Economics Commons^™

Reinforcement Learning, Modeling Markets, And Professional Basketball Free Agency, Jacob Cohn

Computational and Data Sciences (PhD) Dissertations

This dissertation presents a reinforcement learning-based approach to modeling and optimizing decision-making in professional basketball free agency and related economic environments. A Markov Decision Process (MDP) framework is introduced to capture the strategic interactions of NBA teams bidding for free agents under budgetary and roster constraints. To address computational scalability challenges, a reinforcement learning (RL) environment is developed, leveraging Proximal Policy Optimization (PPO) to approximate optimal policies for team decision-making.

Empirical results demonstrate that the RL agent successfully learns strategic bidding behavior that aligns with dynamic programming benchmarks in simplified settings while scaling effectively to larger, intractable environments. The study …

2nd Place Contest Entry: Aquí Y Ahora: The Role Of Us Spanish-Language Tv News In Financial Vulnerability, Cintya Felix

Kevin and Tam Ross Undergraduate Research Prize

This is Cintya Felix's submission for the 2025 Kevin and Tam Ross Undergraduate Research Prize, which won second place. It contains their essay on using library resources, their bibliography, and a summary of their research project on Spanish-language media’s impact on financial attitudes.

Cintya is a third-year student at Chapman University, majoring in Political Science and Spanish. Their faculty mentor is Dr. Ann Gordon.

2nd Place Research Paper: Aquí Y Ahora: The Role Of Us Spanish-Language Tv News In Financial Vulnerability, Cintya Felix

Kevin and Tam Ross Undergraduate Research Prize

In today’s world, the news we watch often does more than inform us; it shapes our perceptions of security and the future. In this paper, I examine the extent to which an individual’s consumption of particular Spanish-speaking TV news channels contribute to their sense of financial vulnerability. Using an original data set of responses to the questions in the 2020 American National Election Studies (ANES), I find a moderately strong relationship between the television news channel Aquí y Ahora, and the degree to which they are worried about their financial situation. While it is true that various factors such …

Ruchir Sharma: What Went Wrong With Capitalism, Vernon L. Smith

ESI Publications

A review of Ruchir Sharma's What Went Wrong With Capitalism.

Religion And Economic Development: Past, Present, And Future, Sascha O. Becker, Amma Panin, Steven J. Pfaff, Jared Rubin

ESI Working Papers

This chapter examines the role of religion in economic development, both historically and today. Religion's influence varies globally, with high religiosity in countries like Pakistan and low rates in China. Despite declines in some Western countries, religion remains influential worldwide, with projected growth in Muslim populations due to higher fertility rates. Religion continues to shape societal norms and institutions, such as education and politics, even after its direct influence fades. The chapter explores how religious institutions and norms have impacted economic outcomes, focusing on both persistence and decline. It also examines cultural transmission, institutional entrenchment, networks, and religious competition as …

Religion, Culture, And Politics, Jared Rubin

ESI Working Papers

This chapter presents a conceptual framework for understanding the interaction of religion, ideology, and politics. The framework’s key insights are: i) culture and ideology provide a shared mental framework for interpreting the world; ii) ideology is malleable, and it can be used to justify a wide set of empirical realities in a manner that is consistent with the prevailing mental framework; iii) religion is particularly adept at shaping this mental framework because it attempts to explain the unknown; iv) because co-religionists share a mental framework that depends on a (religious) interpretation of events, religions are particularly likely to be co-opted …

Ecological Influences On Informal Property Rights: Experimental Evidence, Erik O. Kimbrough

Economics Faculty Articles and Research

This paper explores the possibility that informal property right systems evolve unique features as a function of the characteristics of the resources over which they are established. We develop an experimental environment that allows us to test this hypothesis by comparing the emergence of property in (virtual) land when resource yields are either high- or low-variance and renewable or non-renewable. Previous research suggests that high-variance resources may lead to relatively insecure claims to property. Intuition suggests that this may be amplified when those resources are renewable. The experiments confirm that informal property rights adapt to resource characteristics in a manner …

When The Rich Do (Not) Trust The (Newly) Rich: Experimental Evidence On The Effects Of Positive Random Shocks In The Trust Game, Hernán Bejarano, Joris Gillet, Ismael Rodriguez-Lara

ESI Publications

We study behavior in a trust game where first-movers initially have a higher endowment than second-movers but the occurrence of a positive random shock can eliminate this inequality by increasing the endowment of the second-mover before the decision of the first-mover. We find that second-movers return less (i.e., they are less trustworthy) when they have a lower endowment than first-movers, compared with the case in which first and second-movers have the same endowment. In addition, second-movers who experience the positive shock return more than second-movers who have the same endowment as the first-mover from the outset. First-movers do not seem …

