Ectopic Adipose Tissue In Subsistence Populations With Minimal Coronary Disease, Large Left Atria, And Very Low Rates Of Atrial Fibrillation,
2025
University of Missouri - Kansas City
Ectopic Adipose Tissue In Subsistence Populations With Minimal Coronary Disease, Large Left Atria, And Very Low Rates Of Atrial Fibrillation, Randall C. Thompson, Benjamin C. Trumble, Daniel K. Cummings, Angela D. Neunuebel, Paul L. Hooper, Samuel Wann, Adel H. Allam, Frances Neunuebel, Benjamin D. Gans, Samantha I. King, Edmond Seabright, Caleb E. Finch, Margaret Gatz, Kenneth Buetow, Michael I. Miyamoto, Guido P. Lombardi, M. Linda Sutherland, James D. Sutherland, Christopher J. Ward, Madeleine J. Lee, Ashna Mahadev, Daniel Eid Rodriguez, David E. Michalik, Chris J. Rowan, Tianyu Cao, Jonathan Stieglitz, Cameron M. Quick, Gregory S. Thomas, Jagat Narula, Damini Dey, Michael Gurven, Hillard Kaplan
ESI Publications
Background
Greater deposits of epicardial adipose tissue are associated with atrial fibrillation and coronary disease, but have not been studied in subsistence populations.Methods
We performed CT imaging to measure coronary artery and thoracic aortic calcium (CAC, TAC), epicardial fat thickness (EFT), liver density, and left atrial (LA) anteroposterior diameter and, using a deep learning-enabled software program, epicardial and thoracic fat volume (EFV, TFV), in two remote Amerindian subsistence populations with minimal coronary artery calcification and virtually no atrial fibrillation. We compared 893 adult Tsimane (mean age 58.3±10.5 y, 51.6% male), 440 Moseten (55.9±10.4 y, 53.6% male) to 955 U.S. …
Essays In Applied Microeconomics,
2025
Southern Methodist University
Essays In Applied Microeconomics, William Cunningham
Economics Theses and Dissertations
This dissertation contributes to three interconnected areas of economic research: microeconomics, behavioral economics, and urban economics. Each chapter examines how individual decision-making processes may produce more pronounced economic patterns, while highlighting the role of psychological factors and spatial considerations in shaping outcomes. Chapter 1 studies the causes and dynamics of segregation in US neighborhoods. A conditional instrumental variables estimator allows for unbiased estimation of preferences for past neighborhood minority shares by addressing endogeneity concerns present in my theoretical model. I use estimated preference parameters to simulate neighborhood population dynamics for Texas. I regress measures of racial animus and xenophobia on …
My Performance Over Yours: Earned Entitlement, Performance, Luck, And Deservingness In Giving,
2025
Middlesex University
My Performance Over Yours: Earned Entitlement, Performance, Luck, And Deservingness In Giving, Andrej Angelovski, Praveen Kujal, Jose M. Ortiz
ESI Working Papers
We study how three widely discussed cues—source of income (merit vs luck), own performance, and information about others’ work status and performance—shape redistribution. Prior to the dictator game, all 306 dictators and most of the 306 recipients complete the same real-effort matrix task in an online experiment that would yield either $4 or $1 for the dictators. In the Performance treatment the dictator’s payoff is based on their performance; in Luck, it is assigned by a 50-50 draw. We find that: (i) Earned entitlement is prevalent for high-performing dictators: they keep more for themselves; (ii) Earned entitlement is conditional …
Criminal Behavior Responses To Changing Penalties: Estimating The Impact Of Felony Theft Threshold Changes,
2025
Clemson University
Criminal Behavior Responses To Changing Penalties: Estimating The Impact Of Felony Theft Threshold Changes, Ezra R. Simmons
All Theses
This study estimates how criminal behavior changes in response to shifts in felony theft thresholds, contributing to broader evidence on the deterrent effects of criminal penalties. Using detailed incident-level crime reports, this study applies econometric techniques to evaluate how offenders responded to reduced penalties. Analyzed within is California’s Proposition 47, which raised the felony threshold for theft-related offenses from $450 to $950. The results show a significant increase in low-level shoplifting (approximately 21%) and more substantial rises (approximately 24% to 30%) in crimes within the threshold overlap ($450 to $950). Additionally, the value stolen in crimes below the $450 threshold …
