AEA RCT Registry currently lists 11788 studies with locations in 170 countries.
Bangladesh’s ~7,000 brick kilns contribute substantially to air pollution, responsible for 11% of the country’s particulate matter, 22% of black carbon, and 17% of total annual CO2 emissions . In our earlier work, we developed an intervention, Zigzag 2.0 (ZZK2.0), an intervention offering kiln owners and operators low-cost training and technical support in kiln management and insulation. In a randomized controlled trial with 276 kilns in Khulna Division (2022–2023), 65% adopted the two most important components. Adoption led to 24% less coal use per 100,000 bricks, with 21% reductions in both CO₂ and PM2.5 emissions. At the request of the Ministry of Environment, Forest and Climate Change, icddr,b scaled the intervention across 1000 kilns in 2023-25. Yet, brick kiln workers represen...
This study investigates the primary motivations for stablecoin adoption among households in Japan, particularly in the context of a rapidly evolving regulatory landscape. Despite the increasing prevalence of dollar-linked digital assets, empirical evidence remains limited regarding whether consumers view these assets as speculative investments or as functional alternatives to traditional banking for payments and remittances. Building on the recent implementation of the GENIUS Act of 2025, which established a federal framework for stablecoin reserves, this research utilizes a comprehensive survey to analyze household behavior. We examine key drivers such as transaction cost reduction, 24/7 settlement speeds, and the role of stablecoins in the "gig economy" for income receipt. Furthermore...
In this study we investigate the interaction of firms’ price and wage setting behaviour and their inflation expectations. This wave is conducted to provide increase general validity of our previous RCT and control for additional aspects (e.g. cost expectations). In particular, we study how inflation expectations are passed through into prices and wages. While theoretically there is a broad consensus about the relevance of the price setting of firms for inflation as well as economic activity, we know relatively little about how and to what extent firms build their inflation expectations into their prices and wages. We analyse these questions using a new firm-level survey with an RCT design that we conduct in Switzerland. Switzerland provides an ideal setting as it has a history of low a...
This study uses a cluster-randomized design to evaluate the impact of an educational workshop on attitudes toward pollution taxation among university students. Seven workshop sites were randomized into two conditions: (i) a Test-Before-Workshop group, in which participants completed the survey instrument before attending the workshop; and (ii) a Test-After-Workshop group, in which participants completed the same survey instrument immediately after the workshop. To provide a true untreated comparison, a third group of students from similar campuses who did not attend any workshop completed the same survey during the same period. The primary outcome is variation in attitudes toward pollution taxation across these three groups, enabling estimation of both workshop effects and baseline diff...
Social protection programs in Sierra Leone aim at supporting poor households, but current targeting tools often leave out food insecure households. Partnering with the government of Sierra Leone, we test various tools for better including food insecure households. Specifically, we test proxy-means testing and CBT instruments designed at selecting food insecure households, and compare these with the traditional PMT used by the government.
Parenthood continues to affect mothers’ and fathers’ careers differently. Many countries have introduced paternity leave (PL) policies to reduce the economic costs of childbirth for mothers and to promote more equal sharing of childcare. Yet, despite generous entitlements, PL take-up remains limited. This project investigates the barriers that discourage PL take-up, distinguishing between (i) lack of information, (ii) career concerns, (iii) stereotypes, and (iv) organizational challenges. We examine whether these barriers are real or (mis)perceived, and potential channels of norm change in the workplace. To do so, we conduct a national survey of male employees in Italy, complemented by a smaller female control sample, to measure knowledge, perceptions, and beliefs about PL. We then test...
Our study asks two questions. One, do extremely large, intervention-driven early learning gains in foundational literacy and numeracy, achieved among primary school-aged children in extremely income-poor settings persist or fade out over time? Two, do these gains have any knock-on effects for families and communities? We answer these questions by following up with participants from studies in The Gambia and Guinea Bissau which showed large learning gains from bundled interventions targeting early grade reading and learning skills. Several years after the conclusion of these studies, we will return to find and interview the original trial participants enrolled in the studies, their families, and leaders in their schools and their villages. We will also administer tests of learning, both ...
Can corporations do evil without being run by evil people? If so, why? This study explores these questions through a survey experiment. Participants face a moral trade-off involving a financially beneficial yet ethically costly decision. The experimental design randomly varies contextual and structural features of the decision to examine how each factor influences the decision-making process. In addition, we aim to analyze individual heterogeneity using measures from moral psychology to understand why participants differ in their responses. The goal is to shed light on how context and incentives shape moral judgment.
This survey explores credit card interest cost misperceptions among U.S. credit card holders.
Collective action problems pose significant barriers to addressing environmental problems in developing countries. In this project, we explore potential solutions to these challenges within the context of a rural area in a developing country. Our experiments compare the standard education approach which disseminates information about the environmental problem with three novel interventions. The first equips participants with a tailored set of tools aimed at enhancing cooperation and social capital within the community and thereby facilitating collective action. The second treatment adds a means for the community to monitor the environmental problem in public spaces. In the final variant, we provide additional information that enables the community to better understand their own exposure...