Papers - Artefactual

Anya Samek

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Reputation systems provide decision support for e-commerce. A shortcoming of existing systems is that all transactions are rated equally, and the impact of reputation systems for differently valued goods is not well understood. In an experiment, we study a heterogeneous good market. We find that the reputation system increases surplus by increasing transactions in the high value good. Allowing for heterogeneous goods reduces information, as buyers cannot determine whether the seller previously transacted in low/high value goods. We test a new system, which displays reputation separately for each good. We provide evidence that this additional information is utilized in decisions.

John A List, Anya Samek, Michael K Price

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No abstract available

Matthew McCarter, Anya Samek, Roman Sheremeta

Cited by*: 5 Downloads*: 2

The current social dilemma literature lacks theoretical consensus regarding how individuals behave when facing multiple simultaneous social dilemmas. The divided-loyalty hypothesis, from organizational theory, predicts that cooperation will decline as individuals experience multiple social dilemmas with different compared to the same group members. The conditional-cooperation hypothesis, from behavioral economics, predicts that cooperation will increase as individuals experience multiple social dilemmas with different compared to the same group members. We employ a laboratory experiment to create consensus between these literatures and find support for the conditional-cooperation hypothesis. The positive effect of interacting with different group members comes from participants having an opportunity to shift their cooperative behavior from the less cooperative to the more cooperative group.

Omar Al-Ubaydli, Uri Gneezy, John A List, Min Sok Lee

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A stylized fact is that agents respond more acutely to negative than positive stimuli. Such findings have generated insights on mechanism-design, have been featured prominently in policymaking, and more generally have led to discussions of whether preferences are defined over consumption levels or changes in consumption. This study reconsiders this stylized fact. In doing so, it provides insights into an important domain wherein positive stimuli induce a greater response than negative stimuli: a principal-agent game with reputational considerations and with the agent on the market's short end. This common setting represents an important feature of labor markets with involuntary unemployment.

Anya Samek, Roman Sheremeta

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Studies show that identifying contributors significantly increases contributions to public goods. In practice, however, viewing identifiable information is costly, which may discourage people from accessing such information. To address this question, we design a public goods experiment in which participants can pay a fee to view information about identities and corresponding contributions of their group members. We then compare this to a treatment in which there is no identifiable information, and a treatment in which all contributors are freely identified. Our main findings are that: (1) contributions in the treatment with costly information are as high as those in the treatment with free information, (2) participants choose to view the information about 10% of the time, and (3) being a high contributor is positively correlated with choosing to view identifiable information about others. Thus, it seems that having access to information is important even when such information is rarely viewed. Our findings have practical implications for non-profit organizations with a large pool of donors and for designers of recognition systems, especially in online communities with many participants.

Robert Berrens , Alok Bohara, Joe Kerkvliet, John A List

Cited by*: 22 Downloads*: 1

n/a

Omar Al-Ubaydli, John A List

Cited by*: 2 Downloads*: 1

Economists are increasingly turning to the experimental method as a means to estimate causal effects. By using randomization to identify key treatment effects, theories previously viewed as untestable are now scrutinized, efficacy of public policies are now more easily verified, and stakeholders can swiftly add empirical evidence to aid their decision-making. This study provides an overview of experimental methods in economics, with a special focus on developing an economic theory of generalizability. Given that field experiments are in their infancy, our secondary focus pertains to a discussion of the various parameters that they identify, and how they add to scientific knowledge. We conclude that until we conduct more field experiments that build a bridge between the lab and the naturally-occurring settings of interest we cannot begin to make strong conclusions empirically on the crucial question of generalizability from the lab to the field.

