Below you may find selected publications from the Economic Science Institute at Chapman University.

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Submissions from 2022

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A Universally Translatable Explication of Adam Smith's Famous Proposition on "The Extent of the Market", Bart J. Wilson and Gian Marco Farese

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Human Milk Oligosaccharide Compositions Illustrate Global Variations in Early Nutrition, Anita Vinjamuri, Jasmine C. C. Davis, Sarah M. Totten, Lauren D. Wu, Laura D. Klein, Melanie Martin, EA Quinn, Brooke Scelza, Alicia Breakey, Michael Gurven, Grazyna Jasienska, Hillard Kaplan, Claudia Valeggia, Katie Hinde, Jennifer T. Smilowitz, Robin M. Bernstein, Angela M. Zivkovic, Michael J. Barratt, Jeffrey I. Gordon, Mark A. Underwood, David A. Mills, J. Bruce German, and Carlito B. Lebrilla

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Laboratory Experiments of Land Assembly Without Eminent Domain, Mark DeSantis, Matthew W. McCarter, and Abel Winn

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Natural Selection of Immune and Metabolic Genes Associated with Health in Two Lowland Bolivian Populations, Amanda J. Lea, Angela Garcia, Jesusa Arevalo, Julien F. Ayroles, Kenneth Buetow, Steve W. Cole, Daniel Eid Rodriguez, Maguin Gutierrez, Heather M. Highland, Paul L. Hooper, Anne Justice, Thomas Kraft, Kari E. North, Jonathan Stieglitz, Hillard Kaplan, Benjamin C. Trumble, and Michael Gurven

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Prevalence of Dementia and Mild Cognitive Impairment in Indigenous Bolivian Forager-Horticulturalists, Margaret Gatz, Wendy J. Mack, Helena C. Chui, E. Meng Law, Giuseppe Barisano, M. Linda Sutherland, James D. Sutherland, Daniel Eid Rodriguez, Raul Quispe Gutierrez, Juan Copajira Adrian, Jesus Bani Cuata, Amy R. Borenstein, Ellen E. Waters, Andrei Irimia, Christopher J. Rowan, L. Samuel Wann, Adel H. Allam, Randall C. Thompson, Michael I. Miyamoto, David E. Michalik, Daniel K. Cummings, Edmond Seabright, Angela R. Garcia, Paul L. Hooper, Thomas S. Kraft, Caleb E. Finch, Gregory S. Thomas, Jonathan Stieglitz, Benjamin C. Trumble, Michael D. Gurven, and Hillard Kaplan

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Review of Religion and the Rise of Capitalism, Jared Rubin

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The Primacy of Property; or, the Subordination of Property Rights, Bart J. Wilson

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When Do Security Markets Aggregate Dispersed Information?, Brice Corgnet, Cary Deck, Mark DeSantis, Kyle Hampton, and Erik O. Kimbrough

Submissions from 2021

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An Experimental Test of Fundraising Appeals Targeting Donor and Recipient Benefits, John A. List, James J. Murphy, Michael K. Price, and Alexander G. James

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An Investigation of Health Insurance Policy and Behavior in a Virtual Environment, J. Dustin Tracy, Kevin A. James, Hillard Kaplan, and Stephen Rassenti

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Anything for a Cheerio: Brown Capuchins (Sapajus [Cebus] apella) Consistently Coordinate in an Assurance Game for Unequal Payoffs, Lauren M. Robinson, Mayte Martínez, Kelly L. Leverett, Mattea S. Rossettie, Bart J. Wilson, and Sarah F. Brosnan

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Do Truth-telling Oaths Improve Honesty in Crowd-working?, Nicolas Jacquemet, Alexander G. James, Stéphane Luchini, James J. Murphy, and Jason F. Shogren

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Do Wealth and Inequality Associate with Health in a Small-Scale Subsistence Society?, Adrian V. Jaeggi, Aaron D. Blackwell, Christopher von Rueden, Benjamin C. Trumble, Jonathan Stieglitz, Angela R. Garcia, Thomas S. Kraft, Bret A. Beheim, Paul L. Hooper, Hillard Kaplan, and Michael Gurven

