Mattia Fracchia is an applied microeconomist. Mattia’s research explores strategies to enhance public service delivery in Low- and Middle-Income Countries (LMICs). He tested innovative, scalable interventions through two large-scale field experiments on the public service supply side in Guinea-Bissau and a survey experiment on the demand side in Mozambique. In his job market paper, “Does Performance Evidence Motivate? A Field Experiment in Guinea-Bissau’s Health Sector” he designed and implemented an intervention enhancing worker effort by harnessing evidence of organizational performance. The paper won the Weiss Family Distinguished Paper Award at NEUDC 2023 at Harvard University. His job market paper builds on my experience leading the implementation of the large-scale field experiment “Motivating Volunteer Health Workers in an African Capital City”, published in the Journal of Development Economics. This study shows that elevating health workers’ social status leads to improved performance and better health outcomes. Turning to the demand side of public services, the paper “Let’s Call! Using the Phone to Increase Vaccine Acceptance”, published in Health Economics, leverages a combination of positive messaging, social memory stimulation, and critical thinking activation to boost vaccine acceptance and trust in institutions in Mozambique. While working on this project, he contributed to the multi-country study “COVID-19 Vaccine Acceptance and Hesitancy in Low and Middle Income Countries, and Implications for Messaging”, published in Nature Medicine. Currently, he is engaged in two large-scale field experiments in public health and rural value chains. He will continue working on these ongoing projects and his job market paper to prepare them for publication. Moreover, he is interested in exploring innovative and cost-effective interventions to explore the untapped potential of evidence to foster economic development. While conducting these research projects, Mattia has gained considerable experience designing and implementing field experiments and large-scale surveys in LMICs, such as Guinea-Bissau and Mozambique. Additionally, he worked closely with officials from different levels of government, non-governmental organizations, and funding institutions. In this sense, he contributed to the foundation of NOVAFRICA Guinea-Bissau, of which he is now vice president, investing in building a local team and hosting international research assistants, mastering my mentoring and team management skills. Finally, in Guinea-Bissau, Mattia worked as a consultant with the World Bank.