Digital Commons Network^™

Letter From The Editor, Jay Nathan

Journal of Global Awareness

No abstract provided.

Linking Fishery Productivity To Child Health In The Coastal Tropics, Francisco Flores-Mejia

Master's Theses

Fish are a primary source of calories, macronutrients, and income for coastal communities around the world, but overfishing and environmental changes have dramatically reduced productivity in the majority of small-scale fisheries. The social costs of these losses are believed to be large, particularly in poorer communities, but most estimates of fishery productivity effects on households are contextual and difficult to generalize. We combine a remote sensing measure of pelagic fishery productivity with geolocated child health and growth data from 34 countries in the coastal tropics. We estimate that the difference between sustainedly good versus bad fishing conditions corresponds up to …

Crop Yield Shocks And Conflict In Sub-Saharan Africa: Subnational Evidence From Satellite-Based Yield Predictions, Benson I. Adomako

Master's Theses

This paper examines whether crop yields affect violent conflict at the subnational level across seven Sub-Saharan African countries: Burkina Faso, Ethiopia, Mali, Malawi, Niger, Nigeria, and Tanzania, over the period 2010 to 2024. A central identification challenge is that observed yields are endogenous to conflict: armed violence disrupts planting, cultivation, and harvest. To address this, I train a machine learning model on observed maize yield and satellite and environmental features to generate predicted yields for 1,338 second-level administrative districts annually. These predictions serve as the key regressor in a two-way fixed-effects panel with district and year fixed effects. I find …

Spatial Analysis Of Maize Yields And Household Dietary Diversity In Sub-Saharan Africa: Causal Evidence From A Machine Learning Instrument, Addi Joof

Master's Theses

MAIZE YIELDS AND HOUSEHOLD DIETARY DIVERSITY IN SUB-SAHARAN AFRICA: EVIDENCE ON THE CAUSAL EFFECT FROM A MACHINE LEARNING INSTRUMENT

Addi Joof, University of San Francisco, May 2026

This paper provides estimates of the effect of maize yield on household dietary diversity across seven Sub-Saharan African countries, using data from 36,474 maize-growing households in the Living Standards Measurement Study Integrated Surveys on Agriculture (LSMS-ISA) panels for the period 2008--2021. OLS estimates which include district and country-by-wave fixed effects yield a positive and significant coefficient of 0.070 (SE = 0.006, p < 0.001), implying that a 10 percent increase in maize yield raises the Household Dietary Diversity Score (HDDS) by approximately 0.007 food groups. Because self-reported yields are subject to classical measurement error and unobserved household characteristics confound the OLS estimate, we construct an instrumental variable using a Random Forest model trained on satellite-derived agro-environmental features including the Enhanced Vegetation Index, Normalized Difference Vegetation Index, Growing Degree Days, precipitation, and soil moisture obtained from Google Earth Engine at the GPS-coordinate-by-year level. Our preferred 2SLS specification, which adds region fixed effects to absorb persistent sub-national geographic variation, returns a positive point estimate of 0.217 (SE = 0.206; 95% CI: -0.19 to +0.63, p = 0.294) larger than OLS and consistent with downward attenuation bias, but imprecisely estimated and statistically indistinguishable from zero at conventional levels. We interpret the OLS estimate of 0.070 as a credible lower bound on the true effect, with the IV evidence pointing to a moderately larger but uncertain magnitude. Heterogeneity analysis reveals a declining gradient across consumption quintiles the effect is strongest among the poorest households (Q1: 0.055, p < 0.01) and diminishes with wealth (Q5: 0.015, not significant) while showing no gradient across market-integration levels. These patterns are consistent with own-consumption, rather than market income from surplus sales, as the primary pathway from yield to dietary diversity. OLS estimates are positive and significant in five of six estimable countries. The findings suggest that maize yield improvements can serve as a nutrition co-investment, particularly for subsistence-oriented smallholders, though the available data do not permit a sharp causal quantification of the effect size.