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Helminth Infection is Associated with Dampened Cytokine Responses to Viral and Bacterial Stimulations in Tsimane Forager-Horticulturalists, India A. Schneider-Crease, Aaron D. Blackwell, Thomas S. Kraft, Melissa Emery Thompson, Ivan Maldonado Suarez, Daniel K. Cummings, Jonathan Stieglitz, Noah Snyder-Mackler, Michael Gurven, Hillard Kaplan, and Benjamin C. Trumble

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High Prevalence of Sternal Foramina in Indigenous Bolivians Compared to Midwest Americans and Indigenous North Americans (Sternal Foramina in Indigenous Bolivians), Benjamin D. Gans, Angela D. Neuneubel, Leah J. Umbarger, Benjamin C. Trumble, Daniel K. Cummings, L. Samuel Wann, Kyle R. Lehenbauer, Ashna Mahadev, Daniel Eid Rodriguez, David E. Michalik, Chris J. Rowan, Caleb E. Finch, M. Linda Sutherland, James D. Sutherland, Adel H. Allam, Jonathan Stieglitz, Michael Gurven, Hillard S. Kaplan, Gregory S. Thomas, and Randall C. Thompson

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Identifying Bedrest Using Waist-worn Triaxial Accelerometers in Preschool Children, J. Dustin Tracy, Thomas Donnelly, Evan C. Sommer, William J. Heerman, Shari L. Barkin, and Maciej S. Buchowski

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Negative Shocks Predict Change in Cognitive Function and Preferences: Assessing the Negative Affect and Stress Hypothesis, Francesco Bogliacino, Cristiano Codagnone, Felipe Montealegre, Frans Folkvord, Camilo Gómez, Rafael Charris, Giovanni Liva, Francisco Lupiáñez-Villanueva, and Giuseppe A. Veltri

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Prosocial Option Increases Women’s Entry Into Competition, Alessandra Cassar and Mary L. Rigdon

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Restarting “Normal” Life after Covid-19 and the Lockdown: Evidence from Spain, the United Kingdom, and Italy, Cristiano Codagnone, Francesco Bogliacino, Camilo Gómez, Frans Folkvord, Giovanni Liva, Rafael Charris, Felipe Montealegre, Francisco Lupiañez Villanueva, and Giuseppe A. Veltri

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The Impact of Public Health Messaging and Personal Experience on the Acceptance of Mask Wearing During the COVID-19 Pandemic, Todd L. Cherry, Alexander G. James, and James J. Murphy

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Very Low Prevalence and Incidence of Atrial Fibrillation among Bolivian Forager-Farmers, Christopher J. Rowan, Michael A. Eskander, Edmond Seabright, Daniel Eid Rodriguez, Edhitt Cortez Linares, Raul Quispe Gutierrez, Juan Copajira Adrian, Daniel Cummings, Bret Beheim, Kirsten Tolstrup, Abinash Achrekar, Thomas Kraft, David E. Michalik, Michael I. Miyamoto, Adel H. Allam, L. Samuel Wann, Jagat Narula, Benjamin C. Trumble, Jonathan Stieglitz, Randall C. Thompson, Gregory S. Thomas, Hillard S. Kaplan, and Michael D. Gurven

Submissions from 2020

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A Simple, Ecologically Rational Rule for Settling Found Property Disputes, Bart J. Wilson

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Asset Price Volatility and Price Extrema, Carey Caginalp and Gunduz Caginalp

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Consistent Differences in a Virtual World Model of Ape Societies, Bart J. Wilson, Sarah F. Brosnan, Elizabeth V. Lonsdorf, and Crickette M. Sanz

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Deliberation Enhances the Confirmation Bias in Politics, David L. Dickinson

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Evidence for Height and Immune Function Trade-offs Among Preadolescents in a High Pathogen Population, Angela R. Garcia, Aaron Blackwell, Benjamin C. Trumble, Jonathan Stieglitz, Hillard Kaplan, and Michael Gurven

