Other Economics Commons^™

Low Mineral Density Of A Weight-Bearing Bone Among Adult Women In A High Fertility Population, Jonathan Stieglitz, Bret Beheim, Benjamin C. Trumble, Felicia C. Madimenos, Hillard Kaplan, Michael Gurven

ESI Publications

Evolutionary theories of aging posit that greater reproductive effort causes somatic decline given a fundamental trade-off between investing energy in reproduction and repair. Few studies in high fertility human populations support this hypothesis, and problems of phenotypic correlation can obscure the expected trade-off between reproduction and somatic condition. This cross-sectional study investigates whether greater reproductive effort is associated with reduced calcaneal bone mineral density (BMD) among female Tsimane forager-farmers of lowland Bolivia. We also investigate whether female Tsimane BMD values are lower than sex- and age-matched US reference values, despite the fact that Tsimane engage in higher physical activity levels …

A Review On Literatures Of Zakat Between 2003-2013, Fuadah Johari, Muhammad Ridhwan Ab. Aziz, Ahmad Fahme Mohd Ali

Library Philosophy and Practice (e-journal)

The objective of this article is to analysis the related literatures on zakat between 2003 until 2013. The methodology of this article is through descriptive research based on document-analysis on previous articles and literatures on zakat between 2003 until 2013. Data from each articles related in this field were collected and statistically analyzed using the Statistical Product & Service Solution (SPSS) software. This study looked at several variables which include authorship patterns, number of articles published, research approach, subject and gender of the author. The general finding of this article shows that the zakat issues are among the most discussed …

The Natural Resource Curse In Sub-Saharan Africa: Transparency And International Initiatives, Meaza Zerihun Demissie

Dissertations

The Sub-Saharan Africa (SSA) region has become a classic case of the resource-curse phenomenon characterized by the abundance of natural resources, low economic development, and misuse of natural resources. Economic-development experts debate ways to overcome or avoid the resource curse to advance SSA countries into developed countries. Only one natural resource-rich country in the region, Botswana, has succeeded in becoming an upper middle-income country using its natural resources, making the possibility of replication of this achievement difficult. The literature aligns in the belief that the economic and political well-being of resource-rich nations depends highly on the actors involved. National and …

Financial Literacy And Financial Inclusion Of Women In Rural Rajasthan, Emily Levi-D'Ancona

Independent Study Project (ISP) Collection

Financial inclusion is an important step in development, as access to finances can help the poor build money and lift themselves out of poverty. In many parts of the developing world, and especially in India, microfinance is seen as a new approach to fighting poverty by bringing financial services, including low-interest loans, to the poor so that they can afford to start a business or invest and eventually gain self-sufficiency – in other words, a method of financial inclusion for the poor. However, microfinance in India cannot sufficiently reach the poor populations, especially those in rural India, and many of …

Top Of The Order: Modeling The Optimal Locations Of Minor League Baseball Teams, W. Coleman Conley

Undergraduate Economic Review

Over the last twenty-five years, minor league baseball franchises have defined firm mobility. Revisiting the work of Michael C. Davis (2006), I construct a logistic regression model to predict which cities house minor league baseball teams. Six variables are tested for inclusion in the model, including population, income level, the number of major-league professional sports teams in a city, five-year population change, and distance from the closest professional team. Based on the model's predicted probabilities, cities are ranked in order of highest probability of having a team at each of the different levels from Class A to Class AAA.

Should You Do A Doctorate? The Changing Returns To Postgraduate Qualifications, Sven Hoeling, Lewis Gudgeon, Felix Hagemeister

Undergraduate Economic Review

Higher education in the UK has experienced radical change over the last two decades. The change has been driven by a number of factors, not least New Labour’s policy to send 50% of school leavers to university. The increased supply of graduates has weakened a first degree’s ability to function as a signal to employers, resulting in many individuals pursuing postgraduate study to make themselves more competitive. This paper aims to show the changing returns to Bachelor, Master and Doctoral degrees for the period 1997 to 2013 and recognises the increasing importance of Ph.D. graduates in the upcoming years.

Leadership In An Egalitarian Society, Christopher Von Rueden, Michael Gurven, Hillard Kaplan, Jonathan Stieglitz

ESI Publications

Leadership is instrumental to resolution of collective action dilemmas, particularly in large, heterogeneous groups. Less is known about the characteristics or effectiveness of leadership in small-scale, homogeneous, and relatively egalitarian societies, in which humans have spent most of our existence. Among Tsimane’ forager-horticulturalists of Bolivia, we (1) assess traits of elected leaders under experimental and naturalistic conditions and (2) test whether leaders impact collective action outcomes. We find that elected leaders are physically strong and have more kin and other exchange partners. Their ranks on physical dominance, kin support, and trustworthiness predict how well their groups perform, but only where …

Political Influence Associates With Cortisol And Health Among Egalitarian Forager-Farmers, Christopher Von Rueden, Benjamin C. Trumble, Melissa Emery Thompson, Jonathan Stieglitz, Paul L. Hooper, Aaron D. Blackwell, Hillard Kaplan, Michael Gurven

ESI Publications

Background and objectives: Low social status increases risk of disease due, in part, to the psychosocial stress that accompanies feeling subordinate or poor. Previous studies report that chronic stress and chronically elevated cortisol can impair cardiovascular and immune function. We test whether lower status is more benign in small-scale, relatively egalitarian societies, where leaders lack coercive authority and there is minimal material wealth to contest.

