Since its creation, the role and mission of the World Bank have gradually expanded, allowing it to acquire its present leadership role in development policy. Faced with the crisis of legitimacy of the 1990s, this institution implemented profound, continuous changes. The promotion of new poverty reduction strategies that insist on the principle of policy appropriation by national actors and, more generally, take political economy and institutions into account constitutes a major turning point. There are nevertheless real limits to the application of these strategic changes. Indeed, the difficulty had by the World Bank in carrying out genuine reform is the result of structural constraints : the institution’s dominance by the United States and...