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Gender, Stereotypes, and Trust in Communication, Eric Schniter and Timothy W. Shields

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Immune Function During Pregnancy Varies Between Ecologically Distinct Populations, Carmen Hové, Benjamin C. Trumble, Amy S. Anderson, Jonathan Stieglitz, Hillard Kaplan, Michael Gurven, and Aaron Blackwell

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Multiplex Network Ties and the Spatial Diffusion of Radical Innovations: Martin Luther’s Leadership in the Early Reformation, Sascha O. Becker, Yuan Hsiao, Steven Pfaff, and Jared Rubin

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News-Driven Expectations and Volatility Clustering, Sabiou M. Inoua

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Paternal Provisioning Results from Ecological Change, Ingela Alger, Paul L. Hooper, Donald Cox, Jonathan Stieglitz, and Hillard S. Kaplan

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Productivity Loss Associated with Functional Disability in a Contemporary Small-scale Subsistence Population, Jonathan Stieglitz, Paul L. Hooper, Benjamin C. Trumble, Hillard Kaplan, and Michael D. Gurven

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Quantitative Description of the Pastoral Economy of Western Tuvan Nomads, Paul L. Hooper

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Rapidly Declining Body Temperature in a Tropical Human Population, Michael Gurven, Thomas Kraft, Sarah Alami, Juan Copajira Adrian, Edhitt Cortez Linares, Daniel Cummings, Daniel Eid Rodriguez, Paul L. Hooper, Adrian Jaeggi, Raul Quispe Gutierrez, Ivan Maldonado Suarez, Edmond Seabright, Hillard Kaplan, Jonathan Stieglitz, and Benjamin C. Trumble

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The Effect of Sleep on Public Good Contributions and Punishment: Experimental Evidence, Jeremy Clark and David L. Dickinson

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The Role of Dispersal and School Attendance on Reproductive Dynamics in Small, Dispersed Populations: Choyeros of Baja California Sur, Mexico, Shane Macfarlan, Ryan Schacht, Eric Schniter, Juan José Garcia, Diego Guevara Beltran, and Jory Lerback

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Voluntary Collective Isolation as a Best Response to COVID-19 for Indigenous Populations? A Case Study and Protocol from the Bolivian Amazon, Hillard Kaplan, Benjamin C. Trumble, Jonathan Stieglitz, Roberta Mendez Mamany, Maguin Gutierrez Cayuba, Leonardina Maito Moye Lic, Sarah Alami, Thomas Kraft, Raul Quispe Gutierrez, Juan Copajira, Randall C. Thompson, Gregory S. Thomas, David E. Michalik, Daniel Eid Rodriguez, and Michael Gurven

Submissions from 2019

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A Dynamical Systems Approach to Cryptocurrency Stability, Carey Caginalp

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Commentary: Reflections on Decision Research and Its Empiricism: Four Comments Inspired by Harrison, Nathaniel T. Wilcox

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Computed Tomography Shows High Fracture Prevalence Among Physically Active Forager-Horticulturalists With High Fertility, Jonathan Stieglitz, Benjamin C. Trumble, HORUS Study Team, Caleb E. Finch, Dong Li, Matthew J. Budoff, Hillard Kaplan, and Michael D. Gurven

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Establishing Cryptocurrency Equilibria Through Game Theory, Carey Caginalp and Gunduz Caginalp

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Kinship Ties Across the Lifespan in Human Communities, Jeremy Koster, Dieter Lukas, David Nolin, Eleanor Power, Alexandra Alvergne, Ruth Mace, Cody T. Ross, Karen Kramer, Russell Graves, Mark Caudell, Shane Macfarlan, Eric Schniter, Robert Quinlan, Siobhan Mattison, Adam Reynolds, Chun Yi-Sim, and Eric Massengill

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Methodological Differences Cannot Explain Associations Between Health, Anthropometrics, and Excess Resting Metabolic Rate, Michael Gurven, Benjamin Trumble, Jonathan Stieglitz, Dan Cummings, Hillard Kaplan, Aaron D. Blackwell, Gandhi Yetish, and Herman Pontzer

