Other Economics Commons^™

Testosterone Is Positively Associated With Coronary Artery Calcium In A Low Cardiovascular Disease Risk Population, Benjamin Trumble, Jacob Negrey, Stephanie V. Koebele, Randall C. Thompson, L. Samuel Wann, Adel H. Allam, Bret Beheim, M. Linda Sutherland, James D. Sutherland, Daniel Eid Rodriguez, David E. Michalik, Chris J. Rowan, Guido P. Lombardi, Angela R. Garcia, Daniel K. Cummings, Edmond Seabright, Sarah Alami, Thomas S. Kraft, Paul L. Hooper, Kenneth Buetow, Andrei Irimia, Margaret Gatz, Jonathan Stieglitz, Michael D. Gurven, Hillard Kaplan, Gregory S. Thomas, Tsimane Health And Life History Project Teams

ESI Publications

Background

In industrialized populations, low male testosterone is associated with higher rates of cardiovascular mortality. However, coronary risk factors like obesity impact both testosterone and cardiovascular outcomes. Here, we assess the role of endogenous testosterone on coronary artery calcium in an active subsistence population with relatively low testosterone levels, low cardiovascular risk and low coronary artery calcium scores.

Methodology

In this cross-sectional community-based study, 719 Tsimane forager-horticulturalists in the Bolivian Amazon aged 40+ years underwent computed tomography (49.8% male, mean age 57.6 years).

Results

Coronary artery calcium levels were low; 84.5% had no coronary artery calcium. Zero-inflated negative binomial models …

The Effect Of Wage Proposals On Efficiency And Income Distribution☆, Lara Ezquerra, Joaquín Gómez-Miñambres, Natalia Jiminez, Praveen Kujal

ESI Publications

Pre-play non-binding communication in organizations is prevalent. We study the implications of pre-play, private and public, wage proposals in labor markets. To that end, we develop a theoretical model from which we derive certain hypothesis that we test through a laboratory experiment. In the baseline, that depicts a typical labor market interaction, the employer makes a wage offer to the worker who may then accept or reject it. In subsequent treatments, workers, moving first, make private, non-binding, wage proposals to the employer. In a following treatment, the proposals are made public. Our findings suggest that both private and public wage …

Suggested Versus Extended Gifts: How Alternative Market Institutions Mitigate Moral Hazard, Weiwei Zheng, Jason Shachat, Daniel Houser

ESI Working Papers

Gift exchange can partially mitigate supply-side moral hazard, even in anonymous market interactions. In a market where quality is not fully contractable, the amount that a price exceeds the market-clearing level for the lowest quality is a gift from the buyer. We show that the gift formation process, inextricably linked with a market institution’s price formation process, greatly influences the size and effectiveness of the gift. When the market institution dictates that prices are formed by bids posted by buyers, any gift is one extended to the seller. When the market institution dictates that prices are formed by offers posted …

Moving Beyond Transactional Coursework To Enhance Student Success In University Classes, Mark R. Reavis, Kuldeep Singh

Journal of Educational Research and Practice

The goal of teaching is student success, but defining success can be daunting. A rudimentary description of student success involves academic achievement and students’ attainment of a high level of satisfaction with their educational process. The pinnacle of student success is transformational learning. Transformational learning is ultimately evidenced by knowledge-based, responsible, and autonomous thinking. Student engagement enhances student success. As a result, course design and assignment design are critical. The purpose of this paper is to demonstrate how an online discussion assignment can be used to enhance student engagement and increase student success in a university class. The assignment presented …

Asymmetric Shocks In Contests: Theory And Experiment, Jian Song, Daniel Houser

ESI Publications

Under optimal tournament design, equilibrium effort is invariant to the shape of the mean-zero additive stochastic component, often referred to as a “shock” or “noise”. We report data from laboratory experiments providing the first test of this prediction. Consistent with theory, we find that average effort does not significantly differ between a negatively skewed and uniform shock distribution. In addition, we test a second theoretical prediction that, in winner tournaments, when the shock distribution is asymmetric as in our design, one should exert minimum effort whenever one's competitors are exerting above equilibrium effort. With a symmetric shock distribution as in …

Casar Public Lecture: Mapping The Journeys Of Enslaved People From Zanzibar To The Gulf, The Prince Alwaleed Center For American Studies And Research Casar

Performances, Events, and Presentations

Part of the CASAR October lecture series and in partnership with AUC’s history department, this event featured guest scholar John Thabiti Willis, an associate professor of history at Clarendon College in Northfield Minnesota. For the last ten years Thabiti has dedicated himself to the study of African contributions to the history and heritage of pearling in the Gulf. In this event, AUC had the honor of listening to how Thabiti uses geographical information systems (GIS) to organize primary evidence gathered from manumission statements to analyze enslaved peoples journeys from Zanzibar to British political agents in Bahrain, Muscat, and Sharjah between …

Match Stability With A Costly And Flexible Number Of Positions, James Gilmore, David Porter

ESI Working Papers

One of the objectives of two-sided matching mechanisms is to pair two groups of agents such that there is no incentive for pair deviation. The outcome of a match can significantly impact participants. While much of the existing research in this field addresses the matching with fixed quotas, this is not always applicable. We introduce the concept of slot stability, recognizing the potential motivation for organizations to modify their quotas after the match. We propose an algorithm designed to create stable and slot stable matches by employing flexible, endogenous quotas to address this issue.

