AEA RCT Registry currently lists 11627 studies with locations in 170 countries.
This study investigates the impact of large language model (LLM)-based chatbots on the labor market, focusing on their potential to reduce performance gaps between low- and high-skilled workers. Our experiment recruits participants with diverse skill levels, defined by educational attainment, and evaluates their performance in a task. The treatment group will complete this task with the assistance of an LLM-based chatbot, while the control group will complete it without any assistance. We will examine the differences between high- and low-skilled individuals in terms of how LLM assistance affects performance in the task.
Governments are increasingly complementing traditional audit-based enforcement with consumer-targeted interventions that enlist citizens in monitoring tax compliance. Among these, consumer receipt lotteries—programs that reward shoppers with entry into prize draws for submitting verified sales invoices—aim to strengthen the enforcement chain by encouraging consumers to demand formal receipts. Yet rigorous evidence on their effectiveness and interaction with administrative enforcement remains limited. We conduct the first randomized field experiment of a consumer receipt lottery in the hospitality sector of Khyber Pakhtunkhwa, Pakistan, where business eligibility for the lottery is randomly assigned and cross-randomized with priority-enforcement status within the tax authority. We additi...
Schistosomiasis, the second most socioeconomically-burdensome neglected tropical disease globally, is caused by snail-transmitted flatworms that penetrate human skin. It originates in the aquatic ecology of rural communities, defies control efforts, reinforces poverty, and damages children’s health and education advancement because even when provided drugs to clear the infections, humans quickly get re-infected when they return to snail-infested waterbodies. A newly-identified solution synergistically leverages feedback in socio-environmental systems through targeted aquatic vegetation harvest at community water access points where most infections occur (Rohr et al., Nature, 2023). The next challenge is how to scale and sustain that solution. If successful, the low-cost, information-bas...
We study how pharmacies and clinics in Western Kenya make decisions that are critical to local health outcomes and antimicrobial resistance, such as the appropriateness of provided medications, diagnostic efforts, diagnostic accuracy, and the provision of partial dosages. We send standardized patients in multiple visits to a sample of 200 providers where we randomly vary the standardized patient's reported symptoms, willingness to provide symptoms, drug requests, and expressed price sensitivity. We plan to assess whether the actions a standardized patient takes influences the provider's willingness to ask diagnostic questions, the recommended drug, and the transaction price.
As climate change intensifies, extreme heatwaves are becoming more frequent and severe, disproportionately affecting outdoor gig workers who lack labor protections and are paid based on output. In India’s booming gig economy, delivery workers face prolonged exposure to heat with limited means to adapt. This project will evaluate whether small, timely cash transfers can help these workers cope with extreme heat. During the peak summer months in Delhi and Gurgaon, India, we will randomly assign some workers to receive a cash transfer each time a heatwave is declared. We will track work activity and health symptoms through weekly surveys. The goal is to assess whether this support helps workers maintain productivity and reduce heat-related health issues. The findings will offer actionable...
How well informed are job seekers about the wages and other amenities offered by different jobs? When deciding which jobs to apply for, how do they weigh wages against other characteristics of the applied-for jobs? Does poor information distort job seekers’ search and application behavior? To answer these questions, we conduct a survey with an embedded randomized treatment among recent graduates from education programs in Denmark. We tailor the survey to each education program, so that respondents are asked about three specific types of jobs that are relevant, given their educational background. The first part of the survey elicits beliefs about average i) entry-level wages at the job type level, ii) success rates of applications, iii) wages five years after starting a career in a ...
Project Connect is a comprehensive home visitation intervention that targets child welfare-involved, substance-affected families with children and adolescents ages 0 to 17 through home-based services and treatment. The program addresses the complex needs of families affected by substance use by providing intensive, long-term services aimed at strengthening families, addressing parental substance use, and helping parents recover while keeping children safe. The study used a randomized controlled trial (RCT) to evaluate the causal impact of Project Connect services on families experiencing substance use in the Rhode Island child welfare system and to compare the child welfare service trajectories (e.g., placement and length of time in care) of families affected by substance use who r...
Cooperation among employees is one of the most important pillars for company success. A common practice to foster a cooperative culture among employees is to provide monetary incentives to cooperate. For example, through managers or institutional arrangements that allocate monetary rewards to more cooperative employees. However, economic theory as well as empirical evidence suggest that such incentive choices can induce unintended side effects. In the economic literature on cooperation it has been emphasized that incentive choices can signal bad (or good) news about the prevalence of uncooperative individuals in a population. As a consequence, incentives can have limited or even counterproductive effects on cooperative behavior. Do incentive choices work as information devices in a natu...
Amidst continually increasing evidence in favour of vaccination, hesitancy is sharply divided along political lines. This project will quantitatively assess to what degree vaccine hesitancy can be attributed to (1) a lack of information on COVID-19 and its vaccines, and (2) politically motivated reasoning and exposure to abundant misinformation. Using a large-scale randomized control trial, we will test scalable interventions that provide basic information about vaccines and other interventions designed to combat misinformation and biased reasoning on vaccination. Ultimately, we hope to deliver communication tools that allow healthcare providers to identify which individuals will be receptive to good-faith conversations on the safety and efficacy of COVID-19 vaccination as well as produ...
Despite widespread access to online job postings, large disparities in employment outcomes persist among similarly qualified candidates, suggesting that informational frictions extend beyond vacancy access. This paper argues that process knowledge about how hiring processes operate is a key and understudied source of advantage. Unlike vacancy information, process knowledge is unevenly distributed through social networks and is strategically costly to share in competitive, rank-order selection environments. Using a lab-in-the-field experiment with university students in Pakistan competing for real jobs, the paper causally examines how access to process knowledge affects information-sharing behaviour.