Other Economics Commons^™

Comparing A Risky Choice In The Field And Across Lab Procedures, Zuzana Brokesova, Cary Deck, Jana Peliova

ESI Publications

Controlled laboratory experiments have become a generally accepted method for studying economic behavior, but there are two issues regarding the reliability of such work. The first pertains to the ability to generalize experimental results outside the laboratory. The second pertains to the impact the payment procedure has on observed behavior. This paper adds empirical insight into both issues. Using data from the promotional campaign of a bank and a laboratory experiment that closely mimics the same decision, we find similar levels of risk taking controlling for gender and age. We also compare behavior on this same risky choice across three …

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, Gregory S. Thomas

ESI Publications

Background—Conventional coronary artery disease risk factors might potentially explain at least 90% of the attributable risk of coronary artery disease. To better understand the association between the pre-industrial lifestyle and low prevalence of coronary artery disease risk factors, we examined the Tsimane, a Bolivian population living a subsistence lifestyle of hunting, gathering, fishing, and farming with few cardiovascular risk factors, but high infectious inflammatory burden.

Methods—We did a cross-sectional cohort study including all individuals who self-identified as Tsimane and who were aged 40 years or older. Coronary atherosclerosis was assessed by coronary artery calcium (CAC) scoring done with …

Smile, Dictator, You’Re On Camera, Joy A. Buchanan, Matthew K. Mcmahon, Matthew Simpson, Bart J. Wilson

ESI Publications

We investigate the degree to which people in a shopping mall express other-regarding behavior in the dictator game. Whereas many studies have attempted to increase the social distance between the dictator and experimenter and between the dictator and dictatee, we attempt to minimize that social distance between random strangers by video recording the decisions with the permission of the dictators to display their image on the Internet. Offers made by dictators are high relative to other experiments and a nontrivial number give the entire experimental windfall away, however a nontrivial number of people keep everything as well.

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, Paul L. Hooper

ESI Publications

The Tsimane Health and Life History Project, an integrated bio-behavioral study of the human life course, is designed to test competing hypotheses of human life-history evolution. One aim is to understand the bidirectional connections between life history and social behavior in a highfertility, kin-based context lacking amenities of modern urban life (e.g. sanitation, banks, electricity). Another aim is to understand how a high pathogen burden influences health and well-being during development and adulthood. A third aim addresses how modernization shapes human life histories and sociality. Here we outline the project’s goals, history, and main findings since its inception in 2002. …

A Study Of The Triggers Of Conflict And Emotional Reactions, Michael Caldera, Michael T. Mcbride, Matthew W. Mccarter, Roman M. Sheremeta

ESI Publications

We study three triggers of conflict and explore their resultant emotional reactions in a laboratory experiment. Economists suggest that the primary trigger of conflict is monetary incentives. Social psychologists suggest that conflicts are often triggered by fear. Finally, evolutionary biologists suggest that a third trigger is uncertainty about an opponent’s desire to cause harm. Consistent with the predictions from economics, social psychology, and evolutionary biology, we find that conflict originates from all three triggers. The three triggers differently impact the frequency of conflict, but not the intensity. Also, we find that the frequency and intensity of conflict decrease positive emotions …

Emotional Calibration Of Self-Control, Joaquín Gómez-Miñambres, Eric Schniter

ESI Publications

We study a dynamic model of self-control where previous decisions have influence on subsequent decision making. In our model effort and guilt are negative emotions produced by previous decisions to either resist or yield to temptation, respectively. These emotions calibrate an individual's self-control, in turn affecting future decisions. Our model explains non-stationary consumption paths characterized by compensatory indulgence and restraint, why under some circumstances the amplitude of this switching pattern increases with foresight, and how unavoidable options that might show up on one's menu influence choices, consequent emotions, consumption paths, and preferences for commitment. We discuss the implications of self-control …

Profitable Horizontal Mergers Without Efficiencies Can Increase Consumer Surplus, Charles J. Thomas

ESI Working Papers

In a simple model I show consumer surplus can increase after competing sellers consummate a profitable merger that generates no cost savings. This finding contrasts sharply with the conventional wisdom that horizontal mergers without efficiencies must enhance sellers’ market power to be profitable, thereby harming buyers. The model fits industries in which individual buyers conduct distinct procurement contests for which sellers incur costs to participate, say to assess their product’s fit with the buyer’s preferences. Mergers benefit buyers by inducing stronger contest-level entry, echoing common claims from merging parties that their merger is beneficial because it creates a stronger competitor.