Keywords: dietary diversity, maize yields, instrumental variables, Sub-Saharan Africa, LSMS-ISA, satellite …

What Complexity Costs: Growth, Productive Capability, And The Vulnerability Of Interconnectedness, Pete Mcniff

Master's Theses

Growth depends on the sophistication of what an economy can produce, but economies that have specialized more deeply depend on the market access that sustains it. I test whether this dependence makes complex economies more vulnerable when access is disrupted, computing the Economic Complexity Index (ECI) from firm-level records in the U.S. Census of Manufactures (1850--1880) and using the Panic of 1873 as a natural experiment to measure county-level market access shocks from railroad bond defaults following Dutta (2024) and Donaldson and Hornbeck (2016). ECI predicts production and employment growth across all three decade windows, with the association strengthening as …

Trust, Civic Institutions, And Crisis: A Study Of Civic Culture In Italy, Nolan Joseph Sherwood

Master's Theses

This paper examines whether cultural familism — the orientation of trust toward family at the expense of strangers and civic institutions — shapes civic institutional engagement in Italy across three levels of analysis. The first analysis links four familism indices constructed from the European Values Study (2017) to pre-COVID municipal 5 per mille tax allocation rates across approximately 7,700 Italian municipalities, finding that higher Trust Gap and Institutional Distrust robustly predict lower baseline civic giving, both nationally and within each region. The second analysis uses a Regression Discontinuity in Time design exploiting the sharp onset of COVID-19 in 2020, finding …

The Evolution Of Economic Rhetoric And Its Correlation With The Marginalization Of Ethics In Economics, Mi Phan, Rhiannon Scharnhorst

Undergraduate Research (Journal)

Economic discourse has undergone a profound transformation from its moral-philosophical origins to contemporary mathematical formalism. This study examines whether the shift toward formalized economic writing resulted in the marginalization of explicit ethical reasoning. Through comparative textual analysis of twelve chapters from six influential works—spanning from Adam Smith’s Wealth of Nations (1776) to Milton Friedman’s methodological essays (1953)— the research identifies a pattern in which ethics is less and less prevalent. Pre-formalist economists like Smith and Marx integrated moral arguments directly into their analytical frameworks, examining questions of exploitation, justice, and social welfare as central to economic inquiry. Post-formalist economists, pursuing …

Hedonics Of Used Car Attributes On Market Price, Alexander Bent, Jason Gutierrez

Undergraduate Economics Working Paper Series

This paper uses Rosen's paper on hedonic pricing as a framework to analyze the determinants of used car prices found in Craigslist. Using cleaned data, we observe over 43,000 listings from 2005 to 2020 and investigate factors that affect used car prices and how they interact in this market. Results show that odometer readings and condition are the strongest factors that determine price, while manufacturers, paint color, drive type, fuel type, size, and year have more ambiguous effects that depend on certain perceived attributes or conditions.

Key Determinants Of Diamond Value, Tobey Brill, Alexander Dobrovolskyi, Rayland Labayog

Undergraduate Economics Working Paper Series

This paper intends to examine the determinants of diamond pricing using a hedonic regression framework. Using the diamonds dataset from Wickham (2016), we analyze the four C’s, also known as carat weight, cut, color, and clarity. We also wanted to go deeper into this topic and look into the depth and table to see how it impacts diamond pricing. Results have displayed that carat weight greatly influences a diamond’s price, while characteristics such as clarity, color, and cut exert positive effects. Estimates were found to be statistically significant. Our findings confirm and reassure the idea that hedonic pricing accurately captures …

Social Determinants Of Low Educational Attainment, Isabelle Graham, Kevin Lieng, Aubriana Weisbach

Undergraduate Economics Working Paper Series

This paper examines how socioeconomic and demographic factors influence low educational attainment across U.S. cities. The analysis estimates both a linear regression model and a semi-log model to evaluate how poverty, unemployment, family structure, age composition, overcrowding, racial and ethnic minority share, broadband access, and housing cost burden affect the percentage of adults without a high school diploma. The results show that poverty, overcrowding, and minority share are the strongest predictors of low educational attainment, each exhibiting positive and highly significant effects. Overall, the findings highlight the role of social factors in shaping educational outcomes in high school.

