AEA RCT Registry currently lists 12370 studies with locations in 171 countries.
In partnership with a private vocational institute in Dakar, Senegal, we will conduct a randomised controlled trial (RCT) to evaluate the impact of expanding vocational training (VT) opportunities for women in traditionally male-dominated sectors such as mechanics and electricity. The institute currently serves predominantly male students, but there is strong interest in increasing the enrolment of female students. Focus group discussions and descriptive data suggest there is pent-up demand among women for such training. However, both financial and non-financial barriers may limit participation. The ability to pay is heterogeneous, and additional non-financial constraints include concerns about employment prospects, balancing work with family responsibilities, and fears that entering m...
Times of economic crises raise questions about how to distribute burdens and support, evoking a debate about what is fair. While previous research has shown that, even in economically stable times, there exists a plurality of fairness views, it is less clear how and whether the latter react to a changing economic environment. In this project, we use a series of experiments to explore whether negative income shocks affect individual preferences for redistribution. The experiment consists of two parts: a production and a redistribution stage. After having earned an endowment, participants are paired in groups of two and given the opportunity to redistribute income. We then explore the effect of negative income shocks, varying both who is affected and what is known about the experiences of...
Background: Self-control, self-defence self-efficacy, and mental resilience are among the fundamental psychological determinants of performance and competitive endurance in combat sports. However, scientific evidence regarding structured, evidence-based psychological intervention programs for professional female wrestlers is limited. This study aimed to examine the effect of a structured psychological intervention program based on psychological skills training on the levels of self-control, self-defence self-efficacy, and mental resilience in professional female wrestlers. Method: The research was conducted using a randomized controlled pre-test–post-test experimental design. A total of 30 professional female wrestlers aged between 18 and 25 participated in the study. Participants were...
We randomize different forms of relief to small business borrowers during a period of crisis (defined in our setting as a substantial increase in input cost) to provide evidence on how to use contracting to recover from a common (cost) shock. Our Lender provides collateralized credit to business owners that operate a transportation business in South Africa. In light of the large gas price increase in 2026, we collaborate with the Lender to provide borrowers with either unconditional relief; or conditional relief --- conditional either on effort exertion or on loan repayment. The objective of the experiment is to study the impact of different forms of relief on short-run versus long-run borrower repayment and effort.
This study reports a school-randomised field experiment on whether teacher-mediated, generative-AI-supported revision improves student learning in resource-constrained government schools. From an eligible pool of schools provided by the Ministry of Education, Government of Rajasthan, we randomised 43 schools to treatment (22) and control (21). In treatment schools, teachers used a curriculum-aligned custom GPT system on classroom smartboards during pre-examination revision in mathematics and science for Classes 7 and 9. At the beginning of each session, the system offered three modules (concept revision, practice questions, and doubt resolution) and generated responses live at three difficulty levels (basic, intermediate, and advanced), enabling within-classroom differentiation that con...
This pre-analysis plan describes a randomized controlled trial evaluating an AI-powered mental health chatbot among undergraduate students in India’s public universities. Using baseline data from 4,489 students across seven colleges in Delhi, we document a high prevalence of depression, anxiety, and loneliness, and low rates of mental health care-seeking. Classrooms are randomized to a control group or to receive four weeks of access to the chatbot. Within treated classrooms, students are cross-randomized to alumni endorsements and habit-formation streaks. The plan pre-specifies intent-to-treat estimates of the effects of chatbot access and the additional interventions on adoption and engagement, care-seeking behavior, stigma (both own and perceived), willingness to pay for therapy, and...
Our experiment involves participants designing a product (a web game) with an AI coding agent to sell to other participants.
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...
Despite significant gains in financial access across low- and middle-income countries, financial health and resilience remain critically low among informal sector workers, largely due to exposure to uninsured health shocks. In Nigeria, only about 3% of adults aged 15-49 have any form of health insurance, leaving the majority vulnerable to catastrophic out-of-pocket expenditures that undermine business viability and loan repayment. This study provides causal evidence on the impact of bundling health insurance with microfinance loans on the financial outcomes of micro and small informal business owners in Edo State, Nigeria. In partnership with a microfinance institution and the Edo State Health Insurance Commission, eligible clients are offered a voluntary bundled product combining a mic...
Do decentralized markets efficiently aggregate supply decisions when firms must commit inventory under correlated uncertainty? We study street vendors selling perishable produce in Patna, India, who first commit to inventory at wholesale markets then set retail prices during the trading day. Demand uncertainty is driven by weather and marketplace-day footfall affecting all vendors simultaneously. Waste from spoilage provides a direct measure of costly supply mistakes. We develop a two-stage model identifying three inefficiency channels: business-stealing through prices, availability externalities through stockout spillovers, and coordination failure under correlated shocks. Our empirical strategy combines vendor-level panel data with randomized price experiments. Vendors are notified of...