AEA RCT Registry currently lists 12034 studies with locations in 170 countries.

Most Recently Registered Trials

  • Environmental Regulation and Barriers to Technology Adoption: Experimental Evidence from Urban Viet Nam
    Last registered on May 05, 2026

    This randomised evaluation studies whether low-cost information interventions and financial incentives can increase voluntary adoption of privately beneficial, emissions-reducing motorcycle maintenance in a weak enforcement context. Air pollution disproportionately affects developing countries, where 91% of related deaths occur, with the urban poor — those most exposed to airborne particulate matter — facing the greatest health risks. Despite its urgency, little is known about how to effectively reduce pollution in weak enforcement contexts. In Viet Nam, motorcycles account for the vast majority of transport-related emissions, yet on-road emissions remain largely unregulated and uptake of emissions-reducing maintenance is low, despite potential private fuel cost savings. The study is...

  • Visibility as Vulnerability: Transgender Passing Privilege and Hiring Discrimination
    Last registered on May 05, 2026

    Transgender people experience worse labor market outcomes compared to similar cisgender peers; recently, research has found causal evidence of discrimination against this group in multiple settings. I propose a field experiment and a set of survey experiments involving fictitious A.I.-generated headshots, where the extent to which individuals “pass” as cisgender is experimentally manipulated, as is whether applicants indirectly discloses their transgender identity via a male-to-female name change. I aim to measure (1) discrimination against transgender women, (2) whether not "passing" as cisgender exacerbates discrimination (i.e., is there "passing privilege"), and (3) what mechanisms may be driving discrimination.

  • Experiments on survey measurement error and high frequency data collection in Bangladesh
    Last registered on May 05, 2026

    We use a series of survey experiments embedded over multiple rounds of a panel survey to study the sources, causes, and remedies of measurement error in survey data. The topical focus of our surveys is on living standards, extreme climate events, and their interaction with welfare at the household and intra-household level. Within each survey round, we randomize survey mode (in-person vs. over the phone), collect a series of data quality proxies, and conduct a range of experiments to study mechanisms.

  • Risk Aversion and Costly Information Acquisition: An Experimental Study
    Last registered on May 04, 2026

    The explosion of information raises questions about how individuals search for and process it. To make better decisions, people search for relevant information, but this process is costly. Individuals must decide what kind of information to acquire and when to stop searching for more. This study uses online experiments to examine how the stake size and the complexity of information-search problems affect individuals' information search behavior. The experimental results are also used to distinguish between competing theoretical models of information search.

  • Review Marketing Content for Small Businesses
    Last registered on May 04, 2026

    This study investigates the effectiveness of social media posts from small businesses.

  • A Parallel-World Experiment on Ranking Rules, Quality Allocation, Concentration, and Path Dependence in the Graze Trending News feed
    Last registered on May 04, 2026

    Online news feeds are responsive attention markets: the content shown to users affects the interactions that determine future rankings. This feedback loop can generate cumulative advantage, concentrating attention among incumbent publishers and making outcomes sensitive to early luck. We propose a randomized parallel-world field experiment on the Graze Trending News feed to test how ranking design shapes these dynamics. Users are persistently assigned to one of nine worlds implementing three ranking rules: a status-quo local-interaction rule, a lightly smoothed interaction-per-impression rule, and a heavily smoothed interaction-per-impression rule. Because items decay out of the feed within 12 hours, the experiment consists of repeated short-lived attention markets. The primary outcomes...

  • The impact of a “progress with your goals” curriculum and its cultural framing among female microfinance clients in Vietnam
    Last registered on May 04, 2026

    Development interventions are often designed from independent perspectives that prioritize individualism, personal achievement and self-reliance, while individuals in non-Western countries are more likely to relate to interdependent values such as collective well-being, collaboration and traditions. Inspired by previous research, we have developed a “progress with your goals” curriculum that aims to help women to save. We created two versions, one incorporates an independent framing and the other incorporates an interdependent framing. Together with Tinh Thuong Microfinance Organization (TYM), a Vietnamese microfinance institution, we organize a field experiment to study the effect of the training and its different framings on women’s savings and preferences for competition.

  • Low Promotability Tasks Among Young Parents
    Last registered on May 04, 2026

    Around the world, women continue to earn less than men and have worse labor market outcomes, and much of this gap emerges upon parenthood. One potential mechanism of penalties in the labour market for those parents that continue to work after childbirth is the unequal assignment and acceptance of low-promotability tasks, that is, tasks that benefit the organization but carry little weight in performance evaluations and promotion decisions. This study examines whether gender and parenthood shape both the supply and the demand of low-promotability tasks in a broad working population. We implement a survey experiment in Italy with workers and managers. On the supply side, workers are given the opportunity to complete an optional task that benefits (mainly) students but does not affect t...

  • Reducing energy arrears
    Last registered on May 04, 2026

    This study uses data from four natural field experiments conducted with a gas utility in California. These experiments cover around 700,000 customers. Each experiment tests interventions that are aimed at increasing payment compliance and reducing the risk of disconnection. The first three experiments study reminder design at early stages of the arrears process. They ask if one more reminder increases repayment, whether SMS, email, and outbound calls perform differently, how framing nonpayment as an active choice affects collections, if adding a payment prompt to the regular bill matters, and whether reminders can be improved by making them shorter and more direct. The fourth experiment covers a much later stage in the collections process and examines whether it is more effective to ask...

  • Bundled behavioral messages and course completion among online adult learners
    Last registered on May 04, 2026

    This randomized controlled trial evaluates whether a bundle of behavioral messages, delivered during the rollout of an online training program, can increase course completion among online adult learners in Colombia. The study targets adult students who register for a fully asynchronous self-efficacy course composed of nine sessions and randomly assigns them to one of two groups: (1) a control group (NOINFO) that receives only minimal session-launch notifications during course delivery; and (2) a treatment group (INFO) that receives, for each new session, an email bundling a personalized commitment reminder referencing the student’s prior decision to enroll, information about the labor-market value of certified self-efficacy skills, and social proof in the form of completion counts and a...