Religion And Growth, Sascha O. Becker, Jared Rubin, Ludger Woessmann

ESI Working Papers

We use the elements of a macroeconomic production function—physical capital, human capital, labor, and technology—together with standard growth models to frame the role of religion in economic growth. Unifying a growing literature, we argue that religion can enhance or impinge upon economic growth through all four elements because it shapes individual preferences, societal norms, and institutions. Religion affects physical capital accumulation by influencing thrift and financial development. It affects human capital through both religious and secular education. It affects population and labor by influencing work effort, fertility, and the demographic transition. And it affects total factor productivity by constraining or …

What Did Adam Smith Mean? The Semantics Of The Opening Key Principles In The Wealth Of Nations, Bart J. Wilson, Gian Marco Farese

ESI Publications

We present a semantic and textual analysis of the first two chapters of the Wealth of Nations to elucidate the meaning of several of Adam Smith’s key ideas. Using the methodology of the Natural Semantic Metalanguage, we produce semantic explications of some of Adam Smith’s fundamental principles of economics phrased in simple and cross-translatable words. The extracts from the original text function as textual evidence and conceptual reference for the explications we present. We demonstrate that: (i) by reducing the principles as conceived by Smith to their core meanings, it is possible to resolve some interpretive ambiguities for general readers …

Against The Tide: Indigenous Knowledge And Education For Humanization, Arturo Rodriguez, Kevin Russel Magill

Journal of Multicultural Affairs

Power brokers and their market economies enforce education on a global level. According to the United Nations, the effects of global neoliberal capitalism cause human rights violations in all parts of the world, yet democratic countries scoff at these findings (Pogge, 2002 & 2005). People of the world continue to believe that tying minoritized students to existing structures and ensuring enculturation is the best possible outcome for all involved (Suárez-Orozco & Suárez-Orozco, 2015). That is, minoritized children are educated to ensure first-world countries produce a minimally educated and willing labor force. In this paper we argue the following: 1) power …

Western Australian Regional Development Trust Annual Report 2022-23, West Australian Regional Development Trust

Western Australian Regional Development Trust Annual Reports

The Trust is an independent statutory advisory body to the Minister, established under the Royalties for Regions Act 2009 (Act).

The functions of the Trust are to provide advice and make recommendations to the Minister:

• for the purposes of sections 5(2) and 9(1) of the Act; and
• on any other matter relating to the operation of the Fund that is referred to it by the Minister.

In addition to its monitoring and advisory role, the Trust also works to engage and enhance relationships with key regional stakeholders and influencers to promote greater collaboration and innovation in the delivery of regional …

The Impact Of Vaccinations And Chronic Disease On Covid Death Rates, James L. Doti

Economics Faculty Articles and Research

This study presents a theoretical and empirical regression model to measure the efficacy of vaccinations in reducing COVID death rates across states over the 3/10/21 to 12/28/22 period. During that period, it was estimated that the availability of vaccinations resulted in a reduction of 427,000 COVID deaths in the nation. To arrive at that estimate, other covariants were held constant. In particular, it was found that chronic disease should be included as an explanatory variable to arrive at unbiased measures of the efficacy of vaccinations in reducing deaths. In addition, the percentage of people over the age of 65 was …

Metapopulation Dynamics Of Sars-Cov-2 Transmission In A Small-Scale Amazonian Society, Thomas Kraft, Edmond Seabright, Sarah Alami, Samuel M. Jenness, Paul L. Hooper, Bret Beheim, Helen Davis, Daniel K. Cummings, Daniel Eid Rodriguez, Maguin Gutierrez Cayuba, Emily J. Miner, Xavier De Lamballerie, Lucia Inchauste, Stéphane Priet, Benjamin Trumble, Jonathan Stieglitz, Hillard Kaplan, Michael Gurven

ESI Publications

The severity of infectious disease outbreaks is governed by patterns of human contact, which vary by geography, social organization, mobility, access to technology and healthcare, economic development, and culture. Whereas globalized societies and urban centers exhibit characteristics that can heighten vulnerability to pandemics, small-scale subsistence societies occupying remote, rural areas may be buffered. Accordingly, voluntary collective isolation has been proposed as one strategy to mitigate the impacts of COVID-19 and other pandemics on small-scale Indigenous populations with minimal access to healthcare infrastructure. To assess the vulnerability of such populations and the viability of interventions such as voluntary collective isolation, we …

Apolipoprotein-Ε4 Is Associated With Higher Fecundity In A Natural Fertility Population, Benjamin Trumble, Mia Charifson, Tom Kraft, Angela R. Garcia, Daniel K. Cummings, Paul L. Hooper, Amanda J. Lea, Daniel Eid Rodriguez, Stephanie V. Koebele, Kenneth Buetow, Bret Beheim, Riana Minocher, Maguin Gutierrez, Gregory S. Thomas, Margaret Gatz, Jonathan Stieglitz, Caleb E. Finch, Hillard Kaplan, Michael Gurven