From Shocks To Solidarity And Superstition: Exploring The Foundations Of Faith, Aidin Hajikhameneh, Laurence R. Iannaccone

ESI Publications

Additive shocks can substantially increase cooperation in otherwise standard public goods game experiments. We study shocks that randomly adjust players’ earnings by a fixed positive or negative amount reported at the end of each round. These adjustments change neither the return to players’ contributions nor the information about other group members. We compare results across four treatments that employ the same group-level adjustment algorithm but frame it differently, with pre-play descriptions that range from omitting all useful information to accurately revealing its 50/50 random nature. In each treatment, overall contributions run about 50% higher than those obtained in the standard …

How To Discipline Financial Markets: Reputation Is Not Enough, Maria Bigoni, Gabriele Camera, Marco Casari

ESI Working Papers

Historically, shocks originating in the financial sector often spilled over into the real sector with dramatic consequences. We study in the lab how interventions targeting disclosure and capital requirements of financial intermediaries can reduce insolvencies or prevent their negative effects from propagating to the broader economy. In our two-sector economy, consumers and producers can fund financial intermediaries, who, in turn, provide them with liquidity to settle trades. However, intermediaries may undertake risky investments and become insolvent, which depresses real economic activity. In the experiment, insolvencies were frequent. As a consequence, consumers and producers often refused to fund intermediaries, which lowered …

Subjective Well-Being Across The Life Course Among Non-Industrialized Populations, Michael Gurven, Yoann Buoro, Daniel Eid Rodriguez, Katherine Sayre, Benjamin Trumble, Aili Pyhälä, Hillard Kaplan, Arild Angelsen, Jonathan Stieglitz, Victoria Reyes-Garcia

ESI Publications

Subjective well-being (SWB) is often described as being U-shaped over adulthood, declining to a midlife slump and then improving thereafter. Improved SWB in later adulthood has been considered a paradox given age-related declines in health and social losses. While SWB has mostly been studied in high-income countries, it remains largely unexplored in rural subsistence populations lacking formal institutions that reliably promote social welfare. Here, we evaluate the age profile of SWB among three small-scale subsistence societies (n = 468; study 1), forest users from 23 low-income countries (n = 6987; study 2), and Tsimane’ horticulturalists (n = …

Polarization In Multidisciplinary Perspective, Eugen Dimant, Erik O. Kimbrough

Economics Faculty Articles and Research

This article provides an introduction to and overview of the articles in the PNAS Nexus Special Feature on Polarization and Trust.

Measuring Norm Pluralism And Perceived Polarization In Us Politics, Folca Panizza, Eugen Dimant, Erik O. Kimbrough, Alexander Vostroknutov

Economics Faculty Articles and Research

Recent research has shown how norms shape political and economic decision-making. Much of this work assumes that a single norm influences the behavior of all people, but in fact, many situations are characterized by the existence of competing normative viewpoints. We apply a method for measuring belief in the simultaneous existence of multiple norms. Such multiplicity arises naturally when norms are associated with distinctive groups, and thus political polarization can be characterized, in part, as a product of diverging norms between groups. We thus assess the validity of our measurement technique by testing whether it can recover polarization on seven …

Political Ideology, Emotion Response, And Confirmation Bias, David L. Dickinson

ESI Publications

Motivated reasoning can serve to help resolve emotional discomfort, which suggests emotion as a likely moderator of such reasoning. This paper addresses a gap in the literature by examining emotion and confirmation bias in the political domain. Results from two preregistered studies, which involved over 900 unique participants, document a confirmation bias across distinct dimensions of belief and preference formation. Also, ideologically dissonant information significantly worsens self-reported emotion. With some exceptions, the evidence generally supports the hypothesis that negative emotion moderates the strength of the bias, which highlights the importance of emotion response in understanding and potentially counteracting confirmation bias.

Adam Smith, Human Betterment, And His Erroneous Indentification With Self-Interested Human Action, Vernon L. Smith

ESI Publications

In this essay I discuss the proposition that Adam Smith has been widely misinterpreted as asserting in his second book, The Wealth of Nations, that emergent modern economies are driven by the strictly selfish motives of their human inhabitants. The propositions articulated in his first book, The Theory of Moral Sentiments, which offered a theory of society, extended seamlessly into his second book, and continued to be part of his theory of economy. In both works, he distinguished the universal state of being self-interested from actions taken in one's self-interest, and modeled people as creating and following rules of propriety …

Axiomatic Characterization Of Generalized Neo-Eu Preferences And The Falsifiability Of Ambiguity Theories, Manuel Nunez, Mark Schneider