The Effects Of Neighborhood And Interior Characteristics On Residential Sale Prices, Ella Sophie Hagman

Undergraduate Economics Working Paper Series

This study analyses to what extent certain neighborhood and interior characteristics affect residential sale prices, after accounting for standard property variables. This is important to examine in order to understand the function of the housing market, the sources of price differences, and whether residential values can be controlled by prioritizing specific desirable property features. The study is based on a dataset of approximately 330,000 observations from the Multiple Listing Service (MLS), as well as walkability data obtained from Walk Score. The data is analyzed in Stata, using three regression models with different combinations of explanatory variables. The results show that …

Do Rural Areas Gender-Discriminate Wages More Than Metropolitan Areas?, Ali Gonzalez, Michael Montano, Brandon Sacks, Joseph Williams

Undergraduate Economics Working Paper Series

This study analyzes the gender wage gap in metropolitan versus rural areas using U.S. hourly wage data from the Bureau of Labor Statistics (BLS), for the period 2010-2025. The analysis uses regressions on a semi-log wage model and Blinder-Oaxaca decompositions to compare the gaps and separate the effects attributable to explained (endowment) differences from those attributable to unexplained (coefficient) differences. The semi-log wage model reveals a percentage wage decrease for females of approximately 17.4% in rural areas and 9.9% in metropolitan areas. The Blinder-Oaxaca decompositions further indicate that the unexplained (coefficient) component of the gap is substantially larger in rural …

Labor Market Responses To Ai: Measuring Wage Effects Across U.S. Occupations, Kaitlin Pham, Karla Rodriguez

Undergraduate Economics Working Paper Series

Artificial intelligence (AI) is rapidly changing economies around the world, with some experts predicting an impact greater than the Industrial Revolution. As AI becomes more common in daily life and business, questions have grown about how it might affect jobs, wages, and inequality. The rise of automation and highly capable AI models has made people wonder which occupations will benefit and which might be at risk. This study looks at how exposure to AI technologies affects wage trajectories in the United States. Using occupational-level data from O*NET and the U.S. Bureau of Labor Statistics, we build an AI exposure index …

The Structural Limitations Of Mining Output Growth In Nevada, Mckinley Brown, Emma Kitchen

Undergraduate Economics Working Paper Series

This study compares short and long trends in Nevada to the production output within the mining industry. Nevada produces around 70% of the United States gold and about 15% of the world's critical minerals. From its position as one of the most resource rich mining regions globally to its emergence as a growing economic hub, mining played a central role in Nevada's economy. However, despite the industry’s importance, Nevada still faces inefficiencies in production output due to insufficient attention to key inputs such as labor, infrastructure, technology, and energy resources.

Determinants Of March Madness Tournament Advancement, Jace Waldahl

Undergraduate Economics Working Paper Series

This paper examines whether tournament seed and team efficiency ratings help explain how far teams advance in the NCAA men's basketball tournament. Using Bart Torvik NCAA basketball ratings data from 2008 to 2025, I construct a team-year dataset with tournament advancement measured from 1 to 7, where higher values represent deeper runs. The main independent variables are seed, net efficiency, offensive efficiency, and defensive efficiency. Descriptive statistics, correlations, scatterplots, and OLS regressions are used to test whether better-seeded and more efficient teams advance further. The results show that seed is the strongest and most consistent predictor of advancement, but efficiency …

Innovation Capability And The Performance Of Women Entrepreneurs: The Role Of Business Incubation Programs To " Moving Up A Class, Lily Purwianti, Hepy H. Ariyanto, Edy Yulianto Putra, Suherlina Suherlina

Arab Economic and Business Journal

This study analyzes the impact of  innovation capability on the performance of women entrepreneurs, with a focus on the role of business incubation program to "move up a class" in Riau Islands Province, Indonesia. The research  aims to evaluate how  business incubation programs  influence the relationship between innovation ability and the performance of women entrepreneurs.  Data were collected through questionnaire  completed by 129 female entrepreneurs who took part in  a Business Incubation program in Riau Islands Province. This study used a quantitative methodology. The PLS (Partial Least Square) software was used for data processing. The results show that while digital …

Constitutionality Of Gender Pay Disparities In New York, Kevin Dean Moton, Sr.