ESI Publications

In many populations, the apolipoprotein-ε4 (APOE-ε4) allele increases the risk for several chronic diseases of aging, including dementia and cardiovascular disease; despite these harmful effects at later ages, the APOE-ε4 allele remains prevalent. We assess the impact of APOE-ε4 on fertility and its proximate determinants (age at first reproduction, interbirth interval) among the Tsimane, a natural fertility population of forager-horticulturalists. Among 795 women aged 13 to 90 (20% APOE-ε4 carriers), those with at least one APOE-ε4 allele had 0.3 to 0.5 more children than (ε3/ε3) …

The Past, Present, And Future Of The Latino Paradox, Sheila Flores

University Honors Theses

The Latino/Hispanic paradox has left scholars and researchers puzzled as to how Latinos, despite facing socioeconomic challenges, show better health outcomes when compared to other racial/ethnic groups. The emergence of this phenomenon can be traced back to the 1980s/1990s when researchers first noticed Latinos in the United States having characteristics of lower mortality rates and improved health compared with non-Hispanic whites despite having a better socioeconomic status. Performing a literature review of scholars analyzing the past, present, and future of the Latino Paradox will thus allow for an understanding of its origin, current state, and the possible potential trajectories that …

An Analysis Of Capital Flow To Construct An Economic Typology In A Comparative Case Study Of Three Ancient Cities: Third Kingdom Of Ur, New Kingdom Of Thebes, And Classical Athens, Darrell Gremillion

Dissertations

This dissertation adds to the literature on Economic Development through the development of a Typology of Economy applicable to the earliest cities. Understanding the evolution of these early economies is a crucial step in understanding the past to assist in the establishment of policies for the future. This is especially important in the light of the environmental and sustainability challenges facing the globe today.

The cities in the comparative case study include the Third Dynasty of Ur in Mesopotamia, the New Kingdom of Thebes in Egypt, and Classical Athens in Greece. These cities are chosen for the case study for …

Group Identity And The Formation Of Conditional Social Preferences Among Chinese Youth, Timo Heinrich, Jason Shachat, Qinjuan Wan

ESI Working Papers

Con icts between local and migrant populations have been ubiquitous in modern China. We examine the potential for longer-term amelioration of this conflict through successive generations and intergroup contact within integrated schooling. We adopt the perspective that in- and out-group biased behaviour structurally arises from group conditional social preferences. We assess the group-conditional social preferences of local and migrant children in a second-tier Chinese city, Xiamen, and the extent these preferences correlate with those of their parents. We find that local students have a greater likelihood of Egalitarian preferences and a lower likelihood of Generous preferences when allocating with locals …

Black And Battered: The Impact Of The Violence Against Women Act On Women Of Color, Antonia D. Adams

Senior Theses

Domestic violence is the intentional act of someone exerting control to harm another person. Domestic violence can impact individuals of all genders, ethnicities, and backgrounds. However, domestic violence has a disproportionate impact on Black women over their white counterparts. By analyzing raw SLED data, as well as peer-reviewed articles and personal interviews, this paper will explore whether the Violence Against Women Act (VAWA) helped Black women, or if it failed to protect them. The hypothesis is that VAWA did not address the unique needs that Black women faced in domestic violence. Due to the myriad of circumstances that Black women …

Energetic Costs Of Testosterone In Two Subsistence Populations, Benjamin C. Trumble, Herman Pontzer, Jonathan Stieglitz, Daniel K. Cummings, Brian Wood, Melissa Emery Thompson, David Raichlen, Bret Beheim, Gandhi Yetish, Hillard Kaplan, Michael Gurven

ESI Publications

Objective

Testosterone plays a role in mediating energetic trade-offs between growth, maintenance, and reproduction. Investments in a high testosterone phenotype trade-off against other functions, particularly survival-enhancing immune function and cellular repair; thus only individuals in good condition can maintain both a high testosterone phenotype and somatic maintenance. While these effects are observed in experimental manipulations, they are difficult to demonstrate in free-living animals, particularly in humans. We hypothesize that individuals with higher testosterone will have higher energetic expenditures than those with lower testosterone.

Methods

Total energetic expenditure (TEE) was quantified using doubly labeled water in n = 40 Tsimane forager-horticulturalists …

Discrete Rule Learning In First Price Auctions, Jason Shachat, Lijia Wei

ESI Working Papers

We present a hidden Markov model of discrete strategic heterogeneity and learning in first price independent private values auctions. The model includes three latent bidding rules: constant absolute mark-up, constant percentage mark-up, and strategic best response. Rule switching probabilities depend upon a bidder's past auction outcomes and a myopic reinforcement learning dynamic. We apply this model to a new experiment that varies the number of bidders and the auction frame between forward and reverse. We find the proportion of bidders following constant absolute mark-up increases with experience, and is higher when the number of bidders is large. The primary driver …