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Nonbinding Goals in Teams: A Real Effort Coordination Experiment, James Fan and Joaquin Gómez-Miñambres

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Nonlinear Price Dynamics of S&P 100 Stocks, Gunduz Caginalp and Mark DeSantis

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On the Merit of Equal Pay: Performance Manipulation and Incentive Setting, Brice Corgnet, Ludivine Martin, Peguy Ndodjang, and Angela Sutan

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The Dynamics of Men's Cooperation and Social Status in a Small-Scale Society, Christopher von Rueden, Daniel Redhead, Rick O'Gorman, Hillard Kaplan, and Michael Gurven

Submissions from 2018

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A Theory of Focal Points in 2x2 Games, Jonathan W. Leland and Mark Schneider

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Coordination and Evolutionary Dynamics: When are Evolutionary Models Reliable?, Daniel Graydon Stephenson

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Correction to: 'Greater Wealth Inequality, Less Polygyny: Rethinking the Polygyny Threshold Model', Cody T. Ross, Monique Borgerhoff Mulder, Seung-Yun Oh, Samuel Bowles, Bret Beheim, John Bunce, Mark Caudell, Gregory Clark, Heidi Colleran, Carmen Cortez, Patricia Draper, Russell D. Greaves, Michael Gurven, Thomas Headland, Janet Headland, Kim Hill, Barry Hewlett, Hillard Kaplan, Jeremy Koster, Karen Kramer, Frank Marlowe, Richard McElereath, David Nolin, Marsha Quinlan, Robert Quinlan, Caissa Revilla-Minaya, Brooke Scelza, Ryan Schacht, Mary Shenk, Ray Uehara, Eckart Voland, Kai Willführ, Bruce Winterhalder, John Ziker, and Christopher von Rueden

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Do Negative Random Shocks Affect Trust and Trustworthiness?, Hernán Bejerano, Joris Gillet, and Ismael Rodriguez-Lara

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Do Negative Random Shocks Affect Trust and Trustworthiness?, Hernán Bejerano, Joris Gillet, and Ismael Rodriguez-Lara

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Goal Setting in the Principal-Agent Model: Weak Incentives for Strong Performance, Brice Corgnet, Joaquín Gómez-Miñambres, and Roberto Hernán-González

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Greater Wealth Inequality, Less Polygyny: Rethinking the Polygyny Threshold Model, Cody T. Ross, Monique Borgerhoff Mulder, Seung-Yun Oh, Samuel Bowles, Bret Beheim, John Bunce, Mark Caudell, Gregory Clark, Heidi Colleran, Carmen Cortez, Patricia Draper, Russell D. Greaves, Michael Gurven, Thomas Headland, Janet Headland, Kim Hill, Barry Hewlett, Hillard Kaplan, Jeremy Koster, Karen Kramer, Frank Marlowe, Richard McElreath, David Nolin, Marsha Quinlan, Robert Quinlan, Caissa Revilla-Minaya, Brooke Scelza, Ryan Schacht, Mary Shenk, Ray Uehara, Eckart Voland, Kai Willführ, Bruce Winterhalder, John Ziker, and Christopher von Rueden

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Land Assembly with Taxes, Not Takings, Mark DeSantis, Matthew W. McCarter, and Abel Winn

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Low Perceived Control Over Health is Associated With Lower Treatment Uptake in a High Mortality Population of Bolivian Forager-Farmers, Sarah Alami, Jonathan Stieglitz, Hillard Kaplan, and Michael Gurven

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Marital Violence and Fertility in a Relatively Egalitarian High-Fertility Population, Jonathan Stieglitz, Benjamin C. Trumble, Hillard Kaplan, and Michael Gurven

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Models of Intragroup Conflict in Management: A Literature Review, Matthew W. McCarter, Kimberly A. Wade-Benzoni, Darcy Fudge Kamal, H. Min Bang, Steven J. Hyde, and Reshma Maredia

