Papers - All

Uri Gneezy, Andreas Leibbrandt, John A List

Cited by*: 1 Downloads*: 98

Competitiveness pervades life: plants compete for sunlight and water, animals for territory and food, and humans for mates and income. Here we investigate human competitiveness with a natural experiment and a set of behavioral experiments. We compare competitiveness in traditional fishing societies where local natural forces determine whether fishermen work in isolation or in collectives. We find sharp evidence that fishermen from individualistic societies are far more competitive than fishermen from collectivistic societies and that this difference emerges with work experience. These findings suggest that humans can evolve traits to specific needs, support the idea that socio-ecological factors play a decisive role for individual competitiveness, and provide evidence how individualistic and collectivistic societies shape economic behaviour.

Patrizia Lattarulo, Marco Mariani, Laura Razzolini

Cited by*: 1 Downloads*: 117

This paper reports results from a field experiment conducted to study the effect of incentives offered to high school teens to motivate them to visit art museums. A vast literature exists on the design of incentives to modify the behavior of firms and consumers, but not much is known about incentives offered to adolescents and young adults to affect their cultural consumption behavior. Students in the first treatment receive a flier with basic information and opening hours of a main museum in Florence, Italy-Palazzo Vecchio. Students in the second treatment receive the flier and a short presentation conducted by an art expert about the exhibit; students in the third treatment, in addition to the flier and the presentation, receive also a non-financial reward in the form of extra-credit points toward their school grade. The analysis yields two main findings. First, non-financial reward is more effective at inducing the students to undertake the encouraged visit than either the simple presentation or the basic information with the flier. Second, over a longer time horizon the non-financial reward does not induce a significant change in behavior with respect to the simple presentation.

Francis Larson, John A List, Robert D Metcalfe

Cited by*: 1 Downloads*: 61

Behavioral economists have recently put forth a theoretical explanation for the equity premium puzzle based on combining myopia and loss aversion. Complementing the behavioral theory is evidence from laboratory experiments, which provide strong empirical support consistent with myopic loss aversion (MLA). Yet, whether, and to what extent, such preferences underlie behaviors of traders in their natural domain remains unknown. Indeed, a necessary condition for the MLA theory to explain the equity premium puzzle is for marginal traders in markets to exhibit such preferences. Using minute-by-minute trading observations from over 864,000 price realizations in a natural field experiment, we find data patterns consonant with MLA: in their normal course of business, professional traders who receive infrequent price information invest 33% more in risky assets, yielding profits that are 53% higher, compared to traders who receive frequent price information. Beyond testing theory, these results have important implications for efficient resource allocation as well as characterizing the optimal structure of social and economic policies.

Catherine Kling , John A List, Jinhua Zhao

Cited by*: 1 Downloads*: 5

Recent evidence from laboratory experiments suggests that important disparities exist between willingness to pay (WTP) and compensation demanded for the same good. Because a fundamental postulate in neoclassical theory is that with small income effects and many available substitutes, the willingness to accept (WTA) and WTP measures of value for a commodity should be roughly equivalent, this finding has vast implications in both a positive and normative sense. This study advances, and experimentally tests, a new explanation of the WTP/WTA disparity-a dynamic theory based on the presence of commitment costs. Although to date neoclassical models have not explained the observed data patterns well, we find that the commitment cost theory combined with a simple behavioral anomaly is able to lend insights into the causes and severity of the WTA/WTP disparity. Furthermore, we find that market experience attenuates the behavioral anomaly, consistent with the notion that no value disparity exists for agents with sufficient market experience.

Frank W Marlowe

Cited by*: 1 Downloads*: 27

Most hypotheses proposed to explain human food sharing address motives, yet most tests of these hypotheses have measured only the patterns of food transfer. To choose between these hypotheses we need to measure people's propensity to share. To do that, I played two games (the Ultimatum and Dictator Games) with Hadza hunter-gatherers. Despite their ubiquitous food sharing, the Hadza are less willing to share in these games than people in complex societies are. They were also less willing to share in smaller camps than larger camps. I evaluate the various food-sharing hypotheses in light of these results.

Christopher Mann

Cited by*: 1 Downloads*: 7

Survey researchers have long been concerned with the question of whether participation in preelection surveys increases voter turnout. This article presents findings from three large-scale field experiments conducted during the 2002 general election in Maryland, New York, and Pennsylvania. Unlike early studies, which found that participation in preelection surveys increased voter turnout, this study finds no significant effect. The author argues that the rigorous experimental methodology and large sample size in these three experiments should allay concern that survey participation affects turnout.