The Impact Of Green Finance, Trade Openness, And Fossil Fuel Subsidies On Renewable Energy Consumption: A Global And Asia-Pacific Perspective,
2025
State University of Malang, Malang, East Java, 65145, Indonesia
The Impact Of Green Finance, Trade Openness, And Fossil Fuel Subsidies On Renewable Energy Consumption: A Global And Asia-Pacific Perspective, Alya Ryanti Fitjriyah, Inayati Nuraini Dwiputri
Journal of Environmental Science and Sustainable Development
Fossil fuels are the major source of global emissions, with the Asia-Pacific region being the climate biggest polluter. Despite the global efforts to shift to cleaner energy, fossil fuels still dominate the energy mix. Therefore, renewable energy adoption needs to be encouraged more to improve economic sustainability. The Glasgow Climate Pact emphasises the importance of helping developing countries in addressing the climate change issue through financial support, capacity building, and technology transfer. Hence, this study examines the influence of green finance, open trade, and fossil fuel subsidies on renewable energy adoption in 38 countries from 2017 to 2023. By using …
Indirect Genetic Effects Among Neighbors Promote Cooperation And Accelerate Adaptation In A Small-Scale Human Society,
2025
University of Zurich
Indirect Genetic Effects Among Neighbors Promote Cooperation And Accelerate Adaptation In A Small-Scale Human Society, Jordan S. Martin, Bret Beheim, Michael Gurven, Hillard Kaplan, Jonathan Stieglitz, Benjamin C. Trumble, Paul Hooper, Daniel K. Cummings, Daniel Eid Rodriguez, Adrian V. Jaeggi
ESI Publications
Explaining the rapid evolution of human cooperation and its role in our species’ biodemographic success remains a major evolutionary puzzle. To address this challenge, we tested a social drive hypothesis, which predicts that social plasticity and social selection in human groups cause indirect genetic effects that accelerate the adaptation of fitness, promoting population growth via feedback between the environmental causes and evolutionary consequences of cooperation. Using Bayesian multilevel models to analyze fertility data from a small-scale society, we demonstrate that density- and frequency-dependent indirect genetic effects on fitness promote the evolution of cooperation among neighboring women, increasing the rate of …
Physical Activity Mediates Age Differences In Cognition Among Tsimane Forager-Horticulturalists,
2025
University of Southern California
Physical Activity Mediates Age Differences In Cognition Among Tsimane Forager-Horticulturalists, Phoebe E. Imms, Nikhil N. Chaudhari, Daniel Cummings, Daniel Eid Rodriguez, Giuseppe Barisano, Paul L. Hooper, M. Katherine Sayre, Edmond Seabright, Randall C. Thompson, M. Linda Sutherland, James D. Sutherland, Benjamin C. Trumble, Michael Gurven, Jonathan Stieglitz, Caleb E. Finch, Hillard S. Kaplan, Wendy J. Mack, Margaret Gatz, Andrei Irimia
ESI Publications
Background: The Tsimane and Moseten of the Bolivian Amazon are highly physically active and exhibit low rates of cognitive impairment and brain atrophy.
Methods: We use structural equation modelling to examine how their physical activity levels mediate the relationship between (1) age and cognition, and (2) age and cognition via brain volume (BV).
Results: Tsimane males (n = 305, mean ± SD age = 59.94 ± 9.68) and Tsimane females (n = 265, mean ± SD age = 59.28 ± 9.79) exhibit significantly higher levels of physical activity than Moseten males (n = 106, mean ± SD …
Higher Blood Lipid Levels After The Transition To Menopause In Two Forager-Horticulturalist Populations,
2025
Arizona State University
Higher Blood Lipid Levels After The Transition To Menopause In Two Forager-Horticulturalist Populations, M. J. Getz, J. E. Aronoff, C. L. Jenkins, S. Ghafoor, J. Vazquez, N. T. Appel, M. Gatz, Daniel K. Cummings, Paul L. Hooper, B. Beheim, K. H. Buetow, C. E. Finch, G. S. Thomas, J. Stieglitz, M. Gurven, Hillard Kaplan, B. C. Trumble
ESI Publications
Background: Reproduction affects health and longevity among females across the life course. While significant focus has been devoted to the role of menarche, menopause remains understudied. Most menopause research is conducted in industrialized populations, where the risk of cardiovascular diseases increases progressively during the menopausal transition.
