Disciplinary research at Institut Polytechnique de Paris is based on the expertise of its founding schools. Economics is one of the 10 disciplinary fields of research involving high-level researchers and doctoral students in state-of-the-art laboratories and infrastructure. The economy is an essential lever of today's society and understanding the phenomena that govern it at different levels is crucial for describing and analyzing the production, exchange and consumption of goods and services. Research in economics and quantitative sociology at the Institut Polytechnique de Paris is characterized by a strong attachment to quantitative methods, data culture, mathematical modeling, and the constant back-and-forth between models and empirical facts to analyze concrete economic and social issues.