This research project studies the local economic effects of transitional investments, a public policy funding method implemented by local authorities to support the socio-ecological transition. The goal is to quantify the ability of these investments to stimulate local economic activity while addressing transition and recovery challenges. Using microeconometric techniques, the project analyzes the impact of public grants (DSIL/DETR) available at the local level, taking into account territorial specificities and interactions. This approach aims to deepen the understanding of the links between public policies and local economic dynamics. Led by a multidisciplinary team of legal and economic researchers and funded by the Normandy region, this project seeks to provide tools and data to guide public decision-making.