Methodology: Weworked with the Tsimane, Indigenous Bolivian forager-farmers with physically active lifestyles, and the Moseten, genetically and culturally related horticulturalists experiencing greater market integration. We assessed relationships between menopause status and lipid biomarkers (HDL, LDL, non-HDL, total cholesterol, triglycerides, and apolipoprotein-B). Using linear mixed-effects models, in an all-age sample of n = …
Money And Social Exclusion In Networks,
2025
University of Bologna
Money And Social Exclusion In Networks, Maria Bigoni, Gabriele Camera, Edoardo Gallo
ESI Working Papers
Globalization offers unparalleled opportunities to expand welfare through cooperation across large networks of unrelated individuals. Social exclusion – permanent or temporary – and monetary exchange are institutions that in theory can incentivize cooperation. In an experiment, we evaluate their relative performance and interaction in anonymous networks of different sizes. Permanent social exclusion (ostracism) reduces long-run economic potential by leading to sparse networks. Monetary exchange and temporary social exclusion perform similarly well in small networks. In large networks, however, monetary exchange is the only institution that promotes full cooperation by crowding out ostracism and keeping the network complete. An insight is …
Childhood Skeletal Lesions Common In Prehistory Are Present In Living Forager-Farmers And Predict Adult Markers Of Immune Function,
2025
University of Colorado, Boulder
Childhood Skeletal Lesions Common In Prehistory Are Present In Living Forager-Farmers And Predict Adult Markers Of Immune Function, Amy S. Anderson, Aaron Blackwell, M. Linda Sutherland, Thomas Kraft, James Sutherland, Bret Beheim, Daniel K. Cummings, Suhail Ghafoor, Paul L. Hooper, Daniel Eid Rodriguez, Andrei Irimia, Margaret Gatz, Wendy Mack, Chris Rowan, Michael Miyamoto, Kenneth Buetow, Caleb Finch, L. Samuel Wann, Adel Allam, Randall C. Thompson, Gregory Thomas, Hillard Kaplan, Jonathan Stieglitz, Benjamin Trumble, Michael D. Gurven
ESI Publications
Porous cranial lesions (cribra cranii and cribra orbitalia) are widely used by archaeologists as skeletal markers of poor child health. However, their use has not been validated with systematic data from contemporary populations, where there has been little evidence of these lesions or their health relevance. Using 375 in vivo computed tomography scans from a cohort-representative sample of adults aged 40+ years from the Bolivian Amazon, among food-limited, high-mortality forager-farmers, we identified cribra cranii on 46 (12.3%) and cribra orbitalia on 23 (6%). Cribra orbitalia was associated with several hallmarks of compromised immune function, including fewer B cells, fewer naïve …
Arterial Stiffness In Heart-Healthy Indigenous Tsimane Forager-Horticulturalists,
2025
University of California, Santa Barbara
Arterial Stiffness In Heart-Healthy Indigenous Tsimane Forager-Horticulturalists, Tianyu Cao, Edhitt Cortez Linares, Raul Quispe Gutierrez, Daniel Eid Rodriguez, Jesus Bani Cuata, Michael I. Miyamoto, Christopher Von Rueden, Daniel K. Cummings, Paul L. Hooper, Benjamin C. Trumble, Jonathan Stieglitz, Randall C. Thompson, Gregory S. Thomas, Hillard S. Kaplan, Daniel A. Duprez, David R. Jacobs Jr., Michael Gurven
ESI Publications
Background
Little is known about arterial stiffness in rural subsistence populations that experience few cardiovascular risk factors. We conducted a cross‐sectional study comparing 3 arterial stiffness metrics among Tsimane forager‐horticulturalists with 2 representative US cohorts.Methods
Arterial elasticity (the inverse of stiffness) markers C1 (large artery elasticity) and C2 (small artery elasticity) were measured using a tonometry device among 490 Tsimane adults (mean age, 51.2±10.1 years; 55% women), and compared with 6294 multiethnic US adults (mean age, 62.0±10.2 years; 52% women) from MESA (Multi‐Ethnic Study of Atherosclerosis). Carotid‐femoral pulse wave velocity was assessed using the foot‐to‐foot method in a smaller …