The Ideological Roots Of Institutional Change, Murat Iyigun, Jared Rubin

ESI Working Papers

Why do some societies fail to adopt more efficient institutions in response to changing economic conditions? And why do such conditions sometimes generate ideological backlashes and at other times lead to transformative sociopolitical movements? We propose an explanation that highlights the interplay--or lack thereof--between new technologies, ideologies, and institutions. When new technologies emerge, uncertainty results from a lack of understanding how the technology will fit with prevailing ideologies and institutions. This uncertainty discourages investment in institutions and the cultural capital necessary to take advantage of new technologies. Accordingly, increased uncertainty during times of rapid technological change may generate an ideological …

The Cultural Transmission Of Trust Norms: Evidence From A Lab In The Field On A Natural Experiment, Jared Rubin, Elira Karaja

ESI Working Papers

We conduct trust games in three villages in a northeastern Romanian commune. From 1775-1919, these villages were arbitrarily assigned to opposite sides of the Habsburg and Ottoman/Russian border despite being located seven kilometers apart. Russian and Ottoman Öscal institutions were more rapacious than Habsburg institutions, which may have eroded trust of outsiders (relative to co-villagers). Our design permits us to rigorously test this conjecture, and more generally, whether historically institutionalized cultural norms are transmitted intergenerationally. We Önd that participants on the Ottoman/Russian side are indeed less likely to trust outsiders but more likely to trust co-villagers.

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

ESI Publications

Objectives—Modern humans may have gracile skeletons due to low physical activity levels and mechanical loading. Tests using prehistoric skeletons are limited by the inability to assess behaviour directly, while modern industrialized societies possess few socio-ecological features typical of human evolutionary history. Among Tsimane forager-horticulturalists, we test whether greater activity levels and, thus, increased loading earlier in life are associated with greater later-life bone status and diminished age-related bone loss.

Materials and Methods—We used quantitative ultrasonography to assess radial and tibial status among adults aged 20+ years (mean±SD age=49±15; 52% female). We conducted systematic behavioural observations to assess earlier-life …

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

ESI Working Papers

We investigate the behavior of information providers (underwriters) and users (investors) in a controlled laboratory experiment where underwriters have incentives to deceive and investors have incentives to avoid deception. Participants play simultaneously as underwriters and investors in one-shot information transmission games. The results of our experiment show a significant proportion of both deceptive and non-deceptive underwriters. Despite the presence of deceptive underwriters, investors are receptive to underwriters’ reports, gleaning information content, albeit overly optimistic. Within our sample, deception by underwriters and reception by investors are the most profitable strategies. Moreover, participants who send deceptive reports to investors, but at the …

Monitoring Institutions In Indefinitely Repeated Games, Gabriele Camera, Marco Casari

ESI Working Papers

Does monitoring past conduct facilitate intertemporal cooperation? We designed an experiment characterized by strategic uncertainty and multiple equilibria where coordinating on the efficient outcome is a challenge. Participants, interacting anonymously in a group, could pay a cost either to obtain information about their counterparts, or to create a freely available public record of individual conduct. Both monitoring institutions were actively employed. However, groups were unable to attain higher levels of cooperation compared to a treatment without monitoring. Information about past conduct alone thus appears to be ineffective in overcoming coordination challenges.

Targeted Campaign Competition, Loyal Voters, And Supermajorities, Pierre C. Boyer, Kai A. Konrad, Brian Roberson

ESI Working Papers

We consider campaign competition in which candidates compete for votes among a continuum of voters by engaging in persuasive efforts that are targetable. Each individual voter is persuaded by campaign effort and votes for the candidate who targets more persuasive effort to this voter. Each candidate chooses a level of total campaign effort and allocates their effort among the set of voters. We completely characterize equilibrium for the majoritarian objective game and compare that to the vote-share maximizing game. If the candidates are symmetric ex ante, both types of electoral competition dissipate the rents from once in expectation. However, the …

Rulers, Religion, And Riches: Why The West Got Rich And The Middle East Did Not, Jared Rubin

Economics Faculty Books and Book Chapters

For centuries following the spread of Islam, the Middle East was far ahead of Europe. Yet, the modern economy was born in Europe. Why was it not born in the Middle East? In this book Jared Rubin examines the role that Islam played in this reversal of fortunes. It argues that the religion itself is not to blame; the importance of religious legitimacy in Middle Eastern politics was the primary culprit. Muslim religious authorities were given an important seat at the political bargaining table, which they used to block important advancements such as the printing press and lending at interest. …

The Paradox Of Power: Principal-Agent Problems And Fiscal Capacity In Absolutist Regimes, Debin Ma, Jared Rubin