Walden Dissertations and Doctoral Studies

No abstract provided.

Research Progress And Think Tank Contributions To Regional Coordinate Development, Major Function Zoning Strategy, And Modern Spatial Governance—Based On Review And Analysis Of Contributions By Fan Jie’S Team In Bulletin Of Chinese Academy Of Sciences, Jie Fan, Jian Gao, Kan Zhou, Gan Li

Bulletin of Chinese Academy of Sciences (Chinese Version)

Based on the think tank research published by Fan Jie’s team in Bulletin of Chinese Academy of Sciences, this study reviews the progress of human geography in the fields of regional coordinate development, major function zoning strategy, and the spatial governance system. Furthermore, it focuses on reviewing the think tank contributions that serve the need of major national strategic decision-making. Think tank contributions include the followings. (1) Through continuous engagement in major preliminary research for national Five-Year Plans, the team has established a prominent think tank brand for the Chinese Academy of Sciences. This brand focuses on regional coordinate development …

Do Universities Underpay Professors? Yes, Especially Women, Zhanhan Yu, Alfonso Flores-Lagunes

Upjohn Institute Policy and Research Briefs

No abstract provided.

The Nexus Between Sino-African Economic Engagement, Us-African Security Cooperation And Foreign Direct Investment: National Security Implications Using A Comparative Analysis Of Nigeria And Other Selected African Countries, Chine Sp Logan

Doctoral Dissertations and Projects

This study examines the intricate interplay between the United States-African Security Partnership, China’s African Economic Partnership-Belt and Road Initiatives (BRI), and the influx of foreign direct investment (FDI) in Africa. It delves into the nuances of the US-African Security Partnership, focusing on US military training and security assistance through the United States African Command (AFRICOM) and the China-Africa BRI initiative, which centers on loan funding. Moreover, it analyzes how national security considerations influence FDI inflow. By scrutinizing the roles of robust institutions, the study evaluates how these factors impact the long-term achievement of the United Nations' sustainable development goals for …

Technological Innovation, Industrial Development And Financial Support, Yiming Wang

Bulletin of Chinese Academy of Sciences (Chinese Version)

Currently, the new round of technological revolution is accelerating its breakthroughs, and scientific and technological innovation has become the main battlefield for the competition among major countries. Facing increasingly fierce international competition in science and technology, China must strengthen the orientation of original innovation in scientific research and technological development, shift from “catching up” to “keeping pace” and “taking the lead” in more fields, from innovation in terminal products to breakthroughs in key core technologies, and from integrated innovation to original innovation. In recent years, China’s industrial competitiveness has significantly enhanced, mainly due to the gradual formation of advantages such …

Origins And Evidence Of The Fed's Fiscal Effects From Coronavirus Response, Haynes A. Mcdaniel

Doctoral Dissertations and Projects

The year 2020 introduced modern American society to viral pandemic conditions not seen in over a century. By ravaging human health and spreading fear, the Coronavirus (Covid) period of 2020 to 2022 significantly impaired interpersonal economic transactions as it transformed beliefs about economics, politics, and social wellbeing. This research focuses on the Fed’s economic policy decisions during the early months of the Coronavirus pandemic when effects of the 2008 financial crisis still lingered as long-term government programs. It was an extraordinary time when policymakers were forced to meander prior policy effects of astonishing reach while considering new policies intended to …

The Impact Of Property Tax Exemptions On The Hospital Real Estate Utilization, Howard Allen Levine

