Papers - Artefactual

Edwin Leuven, Hessel Oosterbeek, Bas van der Klaauw

Cited by*: 0 Downloads*: 62

In a randomized field experiment where first year university students could earn financial rewards for passing all first year requirements within one year we find small and non-significant average effects of financial incentives on the pass rate and the numbers of collected credit points. There is however evidence that high ability students collect significantly more credit points when assigned to (larger) reward groups. Low ability students collect less credit points when assigned to larger reward groups. After three years these effects have increased, suggesting dynamic spillovers. The small average effect in the population is therefore the sum of a positive effect for high ability students and a (partly) off-setting negative effect for low ability students. A negative effect of financial incentives for less able individuals is in line with research from psychology and recent economic laboratory experiments which shows that external rewards may be detrimental for intrinsic motivation.

Omar Al-Ubaydli, John A List

Cited by*: 0 Downloads*: 60

A commonly held view is that laboratory experiments provide researchers with more "control" than natural field experiments, and that this advantage is to be balanced against the disadvantage that laboratory experiments are less generalizable. This paper presents a simple model that explores circumstances under which natural field experiments provide researchers with more control than laboratory experiments afford. This stems from the covertness of natural field experiments: laboratory experiments provide researchers with a high degree of control in the environment which participants agree to be experimental subjects. When participants systematically opt out of laboratory experiments, the researcher's ability to manipulate certain variables is limited. In contrast, natural field experiments bypass the participation decision altogether and allow for a potentially more diverse participant pool within the market of interest. We show one particular case where such selection is invaluable: when treatment effects interact with participant characteristics.

John A List

Cited by*: 13 Downloads*: 59

No abstract available

Juan-Camilo Cardenas

Cited by*: 2 Downloads*: 58

The use of experimental settings to observe human behaviour in a controlled environment of incentives, rules and institutions, has been widely used by the behavioural sciences for some time now, particularly by psychology and economics. In most cases the subjects are college students recruited from one to two hour decision making exercises in which, depending on their choices, they earn cash averaging US$ 20. In such exercises players face a set of feasible actions, rules and incentives (payoffs) involving different forms of social exchange with other people, and that in most cases involve some kind of externalities with incomplete contracts, such as in the case of common-pool resources situations. Depending on the ecological and institutional settings, the resource users face a set of feasible levels of extraction, a set of rules regarding the control or monitoring of individual use, and sometimes ways of imposing material or non-material costs or rewards to those breaking or following the rules. We brought the experimental lab to the field and invited about two hundred users of natural resources in three Columbian rural villages to participate in such decision making exercises and through these and other research instruments we learned about the ways they solve - or fail to - tragedies of the commons with different social institutions. Further, bringing the lab to the field allowed us to explore some of the limitations of existing models about human behavior and its consequences for designing policies for conserving ecosystems and improving social welfare.

David P Tracer

Cited by*: 0 Downloads*: 56

In order to test the proposition that performance in bargaining experiments is significantly affected by degree of monetarization, market integration, and relative westernization, a one-shot Ultimatum Game was conducted during the months of June and July 1998 in two villages in a rural region of Papua New Guinea: Anguganak (where the people speak Au) and Bogasip (where they speak Gnau). Although the villages are located in close proximity to one another and are relatively homogeneous culturally, and both subsist using a mixture of foraging and horticulture and have an elaborate system of exchange relationships, they are distinguished by their average degree of exposure to and integration in a cash-based economy, as well as their degree of education (both are greater in Anguganak). The different sections of the chapter provide: an ethnographic account of the two villages; a description of the experimental methods employed; a presentation and analysis of the results in terms of various indicators of wealth and market integration; and a discussion of the implications of the results. The level of offers made in the Ultimatum Game data combined for Anguganak and Bogasip were between those in western industrialized populations and the Machiguenga of Peru. There was some indication that variability in the level of market integration between the two village populations may have influenced the results, although they appeared to be equally influenced by local beliefs on reciprocity, generosity, and indebtedness, and an unfamiliarity with impersonal transactions.

Daniel Houser, John A List, Marco Piovesan, Anya Samek, Joachim Winter

Cited by*: 2 Downloads*: 56

Acts of dishonesty permeate life. Understanding their origins, and what mechanisms help to attenuate such acts is an under explored area of research. This study takes an economics approach to explore the propensity of individuals to act dishonestly across different economic environments. We begin by developing a simple model that highlights the channels through which one can increase or decrease dishonest acts. We lend empirical insights into this model by using an experiment that includes both parents and their young children as subjects. We find that the highest level of dishonesty occurs in settings where the parent acts alone and the dishonest act benefits the child rather than the parent. In this spirit, there is also an interesting effect of children on parents' behavior: in the child's presence, parents act more honestly, but there are gender differences. Parents act more dishonestly in front of sons than daughters. This finding has the potential of shedding light on the origins of the widely documented gender differences in cheating behavior observed among adults.