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Parental Hormones are Associated With Crop Loss and Family Sickness Following Catastrophic Flooding in Lowland Bolivia, Benjamin C. Trumble, Jonathan Stieglitz, Adrian Jaeggi, Bret Beheim, Matthew Schwartz, Edmond Seabright, Daniel Cummings, Hillard Kaplan, and Michael Gurven

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Sex Differences in Political Leadership in An Egalitarian Society, Christopher von Rueden, Sarah Alami, Hillard Kaplan, and Michael Gurven

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Sleep Variability and Nighttime Activity among Tsimane Forager‐Horticulturalists, Gandhi Yetish, Hillard Kaplan, and Michael Gurven

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Testing the Boundaries of the Double Auction: The Effects of Complete Information and Market Power, Erik O. Kimbrough

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Variation Among Populations in the Immune Protein Composition of Mother's Milk Reflects Subsistence Pattern, Laura D. Klein, Jincui Huang, Elizabeth A. Quinn, Melanie A. Martin, Alicia A. Breakey, Michael Gurven, Hillard Kaplan, Claudia Valeggia, Grazyna Jasienska, Brooke Scelza, Carlito B. Lebrilla, and Katie Hinde

Submissions from 2017

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A Study of the Triggers of Conflict and Emotional Reactions, Michael Caldera, Michael T. McBride, Matthew W. McCarter, and Roman M. Sheremeta

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Cognitive Performance Across the Life Course of Bolivian Forager-Farmers With Limited Schooling, Michael Gurven, Eric Fuerstenberg, Benjamin C. Trumble, Jonathan Stieglitz, Bret Beheim, Helen Davis, and Hillard Kaplan

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Collaboration and the Development of Experimental Economics: A Personal Perspective, Vernon L. Smith

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Comparing a Risky Choice in the Field and Across Lab Procedures, Zuzana Brokesova, Cary Deck, and Jana Peliova

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Coronary Atherosclerosis in Indigenous South American Tsimane: A Cross-Sectional Cohort Study, Hillard Kaplan, Randall C. Thompson, Benjamin C. Trumble, L. Samuel Wann, Adel H. Allam, Bret Beheim, Bruno Frohlich, M. Linda Sutherland, James D. Sutherland, Jonathan Stieglitz, Daniel Eid Rodriguez, David E. Michalik, Chris J. Rowan, Guido P. Lombardi, Ram Bedi, Angela R. Garcia, James K. Min, Jagat Narula, Caleb E. Finch, Michael Gurven, and Gregory S. Thomas

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Deception and Reception: The Behavior of Information Providers and Users, Roman M. Sheremeta and Timothy W. Shields

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Deliberation Favours Social Efficiency by Making People Disregard Their Relative Shares: Evidence from USA and India, Valerie Capraro, Brice Corgnet, Antonio M. Espín, and Roberto Hernán-González

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Emotional Calibration of Self-Control, Joaquín Gómez-Miñambres and Eric Schniter

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Emotions and Behavior Regulation in Decision Dilemmas, Joaquín Gómez-Miñambres and Eric Schniter

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Sentiments, Conduct, and Trust in the Laboratory, Vernon Smith and Bart J. Wilson

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Equilibrium Play in Voluntary Ultimatum Games: Beneficence Cannot Be Extorted, Vernon L. Smith and Bart J. Wilson

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Experimenting with Contests for Experimentation, Cary Deck and Erik O. Kimbrough

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Historical Cost and Conservatism Are Joint Adaptations That Help Identify Opportunity Cost, Sudipta Basu and Gregory B. Waymire

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Horticultural Activity Predicts Later Localized Limb Status in a Contemporary Pre-Industrial Population, Jonathan Stieglitz, Benjamin C. Trumble, Hillard Kaplan, and Michael Gurven

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How We Think about Economics, Bart J. Wilson

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Human and Monkey Responses in a Symmetric Game of Conflict with Asymmetric Equilibria, Sarah F. Brosnan, Sara A. Price, Kelly Leverett, Laurent Prétôt, Michael Beran, and Bart J. Wilson