Doctoral Dissertations and Projects

This dissertation analyzes the effects of property tax exemptions on real estate utilization by hospitals in the production of medical services. Economic theory suggests that differential taxing creates inefficiencies causing destruction of wealth from deadweight loss. Property taxation is done by state and local governments. State and local governments spend 4.5 trillion dollars annually in the United States (Pustejovsky & Little, 2023, p. 2). Although only spending on services using real estate has efficiency effects due to real estate taxes, every 1% gain in overall efficiency is 45 billion dollars saved annually if the results can be generalized to all …

Prenatal Care, Pregnancy Risk, Birth Outcomes And The Role Of Neighborhood Characteristics, Monica Garcia-Perez Phd, Randy Huard Phd, Christopher Thoms Phd, David Tilstra Md

InnovateHER Meeting 2026

This study links 2024 CentraCare Health birth records with neighborhood census tract conditions from the National Neighborhood Data Archive (NaNDA, 2020/2021) to examine how place, prenatal care, and clinical risks influence birth outcomes in Central Minnesota. Neighborhood factors are standardized and paired with measures of prenatal-care adequacy and pregnancy-risk indicators in a series of multivariate linear models to explore their effect on birth outcomes. Analyses adjust for maternal demographics and clinical risks to identify independent neighborhood effects. A privacy-preserving, tract-linked dataset is also created to help local partners target high-need prevention areas.

The Effect Of Weather On The Value Of Home Attributes, Jason Beck

Atlantic Marketing Association Proceedings

No abstract provided.

Uneven Ranks: Geographic Deepening Of The All-Volunteer Force, Christine Hogestyn

Master in Public Policy Theses

Who is enlisting in Fiscal Year 2025, and what state-level characteristics are associated with military enlistment rates, service selection, and recruit quality? This study documents the geographic landscape of U.S. military accessions during a period of recruiting recovery, filling a gap in the literature by providing a current, empirical description of who enlists and from where in today’s All-Volunteer Force. Drawing on personnel data from the Department of War, the U.S. Census and Bureau of Labor Statistics estimates, and a federal dataset of military installations, I analyze 203,987 new accessions across the Army, Navy, Air Force, and Marine Corps from …

Big Game License Fees—Seeking Price Optimization Equity, Chip E. Miller, Brian Vander Naald

Atlantic Marketing Association Proceedings

No abstract provided.

Nfts And The Value Of Provenance On Digital Art, Jessica Scheld, Pamila Dembla, Stef Nicovich

Atlantic Marketing Association Proceedings

No abstract provided.

Economic Drivers Of International Migration To Türkiye: A Regional Comparison Study, Bekir Gündoğmuş, Musa Bayir, Ahmed Yusuf Sarihan

Makara Human Behavior Studies in Asia

This study investigates the macroeconomic determinants of registered international migration to Türkiye by employing panel data regression techniques at the NUTS-2 regional level for the period 2016–2022. The results reveal that per capita income, employment, and the share of industry, services, and construction sectors in total production have a statistically significant and positive impact on migration inflows, while inflation exhibits a negative effect. However, agricultural production proportion and export performance do not appear to significantly influence regional migrant preferences. Causality tests further support the existence of both bidirectional and unidirectional relationships between economic indicators and migration. The findings underscore the …

A De-Dollarizing World: How Sanctions Catalyze De-Dollarizing Efforts In Russia And China, Karina S. Amaach

Senior Theses

For nearly a century, the United States has occupied the title as the world’s leading superpower nation. Such power has granted the US great economic responsibility, particularly highlighting the dollar’s dominant role as the international reserve and trade currency. However, the rise of competing powers– most notably China and Russia– have posed great threats to this continued economic dominance of the United States. This thesis examines how U.S. economic sanctions– often described as America’s greatest financial tool– have inadvertently motivated de-dollarization efforts led by these two nations. Drawing on interdisciplinary scholarship in foreign affairs, international political economy, and intergovernmental financial …