EN
Taxation on businesses, which makes up two thirds of local authorities' revenues, urges them to widen the range of their economic interventions. The communauté d'agglomération Plaine Commune is one of the most dynamic in the Parisian metropolis and has had considerable expertise at their disposal for 10 years. In order to ensure their economic influence, they now endeavour to stimulate and even structure some economic industries. Unfortunately, a local tax reform in progress may well jeopardise the pattern of development which is presented in this article.