented disparities among African Americans and Hispanic patients. To inform care delivery and resource allocation, this study identified hospitalization cost predictors among African American and Hispanic patients with diabetes in Southeastern Virginia.

Methods

We analyzed 6,011 hospital discharges from the Virginia Health Information database (2016-2020) for adults aged 18-85 with diabetes. Discharges were classified by Medicare Severity Diagnosis-Related Groups: DM with complications/comorbidities (DCC, n = 3,328), DM with major complications/comorbidities (DMCC, n = 1,518), and DM without major complications/comorbidities (DWO, n = 1,165). Because cost distributions were right-skewed (skewness 3.5-8.24), we …

The Impact Of Student Achievement On Economic Growth: A Pisa-Based Analysis Of Gdp Per Capita, Emma Rose Nasr

Undergraduate Theses and Capstone Projects

This study investigates the extent to which international student achievement, measured through PISA assessments in mathematics, reading, and science, explains cross-country differences in economic development. Using an unbalanced panel data set combining PISA results from 2015, 2018, and 2022 with macroeconomic indicators from the World Development Indicators, I estimate multiple regression models, including pooled OLS, country and time fixed effects, and subsample analyses for developed and developing countries. Results from the pooled model indicate strong positive associations between PISA scores and GDP per capita, consistent with human capital theory. However, these relationships diminish under fixed effects specifications, suggesting that cross-country …

Visit Complexity Differs Between Scarring And Nonscarring Alopecia: A 5-Year Dataderm Analysis, Ian Noel Encarnacion, Noelle Desir, Nicholas Schell, Apoorva Mehta, Temitayo Ogunleye, Susan Taylor

Department of Medicine Faculty Publications

[Introduction] Accurate coding is a critical component of dermatologic practice, influencing reimbursement and documentation of clinical complexity. Although alopecia has significant psychosocial and financial burdens, Current Procedural Terminology (CPT) coding patterns in alopecia management remain largely understudied. Our population-level study using the American Academy of Dermatology's DataDerm clinical registry¹ evaluates alopecia CPT coding trends, pre-2021 and post-2021 evaluation and management (E/M) CPT coding updates,² aiming to inform coding practices and visit complexity, which have significant reimbursement implications.

The Effect Of The Affordable Care Act Medicaid Expansion On The Risk Of Hospital Closure And Adolescent Hpv Immunization In Rural Counties, Juliette Des Rosiers

Scripps Senior Theses

From 2005 to 2025, over 200 rural hospitals shut their doors, often citing increased operational costs, staffing shortages, low patient volume, regulatory barriers, financial challenges exacerbated by the COVID-19 pandemic, and uncompensated care as common contributors to the closures. Rural patients are often referred by their primary care physician to a hospital for regular immunizations, since smaller clinics have less capacity to provide immunizations due to a shortage of pediatricians and limited vaccine stock. A crucial vaccine that is not required by schools and underutilized in rural areas is that against human papillomavirus (HPV), a virus that infects cutaneous and …

High-Resolution, Fast-Response Optical Fiber Temperature Sensor With A Large Measurement Range Based On Fiber-Tip Alumina Fabry-Pérot Interferometer, Ruimin Jie, Chen Zhu, Robert Abbott, Michael Davis, Xiong Zhang, Jie Huang

Electrical and Computer Engineering Faculty Research & Creative Works

We present an alumina-tip optical fiber Fabry-Pérot interferometric temperature sensor exhibiting high-temperature performance, rapid response, and high resolution. Fabricated by fusion splicing an alumina micro disk directly to a single-mode fiber, the sensor achieves robust, stable operation without complex fabrication processes or adhesives. Experimental evaluation confirms a measurement range extending to 1000°C, with sensitivity of 28.66 pm/°C, a resolution of 0.042°C, and a rapid response time of approximately 13 ms. Compared to state-of-the-art optical fiber FPI sensors, our alumina-tip sensor offers superior overall performance, effectively addressing critical demands for high-resolution, fast-response temperature measurement in extreme environments including aerospace, structural monitoring, …

Shrinkflation And Consumer Demand, Aljoscha Janssen, Johannes Kasinger

Research Collection School Of Economics

This study investigates shrinkflation—the practice of reducing product size while maintaining or slightly changing prices—in the U.S. retail grocery market. We analyze a decade of retail scanner data to assess the prevalence and patterns of product size changes across various product categories. Our findings show that approximately 1.92% of products have been downsized. When comparing total sales, product downsizing is more than five times as prevalent as upsizing. Product downsizing typically occurs without a corresponding decrease in price and is widespread across product categories. Consequently, consumers end up paying more per unit volume. We further find that consumers are more …

Bargaining Inefficiency Due To Mispricing Under Incomplete Information : Evidence From The Bilateral Oligopolistic Containership Time Charter Market, Jaeung Cha

World Maritime University Ph.D. Dissertations

A well-established body of bargaining studies theoretically demonstrates that inherent limitations in observing the counterplayer’s private information give rise to an incomplete information setting in bargaining, leading to efficiency losses associated with mispricing, costly delays, and even bargaining failures. As the shipping market, a business-to-business market in which products are generally heterogeneous and the number of both sellers and buyers is limited by high entry/exit barriers, relies on a bargaining mechanism to determine tailored transaction prices, market pricing is prone to inefficiencies associated with incomplete information. However, the relevant empirical evidence remains underexplored in both the shipping finance and bargaining …

Board Attributes, Firm Performance, And The Moderating Role Of National Culture: A Meta-Analysis, Matthew Farrell, Chris H. Willis, Nathapon Siangchokyoo, Ryan L. Klinger, Jamil Kreugel, Hami Usta, Timiry R. Tian, Ying Thaviphoke, Samuel Wilson

Management Faculty Publications

Research Question/Issue

The impact of board structures on firm performance remains a contentious governance topic with competing theoretical paradigms and inconclusive empirical support. Scholars propose that national culture could reconcile contradictory evidence; yet, argumentation is fragmented and direct tests are rare. We meta‐analyzed 513 samples across 54 countries to examine relationships between board structures (i.e., board size, board independence, and CEO duality) and firm performance. We model national culture, using Hofstede's six cultural dimensions, as moderators to test whether these relationships align with agency or stewardship theory across different cultural settings.

Research findings/insights

Findings indicate a substantial moderating role of …

Application Paths Of Semantic Modeling In Financial Fraud Detection And Risk Identification, Victor P. Gauthier, Daniel S. Wu

Computer Science Faculty Publications

Financial fraud and risk pose significant threats to economic stability and individual well-being. Traditional detection methods often struggle to keep pace with increasingly sophisticated fraudulent schemes. Semantic modeling, which focuses on understanding the meaning and relationships within data, offers a promising avenue for enhancing fraud detection and risk identification. This review paper explores the application paths of semantic modeling in this domain. We begin with a historical overview of fraud detection techniques, highlighting the limitations of traditional approaches. Subsequently, we delve into core themes, including knowledge graph-based fraud detection and semantic rule-based inference for risk assessment. We then compare and …