ESI Working Papers

Tax extraction in Qing China was low relative to Western Europe. It is not obvious why: China was much more absolutist and had stronger rights over property and people. Why did the Chinese not convert their absolute power into revenue? We propose a model, supported by historical evidence, which suggests that i) the center could not ask its tax collecting agents to levy high taxes because it would incentivize agents to overtax the peasantry; ii) the center could not pay agents high wages in return for high taxes because the center had no mechanism to commit to refrain from confiscating …

Coordination When There Are Restricted And Unrestricted Options, Shaun P. Hargreaves Heap, David Rojo Arjona, Robert Sugden

Economics Faculty Articles and Research

One might expect that, in pure coordination games, coordination would become less frequent as the number of options increases. Contrary to this expectation, we report an experiment which found more frequent coordination when the option set was unrestricted than when it was restricted. To try to explain this result, we develop a method for eliciting the general rules that subjects use to identify salient options in restricted and unrestricted sets. We find that each such rule, if used by all subjects, would generate greater coordination in restricted sets. However, subjects tend to apply different rules to restricted and unrestricted sets.

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, Michael Gurven

ESI Publications

Objectives—Grooming has important utilitarian and social functions in primates but little is known about grooming and its functional analogues in traditional human societies. We compare human grooming to typical primate patterns to test its hygienic and social functions.

Materials and Methods—Bayesian phylogenetic analyses were used to derive expected human grooming time given the potential associations between grooming, group size, body size, terrestriality, and several climatic variables across 69 primate species. This was compared against observed times dedicated to grooming, other hygienic behavior and conversation among the Maya, Pumé, Sanöma, Tsimane’, Yanomamö, and Ye’kwana (mean number of behavioral scans …

Deliberation Favours Social Efficiency By Making People Disregard Their Relative Shares: Evidence From Usa And India, Valerie Capraro, Brice Corgnet, Antonio M. Espín, Roberto Hernán-González

ESI Publications

Groups make decisions on both the production and the distribution of resources. These decisions typically involve a tension between increasing the total level of group resources (i.e. social efficiency) and distributing these resources among group members (i.e. individuals’ relative shares). This is the case because the redistribution process may destroy part of the resources, thus resulting in socially inefficient allocations. Here we apply a dual-process approach to understand the cognitive underpinnings of this fundamental tension. We conducted a set of experiments to examine the extent to which different allocation decisions respond to intuition or deliberation. In a newly developed approach, …

Investing In The Presence Of Massive Flows, Terence C. Burnham, Harry Gakidis, Jeffrey Wurgler

ESI Working Papers

Approximately $10 trillion is benchmarked to Morgan Stanley Capital International’s Developed, Emerging, Frontier, and standalone market indexes. Reclassifications from one index to another require thousands of investors to decide how to react. We study a comprehensive sample of past reclassifications to guide this decision. Reclassified markets’ prices substantially overshoot between the announcement and effective dates—prices fall when a market moves from an index with more benchmarked ownership to one with less, such from Emerging to Frontier, and vice-versa—but revert within a year. We identify alpha-maximizing responses to reclassifications for both tightly benchmarked and more flexible investors.

Impact Of Network Externality On End-User Piracy: Revisited, Sougata Poddar, Yuanzhu Lu

Economics Faculty Articles and Research

We revisit the issue whether a strong presence of network externality in the digital products market could be a reason for the copyright holders to allow piracy. We find that except under a limited circumstance this is not true in a framework that involves IPR protection and copyright holder's costly effort to prevent piracy. We further show that as the degree of network externality increases, the strategic piracy deterrence level of the copyright holder increases and the actual rate of piracy decreases.

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, Hillard Kaplan

ESI Publications

Cognitive performance is characterized by at least two distinct life course trajectories. Many cognitive abilities (e.g. “effortful processing” abilities including fluid reasoning, and processing speed) improve throughout early adolescence and start declining in early adulthood, while other abilities (e.g. “crystallized” abilities like vocabulary breadth) improve throughout adult life, remaining robust even at late ages. Although schooling may impact performance and cognitive “reserve”, it has been argued that these age patterns of cognitive performance are human universals. Here we examine age patterns of cognitive performance among Tsimane forager-horticulturalists of Bolivia, and test whether schooling is related to differences in cognitive performance …

Bubbles In Experimental Asset Markets, Praveen Kujal, Owen Powell

ESI Working Papers

"One can define a bubble as a persistent increase in the price of an asset over and above its fundamental value with an abrupt fall in prices when no buyers are available to make purchases. The occurrence of market bubbles has a long history, starting with the Dutch Tulip Mania (1624-1637) to the South Sea and Mississippi Bubble (1716-1720), the British Railway Mania (1840´s) to the crash of 1929. Recent events have been the crash of 1987, the dot-com bubble (1990s) to the most recent housing crisis in early 2000. Even though bubbles, and a subsequent crash, may reallocate resources …

