Guillaume Chapelle is a Phd Student in Economics at LIEPP and Sciences Po. He graduated with a master degree in Economics and Public Policy from Sciences Po Paris. His main field of research is the housing market and the impact of housing policies. He has a particular interest for the relationships between social housing and the real estate market. He also worked on the rental housing market as a Research Assistant for Professors Trannoy and Wasmer at the French Council of Economic Analysis.