ESI Working Papers

We introduce a new weakening of the independence axiom, co-extreme independence, which we show characterizes a class that encompasses popular ambiguity models including Hurwicz preferences, ϵ-contamination preferences, and NEOEU preferences. Importantly, our representation unifies these as forms of simple ambiguity models as we show that the Vapnik-Chervonenkis (VC) dimension of these models is either unity or increases linearly with the number of states. In contrast, standard ambiguity models characterized in the Anscombe-Aumann framework are complex ambiguity models that have a VC dimension that is either infinite or increases exponentially in the number of states. We show that simple ambiguity preferences …

A Critical Evaluation Of Loss Aversion As The Determinate Of Effort In Compensation Framing, Timothy W. Shields, James Wilhelm

ESI Working Papers

A robust finding in managerial accounting research is that participants prefer contracts framed as bonuses to economically equivalent contracts framed as penalties. Another finding is that participants put forth more effort when facing penalty contracts than equivalent bonus contracts. Both results are commonly described as due to loss aversion, an integral portion of prospect theory. We test whether loss aversion is correlated with higher effort in an experiment with two parts. In the first part, we elicit individual participants' loss aversion using two measures. In the second part of the experiment, participants choose costly effort to increase the likelihood of …

On Explaining Why The (Human) World Is Rich, Bart J. Wilson

ESI Working Papers

The wealth of the modern world is a natural historical marvel. Explaining it has traditionally been the purview of economic historians, as exemplified by the recent book How the World Became Rich by Mark Koyama and Jared Rubin. Economic historians, though, tend to only ask process-oriented “how” questions and “by what means” questions of the Great Enrichment. The eight co-authors of Explaining Technology, who are not economic historians, engage the debate asking a different question. Their goal is to explain the exponential shape of our enrichment with a model of the combinatorial evolution of technology. With an eye toward how …

Gambling Habits And Probability Judgements In A Bayesian Task Environment, David L. Dickinson, Parker Reid

ESI Publications

Little is known about how gamblers form probability assessments. This paper reports on a preregistered study that administered an incentivized Bayesian choice task to n = 465 self-reported gamblers and non-gamblers. The task elicits subjective probability assessments and allows one to estimate the degree to which distinct information sources are weighted in forming probability assessments. Our data failed to support our main hypotheses that experienced online gamblers would be more accurate than non-gamblers in estimating probabilities, that gamblers experienced in games of skill (e.g., poker) would be more accurate than gamblers experienced only in non-skill games (e.g., slots), that accuracy …

Do Participation Rates Vary With Participation Payments In Laboratory Experiments?, Huizhen Zhong, Cary Deck, Daniel J. Henderson

ESI Working Papers

This paper reports a series of experiments designed to evaluate how the advertised participation payment impacts participation rates in laboratory experiments. Our initial goal was to generate variation in the participation rate as a means to control for selection bias when evaluating treatment effects in common laboratory experiments. Initially, we varied the advertised participation payment to 1734 people from $5 to $15 using standard email recruitment procedures, but found no statistical evidence this impacted the participation rate. A second study increased the advertised payment up to $100. Here, we find marginally significant statistical evidence that the advertised participation payment affects …

A Cross-Country Analysis Of China’S Belt And Road Initiative, Leah Shoff

International Studies (MA) Theses

China established The Belt and Road Initiative in 2013 to unite the global economy as well as bolter their own political and economic interests. Though the initiative is relatively new, it is important to understand how the Belt and Road Initiative could impact the global economy. This program is open to any country in the world that seeks to improve its infrastructure. However, critics of China’s proposal have questioned whether countries participating in the program gain economically. Through evaluating the relationship between GDP, time, and other significant data provided by the IMF, a cross-country comparison between Pakistan and the Philippines …

Coordination Within And Across Two Cultures, Gabriele Camera, James Gilmore, Marilyn Giselle Hazlett, Jason Shachat, Bochen Zhu

ESI Working Papers

We study within- and cross-culture interaction in a Stag Hunt game, using a controlled online experiment with Chinese and American participants. We find that cross-culture interactions can have a positive impact on efficiency. American participants, particularly females, more frequently selected the efficient but risky action when facing a Chinese counterpart. Chinese male participants, instead, less frequently selected the efficient but risky action when facing an American counterpart. These behavioral asymmetries do not support the notion of cultural equivalence, nor the hypothesis that multiculturalism fosters strategic uncertainty.