Luis Cabral, Lingfang Li

Cited by*: 1 Downloads*: 41

We run a series of controlled field experiments on eBay where buyers are re-warded for providing feedback. Our results provide little support for the hypothesis of buyer's rational economic behavior: the likelihood of feedback barely increases as we increase feedback rebate values; also, the speed of feedback, bid levels and the number of bids are all insensitive to rebate values. By contrast, we find evidence consistent with reciprocal buyer behavior. Lower trans-action quality leads to a higher probability of negative feedback as well as a speeding up of such negative feedback. However, when transaction quality is low (as measured by slow shipping), offering a rebate significantly decreases the likelihood of negative feedback. All in all, our results are consistent with the hypothesis that buyers reciprocate the seller's "good deeds" (feedback rebate, high transaction quality) with more frequent and more favorable feedback. As a result, sellers can "buy" feedback, but such feedback is likely to be biased.

James Edwards, John A List

Cited by*: 1 Downloads*: 0

People respond to those who ask. Within the charitable fundraising community, the power of the ask represents the backbone of most fundraising strategies. Despite this, the optimal design of communication strategies has received less formal attention. For their part, economists have recently explored how communication affects empathy, altruism, and giving rates to charities. Our study takes a step back from this literature to examine how suggestions-a direct ask for a certain amount of money-affect giving rates. We find that our suggestion amounts affect both the intensive and extensive margins: more people give and they tend to give the suggested amount. Resulting insights help us understand why people give, why messages work, and deepen practitioners' understanding of how to use messages to leverage more giving.

Luigi Butera, John A List

Cited by*: 1 Downloads*: 355

Novel empirical insights by their very nature tend to be unanticipated, and in some cases at odds with the current state of knowledge on the topic. The mechanics of statistical inference suggest that such initial findings, even when robust and statistically significant within the study, should not appreciably move priors about the phenomenon under investigation. Yet, a few well-conceived independent replications dramatically improve the reliability of novel findings. Nevertheless, the incentives to replicate are seldom in place in the sciences, especially within the social sciences. We propose a simple incentive-compatible mechanism to promote replications, and use experimental economics to highlight our approach. We begin by reporting results from an experiment in which we investigate how cooperation in allocation games is affected by the presence of Knightian uncertainty (ambiguity), a pervasive and yet unexplored characteristic of most public goods. Unexpectedly, we find that adding uncertainty enhances cooperation. This surprising result serves as a test case for our mechanism: instead of sending this paper to a peer-reviewed journal, we make it available online as a working paper, but we commit never to submit it to a journal for publication. We instead offered co-authorship for a second, yet to be written, paper to other scholars willing to independently replicate our study. That second paper will reference this working paper, will include all replications, and will be submitted to a peer- reviewed journal for publication. Our mechanism allows mutually-beneficial gains from trade between the original investigators and other scholars, alleviates the publication bias problem that often surrounds novel experimental results, and accelerates the advancement of economic science by leveraging the mechanics of statistical inference.

Anya Samek

Cited by*: 1 Downloads*: 57

The rising childhood obesity rate calls for interventions aimed at improving child food choice, and one recent innovation is the use of behavioral 'nudges.' We conducted a field experiment with over 1,400 children to measure the impact of interventions based on two behavioral theories: reciprocity and theories of self-control. The interventions were implemented in the classroom prior to observing choices between a healthy and less healthy milk choice in the cafeteria. We found that small, unconditional gifts (triggering reciprocity) increased the choice of the healthier milk by 15 percentage points relative to a control group. Giving the option to set a goal (an internal commitment device) was most effective for the younger children and increased the choice of the healthier milk by 10 percentage points. About two thirds of children made a goal to select the healthier milk, and almost 90 percent followed through with their goal. We also see an impact of health information delivered by teachers. Our results have implications for policy and practice, since low cost interventions implemented at school may have an impact on what kids choose to eat and in turn on obesity rates.