Juan-Camilo Cardenas

Cited by*: 1 Downloads*: 54

This paper discusses why running experiments in the field, outside of the university lab, can help us enrich the analysis we do of experimental data. One of the main arguments of the paper is that people participating in experiments, including students, do not come naked to the lab. They bring a great deal of rules of thumb, heuristics, values, prejudices, expectations and knowledge about the others participating, and about similar games, and use such information to make their decisions. The paper offers a short mention of relevant field experiments, and a more detailed look at field experiments conducted by the author, including a data set of CPR experiments run in 10 villages, between 2000 and 2002, with more than 1300 villagers in about 220 sessions, and replications with about 250 university students in more than 40 sessions. It offers then main lessons from bringing the lab to the field. Also there is a discussion of additional information gathered through different field instruments as well as community workshops with the participants to discuss the experimental data, the external validity of the experiments and their results, through parallels with their daily life. One of the lessons is that the greater variance in certain demographics about the experimental subjects might help explain variations in lab behavior that cannot be fully explained by the experimental institutions we study. Also, certain significant differences in behavior between villagers and students will be discussed.

Steven D Levitt, John A List

Cited by*: 58 Downloads*: 52

This study presents an overview of modern field experiments and their usage in economics. Our discussion focuses on three distinct periods of field experimentation that have influenced the economics literature. The first might well be thought of as the dawn of "field" experimentation: the work of Neyman and Fisher, who laid the experimental foundation in the 1920s and 1930s by conceptualizing randomization as an instrument to achieve identification via experimentation with agricultural plots. The second, the large-scale social experiments conducted by government agencies in the mid-twentieth century, moved the exploration from plots of land to groups of individuals. More recently, the nature and range of field experiments has expanded, with a diverse set of controlled experiments being completed outside of the typical laboratory environment. With this growth, the number and types of questions that can be explored using field experiments has grown tremendously. After discussing these three distinct phases, we speculate on the future of field experimental methods, a future that we envision including a strong collaborative effort with outside parties, most importantly private entities.

Sandra Polania-Reyes

Cited by*: 0 Downloads*: 52

Although social capital has been considered of the utmost importance for development it remains a complex and elusive concept. Different dimensions of social capital form part of the puzzle: cooperation is an individual other-regarding preference; social norms stem from beliefs about others' behavior; and the formation of such beliefs is mediated by attributes of the social network. To disentangle social capital we conduct an artefactual field experiment with 714 households at the inset of a Conditional Cash Transfer program in an urban context. To our knowledge this is the first paper that disentangles cooperation from coordination by conducting a minimum effort coordination game with Pareto ranked equilibria. Willingness to cooperate is teased out using a public goods game. By controlling for the density of network information we capture the role of connections, which is the third element of the mixture. We also look at the relation between our experimental data and traditional survey measures of social capital. Our identification strategy allows us to assess whether exposure to the program could be helping individuals overcome strategic uncertainty and select the most efficient equilibrium in the coordination game. The regressions suggest that the program helps overcome the coordination failure through different channels. In particular, the evidence suggests there is a spillover effect of the monetary incentive as it facilitates a social norm, which itself allows individuals to overcome the coordination failure. We rule out confounding factors such as individual socio-economic characteristics, social capital accumulation, willingness to cooperate and connectivity.

Bradley J Ruffle, Richard Sosis

Cited by*: 35 Downloads*: 51

The in-group-out-group bias is among the most widely documented and analyzed phenomenon in the social sciences. We conduct field experiments to test whether the bias extends to the cooperative behavior of one of the most successful modern collectives, the Israeli kibbutz. Despite their promise as universal cooperators, kibbutz members are more cooperative toward anonymous kibbutz members than they are toward anonymous city residents. In fact, when paired with city residents, kibbutz members' observed levels of cooperation are identical to those of city residents. Moreover, self-selection rather than kibbutz socialization largely accounts for the extent to which kibbutz members are cooperative.

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.