Who Helps Tsimane Children And Adults?, Eric Schniter, Daniel K. Cummings, Paul L. Hooper, Jonathan Stieglitz, Benjamin C. Trumble, Hillard S. Kaplan, Michael D. Gurven

ESI Working Papers

We examine various forms of helping behavior among Tsimane Amerindians of Bolivia, focusing on the provision of shelter, childcare, food, sickcare, cultural influence, and traditional story knowledge. Kin selection theory traditionally explains nepotistic nurturing of youth by closely related kin. However, less attention has been given to understanding the help provided by individuals without close genetic relatedness. To explain who provides various forms of help, we evaluate support for several predictions derived from kin selection theory. Our results show that helpers who are most often closely related and from an older generation tend to provide more costly forms of help …

Ideology And Economic Change, Jared Rubin, Debin Ma

ESI Working Papers

This paper revisits the old theses of the contrasting paths to modernization between Japan and China. It develops a new analytical framework regarding the role of ideology and ideological change—Meiji Japan’s decisive turn towards the West pitted against Qing China’s lethargic response to Western imperialism—as the key driver behind these contrasting paths. Our framework and historical narrative highlight the contrast between Tokugawa Japan’s feudal, decentralized political regime and Qing China’s centralized bureaucratic system as a key determinant driving the differential patterns of ideological realignment. We argue that the 1894-95 Japanese naval victory over China could not be justified under the …

Moral Content Diminishes Preference Falsification, Maxine Bonneau, Tanya O'Garra, Praveen Kujal

ESI Working Papers

We examine how the moral (or neutral) content of an issue influences the tendency to falsify attitudes, given varying social and monetary incentives to engage in such ‘preference falsification’. We conduct an incentivized two stage online experimental study where, in a prior first stage, attitude strength over moral and neutral issues is elicited. Then, in the second stage participants in groups of ten were asked to express their preferences regarding the moral or neutral issues for each possible combination of supporters and opposers in their group, each associated with varying monetary payoffs. More than half of the participants falsify their …

On The Stability Of Norms And Norm-Following Propensity: A Cross-Cultural Panel Study With Adolescents, Erik O. Kimbrough, Erin L. Krupka, Rajnish Kumar, Jennifer M. Murray, Abhijit Ramalingam, Sharon Sánchez‑Franco, Olga L. Sarmiento, Frank Kee, Ruth F. Hunter

Economics Faculty Articles and Research

Norm-based accounts of social behavior in economics typically reflect tradeoffs between maximization of own consumption utility and conformity to social norms. Theories of norm-following tend to assume that there exists a single, stable, commonly known injunctive social norm for a given choice setting and that each person has a stable propensity to follow social norms. We collect panel data on 1468 participants aged 11–15 years in Belfast, Northern Ireland and Bogotá, Colombia in which we measure norms for the dictator game and norm-following propensity twice at 10 weeks apart. We test these basic assumptions and find that norm-following propensity is …

A Multi-Group Public Goods Game Experiment, Aaron S. Berman

Behavioral and Computational Economics (MS) Theses

People belong to many different groups, and few belong to the same network of groups. Moreover, people routinely reduce their involvement in dysfunctional groups while increasing involvement in those they find more attractive. The net effect can be an increase in overall cooperation and the partial isolation of free-riders, even if free-riders are never punished, excluded, or recognized. We test this conjecture with a multi-good extension of the standard finitely repeated public goods game. Our results from four treatments suggest that the multi-group setting indeed raises overall cooperation and dampens the impact of free-riders.

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

Behavioral and Computational Economics (MS) Theses

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.

Fear Of China's Economic Power: Media And Party Affiliation On Public Opinion, Cloe Hughes

Student Scholar Symposium Abstracts and Posters

The United States and China are the world’s two greatest economic rivals. The US-China trade war–which started in 2018–is a result of this battle for economic hegemony and has raged on for the past six years. While trade decisions are ultimately up to policymakers, public opinion is a large factor in international policy decisions, and American biases against the Chinese may adversely affect both the American and Chinese economies. In this paper, I will examine how factors including media consumption and partisanship impact American attitudes towards China’s economy overtaking the United States’ economy. Previous research has studied the effects of …

The Lottery Colonel Blotto Game With Draws, Jingzhi Liu

Behavioral and Computational Economics (MS) Theses

This study presents a novel exploration of the lottery Colonel Blotto game. This adaptation introduces the possibility of draws or ties, moving beyond the traditional winner-take-all framework. The inclusion of the possibility of a draw allows for a more realistic depiction of contests where players may arbitrarily split the value of a battlefield in the absence of a decisive victory. Our model is characterized by the number of battlefields, battlefield values that may vary across battlefields, but are symmetric across players, the distinct player shares of each battlefield value captured in the event of a draw, the potentially asymmetric budgets …