Energy Expenditure And Obesity Across The Economic Spectrum,
2025
Duke University
Energy Expenditure And Obesity Across The Economic Spectrum, Amanda Mcgrosky, Amy Luke, Leonore Arab, Kweku Bedu-Addo, Alberto G. Bonomi, Pascal Bovet, Soren Brage, Maciej S. Buchowski, Nancy Butte, Stefan G. Camps, Regina Casper, Daniel K. Cummings, Sai Krupa Das, Sanjoy Deb, Lara R. Dugas, Ulf Ekelund, Terrence Forrester, Barry W. Fudge, Melanie Gillingham, Annelies H. Goris, Michael Gurven, Catherine Hambly, Annemiek Joosen, Peter T. Katzmarzyk, Kitty P. Kempen, William E. Kraus, Wantanee Kriengsinyos, Rebecca Kuriyan, Robert F. Kushner, Estelle V. Lambert, Christel L. Larsson, William R. Leonard, Nader Lessan, Marie Löf, Corby K. Martin, Anine C. Medin, Marian L. Neuhouser, Kirsi H. Pietilainen, Guy Plasqui, Ross L. Prentice, Susan B. Racette, David A. Raichlen, Eric Ravussin, Leanne Redman, Rebecca M. Reynolds, Eric B. Rimm, Susan Roberts, Asher Y. Rosinger, Mary H. Samuels, Srishti Sinha, J. Josh Snodgrass, Eric Stice, Ricardo Uauy, Samuel S. Urlacher, Jeanine A. Verbunt, Bruce Wolfe, Brian Wood, Xueying Zhang, Alexia J. Murphy-Alford, Cornelia J. Loechl, Jennifer Rood, Hiroyuki Sagayama, Dale A. Schoeller, Klaas R. Westerterp, William W. Wong, Yosuke Yamada, John R. Speakman, Herman Pontzer, The Iaea Dlw Database Consortium
ESI Publications
Global economic development has been associated with an increased prevalence of obesity and related health problems. Increased caloric intake and reduced energy expenditure are both cited as development-related contributors to the obesity crisis, but their relative importance remains unresolved. Here, we examine energy expenditure and two measures of obesity (body fat percentage and body mass index, BMI) for 4,213 adults from 34 populations across six continents and a wide range of lifestyles and economies, including hunter-gatherer, pastoralist, farming, and industrialized populations. Economic development was positively associated with greater body mass, BMI, and body fat, but also with greater total, basal, …
The Impact Of Insufficient Sleep On Dietary Choices And Physical Activity Behaviors: Evidence From A Randomized Cross-Over Trial,
2025
Chapman University
The Impact Of Insufficient Sleep On Dietary Choices And Physical Activity Behaviors: Evidence From A Randomized Cross-Over Trial, David L. Dickinson, Naomi Kakoschke, Sean P. A. Drummond
ESI Publications
The current study aimed to identify how manipulated sleep restriction affects dietary choices and physical activity (PA). Young adults were administered one week of well-rested sleep levels (WR: 8–9 h/night) and sleep-restriction (SR: 5–6 h/night) in their (naturalistic) at-home setting, using a randomized cross-over design. Participants made consequential bids for snacks/beverages following SR and WR in an auction task. Other primary outcome measures included daily self-reported dietary intake and actigraphy-measured PA. Multivariate regression analyses examined main and moderator impacts of SR on primary outcome measures. In total, 118 treatment participants completed the study (M = 20 years old, n = …
Politics And Institutional Change: The Water Commission Act Of 1913,
2025
Carleton College
Politics And Institutional Change: The Water Commission Act Of 1913, Mark Kanazawa
Department of Economics Working Paper Series
Economists have long argued that increasing resource scarcity can lead to more clearly defined individual property rights, but the precise mechanism whereby this occurs remains unclear to this day. This paper documents the role of politics in shaping the creation of individual property rights within the context of appropriative water law in early 20th century California, finding evidence of both party ideology and interest group influence in establishing a new system for administering appropriative water rights.
