Catherine BRÉVILLE BILLARD is a Lecturer in Economics at the UVSQ (since 2007) and responsible for the department for « Management of Business Administration (GEA)» of the IUT de Mantes-en-Yvelines (since 2009). Her work, including her thesis (co-directed by Paris 1 and ESSEC), concerns the impact of public expenditure on the choice of local capitalisation in a context of fiscal competition. The focus was on considering the fiscal competitiveness from the viewpoint of a geographic economy and studying original forces at work on the attractiveness of these territories. These research axes bring further interest for her in the phenomena of spatial concentration and metropolitanism. Elsewhere she is interested in industrial ecology and environmental impacts of the production of cement.