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Human Grooming in Comparative Perspective: People in Six Small-Scale Societies Groom Less But Socialize Just as Much as Expected for a Typical Primate, Adrian V. Jaeggi, Karen Kramer, Raymond Hames, Evan J. Kiely, Cristina Gomes, Hillard Kaplan, and Michael Gurven

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Information Transmission and the Oral Tradition: Evidence of a Late-Life Service Niche for Tsimane Amerindians, Eric Schniter, Nathaniel T. Wilcox, Bret A. Beheim, Hillard S. Kaplan, and Michael Gurven

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Informed Entry in Auctions, Diego Aycinena, Hernán Bejerano, and Lucas Rentschler

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It Monitoring: A Real Effort Experiment, Brice Corgnet, Ludivine Martin, Peguy Ndodjang, and Angela Sutan

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Mutual and Exclusive: Dyadic Sources of Trust in Interorganizational Exchange, Bill McEvily, Akbar Zaheer, and Darcy Fudge Kamal

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On Private Governance, Bart J. Wilson

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Sleep Restriction and Circadian Effects on Social Decisions, David L. Dickinson and Todd McElroy

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Smile, Dictator, You’re on Camera, Joy A. Buchanan, Matthew K. McMahon, Matthew Simpson, and Bart J. Wilson

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The Optimal Defense of Networks of Targets, Dan Kovenock and Brian Roberson

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The Tsimane Health and Life History Project: Integrating Anthropology and Biomedicine, Michael Gurven, Jonathan Stieglitz, Benjamin C. Trumble, Aaron D. Blackwell, Bret Beheim, Helen Davis, Hillard Kaplan, and Paul L. Hooper

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The Welfare Effects of Civil Forfeiture, Michael Preciado and Bart J. Wilson

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Trust Me, Even Against Your Instinct, I Have Reflected Upon My Decision, Antonio Cabrales, Antonio M. Espín, Praveen Kujal, and Stephen J. Rassenti

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Who’s Holding Out? An Experimental Study of the Benefits and Burdens of Eminent Domain, Abel Winn and Matthew W. McCarter

Submissions from 2016

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An Epigenetic Clock Analysis of Race/Ethnicity, Sex, and Coronary Heart Disease, Steve Horvath, Michael Gurven, Morgan E. Levine, Benjamin C. Trumble, Hillard Kaplan, Hooman Allayee, Beate R. Ritz, Brian Chen, Ake T. Lu, Tammy M. Rickabaugh, Beth D. Jamieson, Dianjianyi Sun, Shengxu Li, Wei Chen, Lluis Quintana-Murci, Maud Fagny, Michael S. Kobor, Philip S. Tsao, Alexander P. Reiner, Kerstin L. Edlefsen, Devin Absher, and Themistocles L. Assimes

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An Experimental Investigation of Procurement Auctions with Asymmetric Sellers, John Aloysius, Cary A. Deck, Li Hao, and Ryan French

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An Experimental Investigation of Simultaneous Multi-battle Contests with Complementarities, Cary Deck, Sudipta Sarangi, and Matt Wiser

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Angels and Demons: Using Behavioral Types in a Real-Effort Moral Dilemma to Identify Expert Traits, Hernan Bejerano, Ellen P. Green, and Stephen Rassenti

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Apolipoprotein E4 is Associated With Improved Cognitive Function in Amazonian Forager-Horticulturalists With a High Parasite Burden, Benjamin C. Trumble, Jonathan Stieglitz, Aaron D. Blackwell, Hooman Allayee, Bret Beheim, Caleb E. Finch, Michael Gurven, and Hillard Kaplan

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Arousal and Economic Decision Making, Salar Jahedi, Cary Deck, and Dan Ariely

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Associations Between Male Testosterone and Immune Function in a Pathogenically Stressed Forager-Horticultural Population, Benjamin C. Trumble, Aaron D. Blackwell, Jonathan Stieglitz, Melissa Emery Thompson, Ivan Maldonado Suarez, Hillard Kaplan, and Michael Gurven

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Benefit to Another at Cost to Self, Terence C. Burnham