AEA RCT Registry currently lists 11902 studies with locations in 170 countries.

Most Recently Registered Trials

  • Information, (Perceived) Admission Chances and Preference Reporting under Deferred Acceptance. An Experimental Study
    Last registered on April 09, 2026

    We study how different types of information about relative priority shape preference reporting under the student-proposing Deferred Acceptance (DA) mechanism, focusing on whether information affects participants’ beliefs about their admission chances and, in turn, their reporting behavior. To address this question, we implement a laboratory school choice experiment in which four students compete for four schools, each with a capacity of one seat. Students have strict preferences over schools: they earn 15 EUR for their top choice, 11 EUR for their second choice, 8 EUR for their third choice, and 4 EUR for their least preferred choice. Schools rank students based on randomly assigned admission scores that determine priority. In each round, participants first submit an initial rank-order...

  • Quality premium transmission and quality upgrading – evidence from Ugandan dairy value chains
    Last registered on April 09, 2026

    Abstract We study whether quality premiums at milk collection centers can transmit incentives upstream and upgrade compositional milk quality in Ugandan dairy value chains. Building on prior work that installed approximately 150 milk analyzers and raised testing without consistent quality-based price differentiation, we partner with MCCs and small processors to randomize trader eligibility for a per-liter quality premium tied to butterfat and solids-non-fat. Randomization occurs at the trader level with blocking by MCC or processor. The primary trader outcome is an Anderson index of compositional quality measured by analyzers during deliveries in the final study week. The primary farmer outcome is the volume-weighted farmgate price from the last three sales, used to assess pass-through....

  • Incentivizing quality in dairy value chains - experimental evidence from Uganda
    Last registered on April 09, 2026

    Quality of products transacted within value chains, and the preservation of quality throughout the chain, is central to value chain development. In Uganda, we find that there is a clear demand from dairy processors for better quality raw milk and substantial scope for quality improvement at the dairy farmer level, yet a market for quality does not develop, holding back further value chain transformation. In this study, we test two potential reasons why a market for quality does not develop through a field experiment with randomized interventions at different levels of the value chain. At the dairy farmer level, we conjecture that farmers are paying attention to the wrong quality attributes and design a video-based information campaign to point out what the quality parameters are that ma...

  • Beliefs About Income Inequality and Policy
    Last registered on April 09, 2026

    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.

  • Delegation, Monitoring, and Supplier Engagement: A Field Experiment in Supply Chain Governance
    Last registered on April 09, 2026

    We conduct a 2x2 factorial field experiment with a leading Chinese apparel brand and 155 of its suppliers to study how governance structure shapes supplier compliance with multi-dimensional reporting mandates. We independently vary decision authority (mandate versus delegation of KPI selection) and monitoring scope (comprehensive versus targeted carbon audit). Contrary to classical organizational theory, simpler governance structures generate substantially higher engagement among capacity-constrained small and medium-sized enterprises. Mandating a fixed KPI set reduces the missing-data rate by 10.4 percentage points relative to the control mean, while delegating KPI choice yields a negligible effect. Targeted carbon audits raise documentation coverage by 0.857 additional categories, rou...

  • Information Frictions, Algorithmic Matching, and Worker Preference: A Two-Stage Randomized Control Trial on Turnover and Productivity in Manufacturing
    Last registered on April 09, 2026

    High employee turnover remains a persistent barrier to productivity in manufacturing firms. This study investigates the roles of pre-employment information, financial growth incentives, and job assignment mechanisms in mitigating turnover and improving worker-job matches. We conducted a large-scale field experiment with approximately 2,000 newly hired workers in a Chinese electronics factory using a 3 × 3 cross-randomized design. In the hiring stage, we test the effects of information frictions and perceived career growth on selection. Applicants are randomized into: (1) a pure control group; (2) an information treatment viewing a video on factory life and strict workplace regulations; or (3) a "growth path" treatment combining the video with information on on factory life, position-spe...

  • Activist homophily, activist signaling, and the acquisition of social capital by Black entrepreneurs: a field experiment
    Last registered on April 08, 2026

    Black entrepreneurs in the United States are notably disadvantaged relative to their White counterparts. This disadvantage primarily stems from differential access to resources (Bates, Bradford, & Seamans, 2018). Although scholars have closely attended to differentials in the acquisition of financial capital by Black entrepreneurs (e.g., Fairlie, Robb, & Robinson, 2022; Younkin & Kuppuswamy, 2018), less attention has been given to differentials in the acquisition of social capital, or durable networks of social relationships granting access to actual and potential resources (Bourdieu, 1986). However, social capital is an important resource for entrepreneurs (Gedajlovic et al., 2013), and it is a form of capital particularly sensitive to racial dynamics (Putnam, 2007). To explore the...

  • Understanding Overconfidence
    Last registered on April 08, 2026

    We aim to understand what drives individual overplacement when participants are asked questions about their ability or intelligence. Our main hypothesis is that overplacement is driven by a desire to not perceive oneself in the very bottom of the distribution (lowest quartile), rather than a desire to place oneself at the very top of the distribution (highest quartile). To test this hypothesis we will compare participants’ beliefs when asked to place themselves in two cases: below or above median (Median condition), and in one of four quartiles of the distribution (Q1-Q4, Quartiles condition). We also hypothesize that there will be a difference by gender, according to which men will display a stronger desire to avoid the bottom quartile than women. The study will consider two domains, a...

  • Enhancing the Integration of Vulnerable Refugees in Luxembourg: Findings from a Randomized Controlled Trial (IDEALUX)
    Last registered on April 08, 2026

    Large employment and unemployment gaps persist between refugees and other migrants across Europe; refugees are 11.6 percentage points less likely to be employed and 22 points more likely to be unemployed than otherwise similar migrants (Fasani et al., 2022). Linguistic barriers are repeatedly identified as the key obstacle for economic and social integration (Lochmann et al., 2018). A growing experimental literature demonstrates that combining language training with job-search or work-practice components can generate large gains in refugee employment. Randomised controlled trials of refugee integration in Europe have examined a variety of interventions, such as occupation‑specific job‑search intermediation in Germany (Battisti et al., 2019), intensive counselling in Sweden (Andersson Jo...

  • Valuing Early Career Opportunities
    Last registered on April 07, 2026

    How do early career workers make choices about jobs? We run a Prolific survey and partner with the UMass Boston Career Center to conduct a study on early-career job choice. Using hypothetical firm-choice experiments, we examine how workers trade off first-job salaries with other human capital investments.