Humans’ (Incorrect) Distrust Of Reflective Decisions, Antonio Cabrales, Antonio M. Espín, Praveen Kujal, Stephen Rassenti

ESI Working Papers

Recent experiments suggest that social behavior may be shaped by the time available for decision making. It is known that fast decision making relies more on intuition whereas slow decision making is affected by reflective processes. Little is known, however, about whether people correctly anticipate the effect of intuition vs. reflection on others’ decision making. This is important in everyday situations where anticipating others’ behavior is often essential. A good example of this is the extensively studied Trust Game where the trustor, by sending an amount of money to the trustee, runs the risk of being exploited by the trustee’s …

Risk Preference, Time Preference, And Salience Perception, Jonathan Leland, Mark Schneider

ESI Working Papers

A model of decision making is introduced that provides a unified approach for predicting choices under risk and over time. The model predicts systematic departures from expected utility and discounted utility using the same mathematical structure and the same psychological intuition and shows that a dozen diverse choice anomalies can be given a common underlying explanation. The model weights attribute differences both by their importance (consistent with expected utility and discounted utility) and by their salience or similarity (consistent with procedural models based on heuristics), and so provides a bridge between rational and heuristic representations of decision making.

A Flexible And Customizable Method For Assessing Cognitive Abilities, Andrea Civelli, Cary Deck

ESI Working Papers

Raven's Progressive Matrices are a broadly used tool for measuring cognitive ability. This paper develops and validates a set of nonverbal puzzles that can be viewed as an extension of or substitute for the well-known Ravens tasks. Specifically, we describe the characteristics of our puzzles and provide a calibration of the matrices in terms of response accuracy and response time as a function of these characteristics. Then we directly compare within-subject performance on our puzzles and Ravens tasks. Finally, we replicate a previous experimental paper, substituting our puzzles for the Ravens matrices, and show the two tools have similar predictive …

Minimal Frames And Transparent Frames For Risk, Time, And Uncertainty, Jonathan Leland, Mark Schneider, Nathaniel Wilcox

ESI Working Papers

It has been argued that behavior differs between transparent and nontransparent representations of a decision. However, the notion of a ‘transparent representation’ has not been precisely defined. We address this gap by providing formal definitions of ‘transparent frames’ for risk and time, establishing their uniqueness, presenting an approach to construct such frames, and comparing these framesto the ‘standard’ presentation format. Our typology of frames provides a logic for predicting systematic shifts in risk and time preferences as well as changes in the violation rates of rational choice theory. We conduct an experiment for choice under risk to investigate the framing …

All-Pay Auctions With Ties, Alan Gelder, Dan Kovenock, Brian Roberson

ESI Working Papers

We study the two-player, complete information all-pay auction in which a tie ensues if neither player outbids the other by more than a given amount. In the event of a tie, each player receives an identical fraction of the winning prize. Thus players engage in two margins of competition: losing versus tying, and tying versus winning. Two pertinent parameters are the margin required for victory and the value of tying relative to winning. We fully characterize the set of Nash equilibria for the entire parameter space. For much of the parameter space, there is a unique Nash equilibrium which is …

A Perspective On Electronic Alternatives To Traditional Currencies, Gabriele Camera

ESI Working Papers

The institution of money is rapidly evolving thanks to developments in computer-based cryptography. Technological advances have made possible the creation of cost-effective electronic alternatives to banknotes and coins, which are the traditional physical currencies. This document aims to describe — based on scientific literature — the use and characteristics of money, some of the problems associated with issuing a new currency or a new payment instrument, and the possible comparative advantages of a central bank in leading the way relative to private issuers.

Asymmetric Social Norms, Gabriele Camera, Alessandro Gioffré

ESI Working Papers

Studies of cooperation in infinitely repeated matching games focus on homogeneous economies, where full cooperation is efficient and any defection is collectively sanctioned. Here we study heterogeneous economies where occasional defections are part of efficient play, and show how to support those outcomes through contagious punishments.

The Economic Impacts Of Undocumented Immigrants In The United States, Abdulaziz Alangari

Honors Papers and Posters

There are about 11 million undocumented immigrants in the U.S., of which all are not granted a work permit. Thus, in order to survive, these immigrants seek jobs that do not require legal status but have wages significantly lower than minimum. In short, by having these immigrants work in low-wage jobs, the U.S. economy benefits by providing a diverse market to U.S. residents and thus creates a vast economy. My research paper will be talking about how the presence of undocumented immigrants is a significant factor in creating and shaping the diverse U.S. economy.