Methodology: Among Tsimane’ forager-horticulturalists of lowland Bolivia, we compare informal political influence among men with urinary cortisol, immune activation (innate and acquired), and morbidity as assessed during routine medical exams.

Results: After …

Cost Share Adjustment Processes For Cooperative Group Decisions About Shared Goods: A Design Approach, Edna T. Loehman, Richard Kiser, Stephen Rassenti

Economics Faculty Articles and Research

For group decision about shared goods, the nature of the shared good and how its cost is to be shared among group members must be determined. Complexity arises from heterogeneity in preferences and endowments and nonlinear cost. To facilitate group decision, this paper proposes special type of group decision support system, a cost share adjustment process (CSAP), in which cost shares are adjusted iteratively via algorithmic rules until unanimity is reached, ideally producing a socially optimal, cost feasible, and fair outcome. In contrast to public good literature, our designs apply for situations of nonlinear cost, with economies of scale and …

Analysis And Evaluation On Cost And Benefit Of Vts, Weiwei Xie

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Study On The Positive Measures To Eliminate Substandard Ships In China, Jianling Ma

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Clean Cooking: The Value Of Clean Cookstoves In Ethiopia, Shannon H. Kooser

Journal of Environmental and Resource Economics at Colby

This project investigates how demographic differences affect the way people value clean cookstoves in Ethiopia. Previous research indicates that traditional cooking methods are harmful to human health as well as the environment, as people need to cut down trees or collect other biomass sources for fuel. However, clean stoves can solve both these environmental and health problems, as well as provide a sustainable method for cooking and heating in developing countries. Using choice survey data, this study examines Ethiopian households’ valuations of different characteristics of stoves, including durability, fuel reduction, smoke reduction and the amount of time they may save …

Atherosclerosis: A Longue Durée Approach, L. Samuel Wann, Randall C. Thompson, Adel H. Allam, Caleb E. Finch, Albert Zink, Hillard Kaplan, Bruno Frohlich, Guido P. Lombardi, M. Linda Sutherland, James D. Sutherland, Lucia Watson, Samantha L. Cox, Michael I. Miyamoto, Alexandre F. R. Stewart, Jagat Narula, Gregory S. Thomas

ESI Publications

Fernand Braudel popularized the longue durée approach to scholarly investigation in the mid-20th century. The longue durée approach can be loosely translated to mean “look for the big picture, synthesize data collected using all available methodology over the long periods of time to identify fundamental principles, rather than becoming preoccupied with isolated observations.” Braudel, a historian and economist, emphasized observation of enduring historical structures and analysis of long-term, panoramic economic trends rather than concentrating on detailed descriptions of particular events or individuals. He also urged the use of insight gained from many scholarly disciplines to identify the essential underpinnings of …

Genomic Correlates Of Atherosclerosis In Ancient Humans, Albert Zink, L. Samuel Wann, Randall C. Thompson, Andreas Keller, Frank Maixner, Adel H. Allam, Caleb E. Finch, Bruno Frohlich, Hillard Kaplan, Guido P. Lombardi, M. Linda Sutherland, James D. Sutherland, Lucia Watson, Samantha L. Cox, Michael I. Miyamoto, Jagat Narula, Alexandre F. R. Stewart, Gregory S. Thomas, Johannes Krause

ESI Publications

Paleogenetics offers a unique opportunity to study human evolution, population dynamics, and disease evolution in situ. Although histologic and computed x-ray tomographic investigations of ancient mummies have clearly shown that atherosclerosis has been present in humans for more than 5,000 years, limited data are available on the presence of genetic predisposition for cardiovascular disease in ancient human populations. In a previous whole-genome study of the Tyrolean Iceman, a 5,300-year-old glacier mummy from the Alps, an increased risk for coronary heart disease was detected. The Iceman’s genome revealed several single nucleotide polymorphisms that are linked with cardiovascular disease in genome-wide association …