Michael J. Seiler, Eric Walden

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Great debate is being waged between whether strategic mortgage defaulters follow a herd for social reasons or mimic others' behavior for informational gain. Using functional magnetic resonance imaging (fMRI), the latest neurological technology allowing for observation of brain activity during strategic mortgage default decision-making, we find that when defaulters learn of peer default behavior, they acknowledge the social component of the decision, but feel freer to make their own decisions. Alternatively, when observing the behavior of a maven (real estate expert), borrowers still consider the social aspect of the decision (although to a lesser extent), but ultimately follow the maven who presumably possesses a greater information set. Alarmingly, borrowers only significantly follow the herd when mavens advocate strategic default, not when they recommend against it.

Iwan Barankay, Magnus Johannesson, John A List, Richard Friberg, Matti Liski, Kjetil Storesletten

Cited by*: 1 Downloads*: 1

No abstract available

James Andreoni, John A List

Cited by*: 0 Downloads*: 0

No abstract available

Antoni Bosch-Domenech, Rosemarie Nagel, Juan V Sanchez-Andres

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Alzheimer patients in the early stage of the disease were asked to participate in the Dictator game, a game in which each subject has to decide how to allocate a certain amount of money between himself and another person. The game allows the experimenter to view the influence of social norms and preferences on the decision-making process. When the data from the experiment are compared with the results of an identical experiment involving two control groups with similar ages and social background, one group with Mild Cognitive Impairment patients, the other with healthy subjects, it appears that the results from the three groups are statistically undistinguishable. This is an indication that Stage I AD patients are as capable of making decisions involving social norms and preferences as any person of their age, and that whatever brain structures are affected by the disease, they do not include, at this stage, the neural basis of cooperation-enhancing social interactions.

Michael J. Seiler, Eric Walden

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In this study, we use functional magnetic resonance imaging (fMRI) to understand how homeowners process non-financial information when considering strategic mortgage default. We find that borrowers initially attempt to inhibit their knee-jerk reaction to retaliate against a lender who has engaged in egregious lending practices when compared to a financially conservative lender. Moreover, when defaults are rare, borrowers are less likely to default because violating the social norm results in feelings of disgust. Finally, when a lender refuses a loan modification, the borrower is found to seek retribution. Interestingly, granting even a modest loan modification removes the desire of homeowners to seek retribution towards their lender no matter what their impression of the lender may be. The results carry a number of policy implications.

Michael J. Seiler, Eric Walden

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This study examines strategic mortgage default on a neurological level. Specifically, we test two mainstream behavioral finance/economic theories: sunk cost fallacy and cognitive dissonance. Using fMRI technology, we identify a number of substrates within the brain that provide a neurobiological explanation for why some homeowners exercise their mortgage put option while others do not. We find that borrowers rationally do not suffer from the sunk cost fallacy as it relates to strategic default in that stye significantly prioritize their negative equity position over the amount of their initial down payment. We do, however, find neurological support that cognitive dissonance is relevant in homeowners' thought processes as they toil with the hesitancy brought on by the belief that strategic default is immortal against strong financial incentive to walk away from a substantially underwater mortgage.

Andreas Lange, John A List, Michael K Price

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Auction theory represents one of the richest areas of research in economics over the past three decades. Yet, whether, and to what extent, the introduction of secondary resale markets influences bidding behavior in sealed bid first-price auctions remains under researched. This study begins by examining field data from a unique data set that includes nearly 3,000 auctions (over 10,000 individual bids) for cutting rights of standing timber in British Columbia from 1996-2000. In comparing bidding patterns across agents who are likely to have resale opportunities with those who likely do not, we find evidence that is consistent with theory. Critical evaluation of the reduced-form bidding model, however, reveals that sharp tests of the theoretical predictions are not possible because several other differences may exist across these bidder types. We therefore use a laboratory experiment to examine if the resale opportunity by itself can have the predicted theoretical effect. We find that while it does have the predicted effect, a theoretical model based on risk-averse bidders explains the overall data patterns more accurately than a model based on risk-neutral bidders. Beyond testing theory, the paper highlights the inferential power of combining naturally occurring data with laboratory data.