On the one hand, the fragmentation of powers and responsibilities and the `not-in-my-term-of-office' approach form a barrier to the institutionalization of sustainable urban management and more efficient collaboration.4/ On the other, the fragmentation of urban governance has resulted in a myriad of ad hoc partnerships promoting economic growth or social inclusion and justice (UNECE 2002b).
D'autre part, le morcellement de l'administration urbaine a entraîné la création d'une multitude de partenariats ad hoc œuvrant en faveur de la croissance économique ou de l'ouverture et de la justice sociales (UNECE 2002b).