Daniel J Benjamin, James O Berger, Magnus Johannesson, Brian A Nosek, E. J Wagenmakers, Richard Berk, Kenneth A Bollen, Bjorn Brembs, Lawrence Brown, Colin F Camerer, David Cesarini, Christopher D. Chambers, Merlise Clyde, Thomas D Cook, Paul De Boeck, Zoltan Dienes, Anna Dreber, Kenny Easwaran, Charles Efferson, Ernst Fehr, Fiona Fidler, Andy P. Field, Malcom Forster, Edward I. George, Tarun Ramadorai, Richard Gonzalez, Steven Goodman, Edwin Green, Donald P Green, Anthony Greenwald, Jarrod D. Hadfield, Larry V. Hedges, Leonhard Held, Teck Hau Ho, Herbert Hoijtink, James Holland Jones, Daniel J Hruschka, Kosuke Imai, Guido Imbens, John P.A. Ioannidis, Minjeong Jeon, Michael Kirchler, David Laibson , John A List, Roderick Little, Arthur Lupia, Edouard Machery, Scott E. Maxwell, Michael McCarthy, Don Moore, Stephen L. Morgan, Marcus Munafo, Shinichi Nakagawa, Brendan Nyhan, Timothy H Parker, Luis Pericchi, Marco Perugini, Jeff Rouder, Judith Rousseau, Victoria Savalei, Felix D. Schonbrodt, Thomas Sellke, Betsy Sinclair, Dustin Tingley, Trisha Van Zandt, Simine Vazire, Duncan J. Watts, Christopher Winship, Robert L. Wolpert, Yu Xie, Cristobal Young, Jonathan Zinman, Valen E. Johnson

Cited by*: 1 Downloads*: 965

We propose to change the default P-value threshold for statistical significance for claims of new discoveries from 0.05 to 0.005.

Juan-Camilo Cardenas

Cited by*: 0 Downloads*: 50

En esta ponencia queremos explorar, a partir de nuestros resultados de investigacion, posibles puentes de complementariedad y sinergia entre la economia experimental y los m_todos participativos de investigacion, para poder estudiar problemas rurales, en particular aquellos asociados al uso de recursos naturales por parte de las comunidades. Desde el 1er semestre del 2001 hasta la fecha hemos realizado una serie de talleres y experimentos economicos en varias comunidades del pas. En esta ponencia vamos a hacer referencia a los tres estudios de caso que se realizaron en el proyecto "Regulacion de Recursos Comunitarios: Ejercicios economicos en el campo" que se llevaron a cabo en el Neusa y la Vega en Cundinamarca, y el Parque Sanquianga en Nario. El proposito de estos estudios de caso era estudiar los problemas del uso comunitario de recursos como la pesca, la piangua y o el agua en una microcuenca. En cada comunidad se realizaron 26 sesiones de experimentos economicos con participacion de 130 campesinos en cada comunidad; igualmente se llevaron a cabo talleres y ejercicios desde el Diagnostico Rural Participativo (DRP) para discutir con los mismos participantes tanto los resultados de los experimentos como la problem_tica asociada al uso de estos recursos naturales. Dicha informacion fue sistematizada con el fin de contrastar los tres casos, y las posibles consistencias entre dos aproximaciones (economia experimental y herramientas participativas) que hasta el momento no han sido utilizadas de manera conjunta ni para las mismas situaciones. Como se presentar_, la economia experimental ofrece potencialidades interesantes para estudiar la validez de los modelos economicos de comportamiento de las personas frente a, por ejemplo, los dilemas del uso de recursos colectivos; igualmente puede ofrecer informacion muy detallada y verificable acerca de las decisiones micro de las personas; por su parte las metodolog?as participativas permiten explicar procesos y situaciones que un agente externo dif?cilmente puede comprender acerca de las causalidades e interacciones de factores que afectan la problem_tica de una comunidad. A traves de estos instrumentos podemos mostrar como estas dos metodologias pueden de una manera eficaz responder a preguntas centrales acerca del uso comunitario de recursos.

Vic Adamowicz, Jonathan E Alevy, John A List

Cited by*: 0 Downloads*: 10

Psychological insights have made inroads within most major areas of study in economics. One area where less advance has been made is environmental and resource economics. In this study, we examine the implications of preference reversals over evaluation modes, in which stated economic values critically depend on whether the good is valued jointly with others or in isolation. The question arises because two commonly used methods for eliciting stated preferences differ in that one presents objects together and another presents objects to be evaluated in isolation. Beyond showing an example of the import of behavioral economics, our empirical evidence sheds new light on the factors associated with insensitivity of valuations to the scope of the good

Dean S Karlan, John A List

Cited by*: 0 Downloads*: 29

We conducted two matching grant experiments with an international development charity. The primary experiment finds that a matching grant from the Bill and Melinda Gates Foundation raises more funds than a matching grant from an anonymous donor. The effect persists, and is strongest for donors who previously gave to other poverty-oriented charities. Combining these insights with survey results, we conclude that our matching gift primarily works through a quality signal mechanism. Overall, the results help to clarify why people give to charity, what models help to describe those motivations, and how practitioners can leverage economics to increase their fundraising potential.