Inkyoung Hur, Sung-Hee Kim, Anya Samek, Ji Soo Yi

Cited by*: 0 Downloads*: 50

We investigate the effect of different interactive technologies on the decision-making process in an information search laboratory experiment. In our experiment, the participant makes a selection from a list of differently-valued objects with multiple attributes. We compare presenting information in static form to two methods of interactive presentation. In the first, the participant can manually sort objects by attribute, a capability similar to that found in spreadsheet software. In the second, we present an interactive visual tool that (1) automatically sorts all objects by attribute and (2) uses visual cues for comparisons. Manual sorting capability does not cause an improvement in decisions in this context. On the other hand, the visual tool increases the value of the objects selected by the participant and decreases time spent deliberating. We also find that our interactive presentations affect the decision-making process of participants by changing the number of intermediate options considered. Our results highlight the importance of investigating the effect of technology on information search, and suggest that appropriate interactive visual displays may improve search in practice.

Eric Floyd, John A List

Cited by*: 2 Downloads*: 49

The gold standard in the sciences is uncovering causal relationships. A growing literature in economics utilizes field experiments as a methodology to establish causality between variables. Taking lessons from the economics literature, this study provides an "A-to-Z" description of how to conduct field experiments in accounting and finance. We begin by providing a user's guide into what a field experiment is, what behavioral parameters field experiments identify, and how to efficiently generate and analyze experimental data. We then provide a discussion of extant field experiments that touch on important issues in accounting and finance, and we also review areas that have ample opportunities for future field experimental explorations. We conclude that the time is ripe for field experimentation to deepen our understanding of important issues in accounting and finance.

Ty Feldkamp, Jayson L Lusk, Ted C Schroeder

Cited by*: 57 Downloads*: 47

Despite increased use of experimental auctions, a myriad of different procedures are being employed without formal consideration of how the procedures might affect results. The study investigates the effect of several procedural issues on valuation estimates from experimental auctions. Results indicate the second price auction generates higher valuations than English, Becker-DeGroot-Marschak (BDM), and random nth price auctions, especially in latter bidding rounds, and that random nth price auction yields lower valuations than English and BDM auctions. We find that endowing subjects with a good prior to eliciting bids can have an impact on valuationsk, but the effect varies across auction mechanism.

Hans P Binswanger

Cited by*: 126 Downloads*: 47

No abstract available

Matthias Sutter

Cited by*: 20 Downloads*: 46

Economic decisions depend on both actual outcomes as well as perceived intentions. In this paper, we examine whether and how the relative importance of outcomes or intentions for economic decisions develops with age. We report the results of ultimatum games with children, teens and university students. We find that children and teens react systematically to perceived intentions, like university students do. However, children and teens reject unequal offers much more often than university students, indicating that outcomes are relatively more important than intentions for younger subjects. Hence, the relative importance of intentions increases with age.

Erwin Bulte, Andreas Kontoleon, John A List, Ty Turley, Maarten Voors

Cited by*: 9 Downloads*: 46

We implement a public goods game and a social intervention modeled after a public goods game in rural Sierra Leone near the Gola Forest Reserve. We also collect demographic, economic and forest conservation data on households in the area. We use this data to assess the mapping of social preferences from the artefactual field experiment (AFE) into real world behavior. We find evidence of heterogeneity in shifting factors between the AFE, the field experiment, and conservation outcomes. We also find evidence that social controls like war violence and witchcraft may explain some of this correlation.

John A List, Imran Rasul

Cited by*: 3 Downloads*: 46

We overview the use of field experiments in labor economics. We showcase studies that highlight the central advantages of this methodology, which include: (i) using economic theory to design the null and alternative hypotheses; (ii) engineering exogenous variation in real world economic environments to establish causal relations and learning about the underlying mechanisms; and (iii) engaging in primary data collection and often working closely with practitioners. To highlight the potential for field experiments to inform issues in labor economics, we organize our discussion around the individual life cycle. We therefore consider field experiments related to the accumulation of human capital, the demand and supply of labor, behavior within firms, and close with a brief discussion of the nascent literature of field experiments related to household decision-making.

John A List

Cited by*: 4 Downloads*: 46

No abstract available

Avner Ben-Ner, John A List, Louis Putterman, Anya Samek

Cited by*: 0 Downloads*: 43

An active area of research within the social sciences concerns the underlying motivation for sharing scarce resources and engaging in other pro-social actions. We develop a theoretical framework that sheds light on the developmental origins of social preferences by providing mechanisms through which parents transmit preferences for generosity to their children. Then, we conduct a field experiment with nearly 150 3-5 year old children and their parents, measuring (1) whether child and parent generosity is correlated, (2) whether children are influenced by their parents when making sharing decisions and (3) whether parents model generosity to children. We observe no correlation of independently measured parent and child sharing decisions at this young age. Yet, we find that apart from those choosing an equal allocation of resources between themselves and another child, children adjust their behaviors to narrow the gap with their parent's or other adult's choice. We find that fathers, and parents of initially generous children, increase their sharing when informed that their child will be shown their choice.