Why Did Ancient People Have Atherosclerosis?: From Autopsies To Computed Tomography To Potential Causes, Gregory S. Thomas, L. Samuel Wann, Adel H. Allam, Randall C. Thompson, David E. Michalik, M. Linda Sutherland, James D. Sutherland, Guido P. Lombardi, Lucia Watson, Samantha L. Cox, Clide M. Valladolid, Gomaa Abd El-Maksoud, Muhammad Al-Tohamy Soliman, Ibrahem Badr, Abd El-Halim Nur El-Din, Emily M. Clarke, Ian G. Thomas, Michael I. Miyamoto, Hillard Kaplan, Bruno Frohlich, Jagat Narula, Alexandre F. R. Stewart, Albert Zink, Caleb E. Finch

ESI Publications

Computed tomographic findings of atherosclerosis in the ancient cultures of Egypt, Peru, the American Southwest and the Aleutian Islands challenge our understanding of the fundamental causes of atherosclerosis. Could these findings be true? Is so, what traditional risk factors might be present in these cultures that could explain this apparent paradox? The recent computed tomographic findings are consistent with multiple autopsy studies dating as far back as 1852 that demonstrate calcific atherosclerosis in ancient Egyptians and Peruvians. A nontraditional cause of atherosclerosis that could explain this burden of atherosclerosis is the microbial and parasitic inflammatory burden likely to be present …

Funerary Artifacts, Social Status, And Atherosclerosis In Ancient Peruvian Mummy Bundles, M. Linda Sutherland, Samantha L. Cox, Guido P. Lombardi, Lucia Watson, Clide M. Valladolid, Caleb E. Finch, Albert Zink, Bruno Frohlich, Hillard Kaplan, David E. Michalik, Michael I. Miyamoto, Adel H. Allam, Randall C. Thompson, L. Samuel Wann, Jagat Narula, Gregory S. Thomas, James D. Sutherland

ESI Publications

Background: Evidence of atherosclerotic plaques in ancient populations has led to the reconsideration of risk factors for heart disease and of the common belief that it is a disease of modern times.

Methods: Fifty-one wrapped mummy bundles excavated from the sites of Huallamarca, Pedreros, and Rinconada La Molina from the Puruchuco Museum collection in Lima, Peru, were scanned using computed tomography to investigate the presence of atherosclerosis. Funerary artifacts contained within the undisturbed mummy bundles were analyzed as an attempt to infer the social status of the individuals to correlate social status with evidence of heart disease in …

How Portable Is Level-0 Behavior? A Test Of Level-K Theory In Games With Non-Neutral Frames, Shaun Hargreaves Heap, David Rojo Arjona, Robert Sugden

Economics Faculty Articles and Research

We test the portability of level‐0 assumptions in level‐k theory in an experimental investigation of behavior in Coordination, Discoordination, and Hide and Seek games with common, non‐neutral frames. Assuming that level‐0 behavior depends only on the frame, we derive hypotheses that are independent of prior assumptions about salience. Those hypotheses are not confirmed. Our findings contrast with previous research which has fitted parameterized level‐k models to Hide and Seek data. We show that, as a criterion of successful explanation, the existence of a plausible model that replicates the main patterns in these data has a high probability of …

Typhoons And Lower Birth Weight In The Philippines, Sarah Morrow

Master's Theses

Do typhoons impact birth weights of infants exposed to a typhoon while in utero? This research exploits the exogeneity and randomness of typhoons in the Philippines to estimate the impact of typhoon exposure as determined by wind speed on birth weights. Using four waves of the Demographic and Health Survey (DHS) data from the Philippines combined with temperature, precipitation, and rainfall data from the Philippines, I can empirically estimate the impact of a 1 m/s increase in wind speed on birth weights. I find that for certain subgroups of the population, specifically children born to mothers with primary education or …

Impact Of Mobile Money Usage On Microenterprise Evidence From Zambia, Laura I. Frederick

Master's Theses

Mobile money payment systems have spread rapidly around the world in the last decade. Given developing countries are powered by informal economies that traditionally have had limited access to information technologies, mobile payment system infrastructure has the potential to transform the way microenterprises conduct business. Through a pilot study in Livingstone, Zambia, I examine the effect of mobile money usage on microenterprise profits. I employ an instrumental variable strategy using the type of mobile operator as the instrument to address the selection bias in adoption, as mobile money services are available to everyone. In this urban context, I find initial …

Matrilineal Asset Inheritance, Female Bargaining Power, And Household Welfare In Malawi, Nicholas T. Garcia

Master's Theses

Matrilineal inheritance practices in Malawi exogenously determine female land holdings at the time of marriage, allowing for the identification of the effect of increased female bargaining power on household consumption decisions. I use the matrilineal ethnicity of the head of household as an instrument for the share of total household land inherited by the female head or male head’s wife. I find that child’s height-for-age decreases with female assets, and evidence suggesting increased consumption from households’ own production. Since the food basket from own consumption is high in carbs but not nutritious, long-term child health suffers despite receiving more resources …