Papers - Natural
Damon Clark,
David Gill,
Victoria Prowse ,
Mark Rush
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Will college students who set goals for themselves work harder and achieve better outcomes? In theory, setting goals can help present-biased students to mitigate their self-control problem. In practice, there is little credible evidence on the causal effects on goal setting for college students. We report the result of two field experiments that involved almost four thousand college students in total. One experiments asked treated students to set goals for performance in the course; the other asked treated students to set goals for a particular task (completing online practice exams). Task-based goals had robust positive effects on the level of task completion, and task-based goals also increased course performance. We also find that performance-based goals had positive but small effects on course performance. We use a theoretical framework that builds on present bias and loss aversion to interpret our results. Since task-based goal setting is low-cost, scalable and logistically simple, we conclude that our findings have important implications for educational practice and future research.
Alec Brandon,
John A List,
Robert D Metcalfe,
Michael K Price,
Florian Rundhammer
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This study considers the response of household electricity consumption to social nudges during peak load events. Our investigation considers two social nudges. The first targets conservation during peak load events, while the second promotes aggregate conservation. Using data from a natural field experiment with 42,100 households, we find that both social nudges reduce peak load electricity consumption by 2 to 4% when implemented in isolation and by nearly 7% when implemented in combination. These findings suggest an important role for social nudges in the regulation of electricity markets and a limited role for crowd out effects.
Syon Bhanot
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Across domains, people struggle to follow through on their commitments. This can happen for many reasons, including dishonesty, forgetfulness, or insufficient intrinsic motivation. Social scientists have explored the reasons for persistent failures to follow through. suggesting that eliciting explicit promises can be an effective way to motivate action. This paper presents a field experiment that tests the effect of explicit promises, in the form of "honor pledges", on loan repayment rates. The experiment was conducted with LendUp, an online lender, and targeted 4,883 first time-borrowers with the firm. Individuals were randomized into four groups, with the following experimental treatments: (1) having no honor pledge to complete (control); (2) signing a given honor pledge; (3) re-typing the same honor pledge as in (2) before signing; and (4) coming up with a personal honor pledge to type and sign. I also randomized whether or not borrowers were reminded of the honor pledge they signed prior to repayment deadline. The results suggest that the honor pledge treatments had minimal impacts on repayment, and that reminders of the pledges were similarly ineffective. This suggests that borrowers who fail to repay loans do so not because of dishonesty or behavioral biases, but because they suffer from true financial hardship and are simply unable to repay.
Syon Bhanot
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Social norms messaging campaigns are increasingly used to influence human behavior, with social science research generally finding that they have modest but meaningful effects. One aspect of these campaigns in practice has been the inclusion of injunctive norms messaging, designed to convey a social judgement about one's behaviors (often in the form of encouraging or discouraging language, or a visual smiley or frowny face). While some prominent research has provided support for the use of such messaging as a tool for positive behavior change, causal evidence on the effect of injunctive norms messaging as a motivator (as opposed to just one part of a multifaceted messaging campaign) is limited. This paper presents a field experiment on water conservation behavior conducted by an organization in California, involving over 40,000 households, which provides some of the most precise evidence to date regarding the effect of injunctive norms on decision making. I find that not only do injunctive norms encourage conservation behavior, there is also no evidence that they discourage individuals from further attending norms messaging-regardless of whether the social judgement conveyed is negative or positive. Taken together, this suggests that injunctive norms are a useful tool in "nudge"-style campaigns tackling behavior change.
Maria De Paola,
Francesca Gioia,
Vincenzo Scoppa
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We ran a field experiment to investigate whether individual performance in teams depends on the gender of the leader. About 430 students from an Italian University took an intermediate exam that was partly evaluated on the basis of teamwork. Students were randomly matched in teams of three and in each team we randomly chose a leader with the task of coordinating the work of the team. We find a positive and significant effect of female leadership on team performance. This effect is driven by the higher performance of team members in female led teams rather than due to an improvement in the leader's performance. We also find that, in spite of the higher performance of female led teams, male members tend to evaluate female leaders as less effective, whereas female members are more sympathetic towards them.
Rudolf Kerschbamer,
Daniel Neururer,
Matthias Sutter
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Honesty is a fundamental pillar for cooperation in human societies and thus for their economic welfare. However, humans do not always act in an honest way. Here, we examine how insurance coverage affects the degree of honesty in credence good markets. Such markets are plagued by strong incentives for fraudulent behavior of sellers, resulting in estimated annual costs of billions of dollars to costumers and the society as a whole. Prime examples of credence goods are all kinds of repair services, the provision of medical treatments, the sale of software programs, and the provision of taxi rides in unfamiliar cities. We examine in a natural field experiment how computer repair shops take advantage of costumers' insurance for repair costs. In a control treatment, the average repair price is about EUR 70, whereas the repair bill increases by more than 80% when the service provider is informed that an insurance would reimburse the bill. Our design allows decomposing the sources of this economically impressive difference, showing that it is mainly due to the overprovision of parts and overcharging of working time. A survey among repair shops shows that the higher bills are mainly ascribed to insured costumers being less likely to be concerned about minimizing costs because a third party (the insurer) pays the bill. Overall, our results strongly suggest that insurance coverage greatly increases the extent of dishonesty in important sectors of the economy with potentially huge costs to costumers and whole economies.
Loukas Balafoutas,
Nikos Nikiforakis,
Bettina Rockenbach
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The degree of human cooperation among strangers is a major evolutionary puzzle. A prominent explanation is that cooperation maintained because many individuals have a predisposition to punish those violating group-beneficial norms. A critical condition for cooperation to evolve in evolutionary models is that punishment increases with the severity of the violation. Here we present evidence from a field experiment with real-life interactions that, unlike in lab experiments, altruistic punishment does not increase with the severity of the violation, regardless of whether it is direct (confronting a violator) or indirect (withholding help). We also document growing concerns for counter-punishment as the severity of the violation increases, indicating that the marginal cost of direct punishment increases with the severity of violations. The evidence suggests that altruistic punishment may not provide appropriate incentives to deter large violations. Our findings thus offer a rationale for the emergence of formal institutions for prompting large-scale cooperation among strangers.
Amanda Bayer,
Syon Bhanot,
Fernando Lozano
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No abstract available
Syon Bhanot
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Perception of peer rank, or how we can perform relative to out peers, can be a powerful motivator. While research exists on the effect of social information on decision making, there is less work on how ranked comparisons with our peers influence our behavior. This paper outlines a field experiment conducted with 3896 households in Castro Valley, California, which uses household mailers with various forms of social information and peer rank messaging to motivate water conservation. The experiment tests the effect of a visible peer rank on water use, and how the competitive framing of rank information influences behavioral response. The results show that households with relatively low or high water use in the pre-treatment period responded differently to how rank information was framed. I find that a neutrally-framed peer rank caused a small "boomerang effect" (i.e., an increase in average water use) for low water households, but this effect was eliminated by competitive framing. At the same time, a competitively-framed peer rank demotivated high water use households, increasing their average water use over the full period of the experiment. This result is supported by evidence that the competitive frame on rank information increased water use for households who ranked "last" in the peer group - a detrimental "last place effect" from competitively-framed rankings.
John A List
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No abstract available