General Equilibrium Markets As Distributed Computational Systems,
2025
Chapman University
General Equilibrium Markets As Distributed Computational Systems, Steven Gjerstad
ESI Working Papers
One principal capability of markets is the coordination of information distributed among market participants who typically have competing incentives. Despite distributed information and conflicting incentives, competition among market participants often leads to socially desirable resource allocation. In this sense a market is a distributed multi-agent mechanism that, in effect, finds an optimal solution to a computational problem that is not known to any individual market participant. The purpose of this paper is to demonstrate that capacity of markets by defining automated agents that interact with one another in a distributed system that implements a socially desirable resource allocation. In this …
Var Analysis: Association Between Non-Performing Loan, Housing Price, Economic Indicators, And Mortgage,
2025
Politeknik Keuangan Negara STAN, Indonesia
Var Analysis: Association Between Non-Performing Loan, Housing Price, Economic Indicators, And Mortgage, Yulifar Amin Gultom, Masruri Muchtar, Pardomuan Robinson Sihombing
Jurnal Akuntansi dan Keuangan Indonesia
Background: The economic crisis from 2008 to 2009 was due to the collapse of the housing price bubble, which increased the default rate or non-performing loans of mortgages. Much research on non-performing loans compared to property price and economic indicators has been done in other countries, but not in Indonesia. This research is modified to suit the housing market in Indonesia, aiming to investigate causality relationships between non-performing loans, residential property price index, gross domestic product, mortgages, and credit interest rates. It also analyzes the impulse response function and variance decomposition of each variable, focusing on non-performing loans to show …
The Effects Of Sleep Restriction And Time Of Day On Food-Specific Impulsivity, Approach-Avoidance Bias And Delay Discounting,
2025
CSIRO, Australia
The Effects Of Sleep Restriction And Time Of Day On Food-Specific Impulsivity, Approach-Avoidance Bias And Delay Discounting, Naomi Kakoschke, David L. Dickinson, Sean P. A. Drummond
ESI Publications
Background:
Insufficient sleep and circadian timing are both linked with obesity, primarily via unhealthy food choice, yet the cognitive mechanisms underpinning such relationships remain unclear.
Methods:
Across two studies, we implemented an ecologically valid within-subjects at-home protocol. Study 1 (n = 118) involved a within-subjects examination of how sleep restriction (SR) versus well-rested (WR) sleep levels affect choices in a food-based approach-avoidance task (AAT) and go–no/go (GNG) task, a food liking task, a food-choice task, a psychomotor vigilance task (PVT), and a monetary choice task. Study 2 (n = 119) involved examining choices in the same set of …
Adam Smith’S Modeling Of Agents: Roots Versus Consequences Of Action,
2025
Chapman University
Adam Smith’S Modeling Of Agents: Roots Versus Consequences Of Action, Vernon L. Smith, Sabiou M. Inoua
ESI Publications
Adam Smith founded his investigations of economic and social exchanges on the roots of human action (sympathy, need, self-interest), unlike the utilitarians (Hume and the neoclassical economists), who centered theirs on the consequences of human action (pleasure, utility of outcome). This distinction is key to understanding the contrast between the two schools of thought, as we emphasize in this chapter.
Preferences Or Confounders? Persistent Gender Gap In Competition Across Four Continents,
2025
Universitat de Barcelona
Preferences Or Confounders? Persistent Gender Gap In Competition Across Four Continents, Natalia I. Valdez-Gonzalez, Adriana Gaviria, Antonio M. Espin
ESI Working Papers
The gender gap in willingness to compete is thought to underlie enduring inequalities in education, career choice, and labor market outcomes. Yet it remains unclear whether the gap reflects true preference differences or results from confounding factors such as task stereotypes, overconfidence, or risk aversion. We test gender differences in competition entry across eight pre-registered studies in seven countries spanning four continents (Dominican Republic, Ivory Coast, El Salvador, Madagascar, Spain, The Philippines, and Uruguay; total n = 1,833), using an experimental design that systematically minimizes these confounds: (i) based on a non-male-stereotyped task (the Reading the Mind in the Eyes …
Price Coordination Under List Pricing And Discounting: Experimental Evidence,
2025
Chapman University
Price Coordination Under List Pricing And Discounting: Experimental Evidence, Roberto Hernán González, Praveen Kujal, Miguel Angel Ropero-García, Román Fossati
ESI Working Papers
List-pricing and discounting is common in both retail and wholesale markets. Its interpretation amongst competition authorities varies from being procompetitive to collusion facilitating. We experimentally test how list pricing and discounting impact prices in a capacity constrained Bertrand-Edgeworth duopoly with symmetric and asymmetric firms facing constant marginal costs. We find that, relative to the symmetric baseline experiments, list pricing and discounting generate higher equilibrium prices for (symmetric) firms. Prices in the asymmetric-list price duopoly are also higher, however, the effect is much smaller than under symmetry. The introduction of asymmetry results in higher prices. The smaller firms gain more from …