Thomas de Hoop, Ricardo Fort, Luuk van Kempen

Cited by*: 0 Downloads*: 14

This paper discusses voluntary contributions to health education in a shanty town in Peru, using a new experimental setup to identify voluntary contributions to local public goods. The experiment enables individuals to contribute to a health education meeting facilitated by an NGO, which they know will only be organised if the cumulative investment level exceeds a certain threshold value. In contrast to expectations of aid distributors, individuals contributed a substantial amount of money, despite the long-term nature of the health benefits from health education. High discount rates only seem to have had a detrimental effect on investment in a poorer subsample. Results from a complementary experiment, which identifies donations to a nutrition program, suggest that positive beliefs about short-term benefits from health education in the form of learning effects have played an important role in the investment decision. The results indicate that channelling decision-making power about public good provision to beneficiaries not necessarily implies a crowding out of investment in local public goods with long-term benefits. Hence, particular attention is given to the potential role of cash transfers in the financing of local public goods.

John A List

Cited by*: 0 Downloads*: 3

Given the importance of job placement for Ph.D.s, it is surprising that economists have not closely examined the factors that affect procuring job interviews for new Ph.D. economists.' In this study, I investigated those factors using a data set gathered at the 1997 American Economic Association (AEA) meetings in New Orleans. My purpose was to increase the information available to Ph.D. candidates who wish to maximize their postgraduation job prospects. In addition, this study may guide undergraduates and master's candidates who seek to pursue a Ph.D. in economics. The results of the findings, however, could benefit more than job seekers-they may provide academic departments and private industry with a comparative baseline for making decisions to interview job candidates. The job market for new Ph.D.s consists of two submarkets-academic and businesshndustry. The following are questions regarding job seekers in both submarkets. (1) Do employers in academia seek the same attributes as businesshndustry? (2) Is there discrimination in the interview decision? (3) Is an MBA important in the Ph.D. market? (4) How many more interviews are secured by candidates with a finished dissertation? (5) How important are teaching and research credentials? (6) Are graduates from top-ranked programs given special consideration in the job market? (7) Do personal letters of recommendation or calls from professors make a difference in the interview decision? (8) How influential are recommendation letters from prestigious economists? (9) What is the marginal effect of submitting another application? A simple theoretic construct provides a basis for understanding the two-step job-search process carried out by new Ph.D. economists.* In the first step, the job seeker decides whether to enter one or both submarkets and determines the optimal number of applications to submit. The second step reflects the actual decision process regarding acceptance or rejection of a job offer. Because a natural prerequisite to securing a job is an initial interview, my main focus in this study was to discover the optimal job search strategies for new Ph.D. economists by determining applicant characteristics that are conducive to obtaining interviews.

Lorenz Goette, Alois Stutzer, Michael Zehnder

Cited by*: 0 Downloads*: 34

In this paper, we propose a decision framework where people are individually asked to either actively consent or dissent to some pro-social behavior. We hypothesize that confronting individuals with the choice of engaging in a specific pro-social behavior contributes to the formation of issue-specific altruistic preferences while simultaneously involving a commitment. The hypothesis is tested in a large-scale field experiment on blood donation. We find that this "active-decision" intervention substantially increases the stated willingness to donate blood, as well as the actual donation behavior of people who have not fully formed preferences beforehand.

Jeffrey A Livingston

Cited by*: 0 Downloads*: 10

Problems that arise in online markets due to asymmetric information are exacerbated by the fact that transactions in these markets are completely anonymous. The online auction mechanism provided by eBay is an example of such a market. To combat the anonymity problem, eBay allows sellers to become "ID Verified" by paying a small fee to have their identity confirmed by a credit information company. Doing so may reassure potential bidders that the seller is legitimate since their identity is known, and there is more assurance that the seller could be tracked down and punished should a problem arise. Identifying the effect of ID verification is difficult using naturally occurring data, however, because the service tends to be used only by sellers who have a well-established reputation. It is thus difficult to determine whether an improved outcome is due to the seller's reputation or due to ID verification. This study alleviates this concern by conducting a field experiment where items are sold with different IDs that have different characteristics, and finds little evidence that bidders place any value on ID verification.

Tanjim Hossain, John Morgan

Cited by*: 0 Downloads*: 7

We use field and natural experiments in online auctions to study the revenue effect of varying the level and disclosure of shipping charges. Our main findings are (1) disclosure affects revenues-for low shipping charges, a seller is better off disclosing; and (2) increasing shipping charges boosts revenues when these charges are hidden. These results are not explained by changes in the number of bidders.

Juan-Camilo Cardenas

Cited by*: 0 Downloads*: 9

No abstract available