AEA RCT Registry currently lists 11902 studies with locations in 170 countries.
This study is a second wave of a previously conducted experiment in which we surveyed three sections of MFA students at LBS. The design and randomization procedures are unchanged; the second wave is slightly streamlined to reduce completion time and includes fictitious companies instead of being based on real data. In the first wave, we anticipated that a sample of roughly 300 students might provide limited statistical power. The results were directionally consistent with our hypotheses but only weakly significant (typically at the 10% level). We are therefore re-running the same experiment in a very similar population—MBA & MiM students at LBS—to increase the sample size and improve statistical precision. Below is the abstract for the second wave of the experiment. Participants co...
Traditional fired clay bricks dominate the construction sector in Bangladesh, contributing significantly to air pollution and topsoil degradation. Although cleaner, non-fired alternatives like concrete blocks exist, their adoption remains low. This study evaluates whether reducing information frictions and capacity constraints can accelerate adoption of blocks. We implement a three-arm cluster randomized controlled trial across 66 upazilas (sub-districts) in 22 districts (total baseline sample N = 3,056 respondents). Upazilas are randomized within district into: (i) Control (no intervention), (ii) Treatment 1 (T1): information workshop on block usage plus a block supplier directory targeted to contractors, procurement officers, and private clients, and (iii) Treatment 2 (T2): T1 plus ha...
This randomized controlled trial evaluates whether nudges can increase take-up and completion of an online training program focused on self-efficacy among online adult learners in Colombia. The study targets 1,626 online students who are randomly assigned to one of four groups: (1) a control group receiving a standard invitation; (2) a career benefit treatment, where the invitation emphasizes the value of the course for career progression and professional opportunities; (3) a social proof treatment, where the invitation includes a message highlighting that many students have previously completed the course with positive outcomes; and (4) a combined treatment including both messages. The primary outcomes are course take-up (completing the online registration during the enrollment window)...
In Utah, despite most adults believing climate change is real, many do not think it will affect them personally. This disconnect is largely due to the absence of effective climate communication tools that make complex scientific information relatable and locally relevant. To address this gap, we developed the Utah Climate Access Portal (UCAP), a web-based platform that combines high-resolution, Utah-specific climate projections with place-based storytelling to help residents understand how climate change affects their communities. This study tests whether interacting with UCAP improves climate literacy and shifts attitudes compared to reading a traditional scientific report. Using a randomized controlled trial with undergraduate students at Utah State University, participants are rando...
A large literature uses information-provision experiments to study how factual cues shift preferences over public spending levels, but less is known about whether such cues also shift support for the institutional rules that govern fiscal allocations. We test this in the context of Korea's Local Education Finance Grant (LEFG), which earmarks a fixed share of internal tax revenue for education. In a nationally representative online experiment with approximately 3,000 Korean adults (ages 19–65), we randomize respondents to a placebo control or one of three information treatments—expenditure efficiency under demographic change, international reference points, and cross-sector budget trade-offs—and measure their fiscal preferences and attitudes toward the LEFG formula. We plan to examine he...
This study examines how people think about income inequality and whether these views differ across individuals with different mindsets about its causes. It measures respondents’ perceptions of the income distribution, related economic beliefs, and views about fairness and inequality. Using a randomized survey experiment, the study tests whether different kinds of information and policy-related prompts affect these beliefs and whether responses vary systematically between more individualist and more structuralist respondents. The project aims to better understand how mindsets shape perceptions of inequality and belief updating.
This study investigates how the spatial presentation of time influences people's economic decision-making, specifically their time preferences.In this study, participants will complete a series of inter-temporal choices. The primary objective is to examine whether different spatial representations of time can alter the discount rates people apply to future rewards. The findings will contribute to a deeper understanding of the psychological and environmental factors that shape patient versus impatient financial behaviors.
This study will evaluate the causal impact of an in-school sexual education program on adolescents' sexual knowledge, attitudes, behavior, and health outcomes. The project will be structured into two articles, examining short-run and long-run effects, respectively. We will implement a randomized controlled trial (RCT) across Hungarian secondary schools with a history of teenage pregnancies. The intervention consists of interactive, 90-minute group sessions delivered by trained educators. These sessions go beyond traditional sex education by emphasizing self-efficacy, communication skills, and boundary-setting. We will combine self-reported survey data collected at baseline and one year after the intervention with administrative health records to measure short- and long-term effects on p...
This study examines how individuals perceive the effect of income on happiness. We conduct an information-provision experiment that presents scientific evidence on the relationship between income and happiness. We measure the treatment’s effects on both beliefs and behavior, including hypothetical choices and real-world decisions.
Widespread adoption of improved seed varieties is vital for food security, but many countries lack capacity to produce and multiply improved varieties at scale. This issue is particularly salient for vegetatively propagated crops such as the crop of interest in this study (cassava), since planting materials are heavy and must be planted soon after harvest, and so multiplication of such crops must be done locally. We experimentally provide cooperatives with certified planting materials and offer them the opportunity to be certified by the Rwandan inspection agency. We measure outcomes for both the cooperatives themselves as well as for neighboring farmers who now have the opportunity to purchase improved cuttings from the treatment group. At the cooperative level, our primary outcomes a...