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AEA RCT Registry currently lists 3968 studies with locations in 152 countries.

Most Recently Registered Trials

  • Direct and cross-resource spillover effects of social information about water usage
    Last registered on September 30, 2020

    Social information programs are widely used by policy makers to nudge behavioural change. Our first research question looks at the direct impact of a customized household report about water usage on water consumption in Italy. Our second research question relates to the spillover effects of the water report on the individual consumption of other resources, such as gas and electricity. The third research question is to assess the effect of receiving different nudges. In our case, people receive different social information on different resources.

  • The Impact of Personalized Telephone Outreach on Health Insurance Choices
    Last registered on September 30, 2020

    Many Americans have a limited understanding or information about health insurance. Limited awareness of plan options, the availability of subsidies, and plan costs make enrolling and choosing plans difficult. The goal of the project is to assess whether a personalized information intervention can help health insurance marketplaces improve take-up and choice quality, and improve market stability. Specifically, the project will shed light on the following questions: I. What is the effect of personalized phone outreach on enrollment (take-up) and the risk mix of consumers in the marketplace? II. How do personalized phone calls affect consumers’ decision of which plan to choose? III. Are personalized outbound calls particularly effective with certain hard-to-reach populations? IV. Phon...

  • Improving children's executive functions: evidence from Brazil
    Last registered on September 30, 2020

    In this RCT, we test whether martial arts can provide a stimulating environment for boosting children’s executive functions. We explore a preschool program that randomly assigned schools to receive capoeira classes. Instruments measure inhibitory control, working memory and cognitive flexibility.

  • Learning to Appropriately Use Technologies: Evidence from Fertilizer Application in China
    Last registered on September 30, 2020

    While under-adoption of technology in agriculture is widely discussed, the inappropriate use of technology/input has become a matter of concern. We find strong evidence that farmers in China tend to overuse nitrogen fertilizer and underuse fertilizers in other dimensions, including phosphorus and potassium. Such decision making is affected by the crops' growing stages before the ripening, in which nitrogen provides observable signals on plants while phosphorus and potassium do not. We propose two randomized controlled trials to examine the effects of noticing/improved learning on the appropriate adoption of fertilizers. Our interventions consist in providing soil testing information, fertilizer recommendations, and technologies to facility farmer's learning.

  • Effect of Emotions on Cognitive Process: An Experimental Study of Graduate and Undergraduate Students
    Last registered on September 30, 2020

    Objective: Current study aimed to investigate the effect of various mood conditions (Sad, Neutral & Laughter) on the cognitive abilities of Graduate and Under-graduate students. Method: A 1-session, five trial (pre, post 1 post 2 post 3 post 4) , double-blind, within group design, randomised controlled trial was used for the current experiment. Throughout the session of five trails, three mood condition have been administered step by step after completing International Positive and Negative affect Schedule (I-PANAS-SF), Montreal cognitive assessment (MOCA) to examine the effect of various mood on affect and cognitive process. Three mood condition Sad, Neutral & Laughter were performed on Graduate and Under graduate students (N=77), each with a double blind, crossover within design as...

  • Immigration Reform & Shortages, The effet of randomized bonus scheme on worker productivity
    Last registered on September 30, 2020

    In much of the United States there are increasing concerns over the availability of agricultural labor. In 2017, 68% of US based agricultural laborers were from Mexico, and in California alone, 89\% were from Mexico, while only 9\% were U.S. born. Many of these workers are now transitioning away farm labor either because of retirement, or they are moving to other labor markets (e.g. construction). In addition, there are few replacements for these workers. This study aims to estimate the casual estimates of worker productivity in response to bonus changes. We randomize the sequence of bonus payments assigned to each crew and worker for the duration of five weeks in order to estimate a) the productivity response to said bonuses and b) the peer worker effects of bonuses within each crew. ...

  • The Functioning of Self-Governing Sharing Economies.
    Last registered on September 30, 2020

    New forms of market mechanisms in which participants share products are becoming increasingly popular. In this project, we address the question whether not-for-profit initiatives in sharing economies, where at most informal rules are at play, can sustain in the long-run and to what extent free-riding occurs. The experimental intervention, which we preregister, is part of a larger study in which we collect field data. For the experimental part, a sample of local markets is randomized into a treatment and control group. After baseline field data have been collected, members of the treatment group receive a positive supply shock and we test whether this shock has a transitory or more permanent effect.

  • Can Appeals Identify and Exploit Donor Heterogeneity?
    Last registered on September 29, 2020

    Charitable fundraisers frequently announce giving by others, and research shows that this can increase donations. However, this mechanism may not put information about peers to the most efficient use if it is costly to inform individuals who are indifferent to peer actions or if it causes some individuals to give less. We investigate heterogeneity in charitable responses to peer decisions, testing whether a fundraiser can identify donor types. To do so, we run a pair of online surveys in which a panel of subjects can donate some of their earnings. The baseline solicitation contains a simple elicitation of beliefs and contingent preferences. We use these responses to describe heterogeneity in the effects of information-about-peers treatments that we randomly assign in the second solicita...

  • Health Care Opinion Research 1
    Last registered on September 29, 2020

    The objective of this experiment is to investigate whether vignettes/stories about people suffering because of the Covid-19 pandemic can evoke (1) emotional reactions and (2) increase support for health polices to increase insurance coverage.

  • Why are firms slow to adopt profitable business practices? Evidence on the roles of present bias, forgetfulness, and overconfidence about memory
    Last registered on September 29, 2020

    Why are micro, small, and medium enterprises slow to adopt profitable business practices? We test the role of three behavioral biases: present bias, limited memory, and overconfidence about memory. In partnership with a payments financial technology (FinTech) provider in Mexico, we randomly offer businesses that are already users of the payments technology the opportunity to be charged a lower merchant fee for each payment they receive. We randomly vary whether the firms face a deadline to register for this lower fee, whether they receive a reminder, and whether the reminder is anticipated (i.e., whether we tell them in advance that they will receive a reminder on a certain date).