Horticultural Activity Predicts Later Localized Limb Status In A Contemporary Pre-Industrial Population,
2017
Institute for Advanced Study in Toulouse
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,
2017
Chapman University
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,
2017
Chapman University
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,
2017
Université Paris-Saclay
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 …
Reduced Forms And Weak Instrumentation,
2017
Singapore Management University
Reduced Forms And Weak Instrumentation, Peter C. B. Phillips
Research Collection School Of Economics
This paper develops exact finite sample and asymptotic distributions for a class of reduced form estimators and predictors, allowing for the presence of unidentified or weakly identified structural equations. Weak instrument asymptotic theory is developed directly from finite sample results, unifying earlier findings and showing the usefulness of structural information in making predictions from reduced form systems in applications. Asymptotic results are reported for predictions from models with many weak instruments. Of particular interest is the finding that, in unidentified and weakly identified structural models, partially restricted reduced form predictors have considerably smaller forecast mean square errors than unrestricted reduced …
The Paradox Of Power: Principal-Agent Problems And Fiscal Capacity In Absolutist Regimes,
2017
London School of Economics
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 …
How To Describe Objects?,
2017
Singapore Management University
How To Describe Objects?, Liu Peng
Research Collection School Of Economics
This paper addresses the problem of randomly allocating n indivisible objects to n agents where each object can be evaluated according to a set of characteristics. The planner chooses a subset of characteristics and a ranking of them. Then she describes each object as a list of values according to the ranking of those chosen characteristics. Being informed of such a description, each agent figures out her preference that is lexicographically separable according to the characteristics chosen and ranked by the planner. Hence a description of the objects induces a collection of admissible preferences. We call a description good if …
Coordination When There Are Restricted And Unrestricted Options,
2017
King's College London
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,
2017
Emory University
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,
2017
Center for Mathematics and Computer Science (CWI), Amsterdam
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, …
Random Assignments On Preference Domains With A Tier Structure,
2017
Singapore Management University
Random Assignments On Preference Domains With A Tier Structure, Peng Liu, Huaxia Zeng
Research Collection School Of Economics
We address a standard random assignment problem (Bogomolnaia and Moulin (2001)) and search forsd-strategy-proof, sd-efficient and sd-envy-free or equal-treatment-of-equals rules.Our main result is that on a connected domain (Sato (2013)),if there exists a rule satisfying these axioms, this domain is endowed with a restricted tier structure.Furthermore, we show that, on such a domain, the Probabilistic Serial rule is the unique rulethat satisfies these axioms.As an extension, we introduce outside options to the model, and establish the same characterizations.
Housing Market Liquidity And The Effect On Unemployment In The United States: An Application To The U.S. Housing Market, Isolating Regional Housing Market Liquidity And The Associated Effect On Unemployment,
2017
CUNY Graduate Center
Housing Market Liquidity And The Effect On Unemployment In The United States: An Application To The U.S. Housing Market, Isolating Regional Housing Market Liquidity And The Associated Effect On Unemployment, Lindsey M. Piegza
Dissertations, Theses, and Capstone Projects
This study proposes a measure of price spread between the bid (or the offer price from the buyer) and the ask (or the list price of the seller) in order to isolate the effect of housing market liquidity on unemployment. Housing market liquidity is defined as its impact on labor market equilibrium and unemployment at the state and regional levels. This proxy for housing market liquidity offers a more thorough measure of housing liquidity or market clearing ability compared with the current literature, which has relied on price or price changes alone as the primary measure of activity in the …
Investing In The Presence Of Massive Flows,
2017
Chapman University
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.
Loose Math Notes,
2017
Bard College
Loose Math Notes, Anwar Shaikh Phd
Archives of Anwar Shaikh
This collection includes:
- Loose mathematical notes. Unpublished manuscript materials. Author: Anwar Shaikh, PhD.
- The analytical solution of the distribution of wages. Unpublished manuscript. Author: Anwar Shaikh, PhD. Date: February 6, 2017.
- Wealth of the world’s richest publicly traded companies per industry and per employee: Gamma, log-normal and Pareto power law as universal distributions? Soriano-Hernández, P. G., del Castillo-Mussot, M., Campirán-Chavez, I., & Montemayor-Aldrete, J. A. (2017). Physica A: Statistical Mechanics and its Applications, 476, 143–157.
- Handwritten mathematical calculations and derivations. Manuscript notes. Author: Anwar Shaikh, PhD.
- Mathematical derivations related to probability distributions, wage distributions, and wealth …
Who Reacts To Income Tax Rate Changes? The Relationship Between Income Taxes And The Motivation To Work: The Case Of Azerbaijan,
2017
Zlin University
Who Reacts To Income Tax Rate Changes? The Relationship Between Income Taxes And The Motivation To Work: The Case Of Azerbaijan, Orkhan Nadirov, Bruce Dehning, Khatai Aliyev, Minura Iskandarova
Accounting Faculty Articles and Research
This research investigates the effects of income taxation on the motivation to work by employing a survey method for the Azerbaijan population. The two research questions of interest are, if subjects consider income taxes when deciding how many hours to work and how subjects would react to a hypothetical 5% income tax rate increase. Also examined are the responses to these questions between subjects with different socio-economic characteristics. Examining cross-sectional data of 326 respondents reveals that income taxes do not influence Azerbaijan labour market participants’ motivation to work, regardless of their socio-economic characteristics. Empirical results indicate that reactions to hypothetical …
Bubbles In Experimental Asset Markets,
2017
Chapman University
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 …
A Flexible And Customizable Method For Assessing Cognitive Abilities,
2017
University of Arkansas
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,
2017
Chapman University
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 …
Impact Of Network Externality On End-User Piracy: Revisited,
2017
Chapman University
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.
Governance By Economist: An Historical Note On The Keynesian Revolution,
2017
University of Nevada, Las Vegas
Governance By Economist: An Historical Note On The Keynesian Revolution, Lewis Karstensson
Molasky Family Department of Economics and Real Estate Faculty Research
An inferential analysis of the performance of the United States economy with respect to production, employment, and average price level over the twentieth century by presidential administration.
