This thesis analyses the dialectic process between the institutionalization of the Palestinian Authority (Palestinian self-government) and the implementation of the peace agreements with Israel. It was observed, on one hand, that the structure created for a political solution for the Israeli- Palestinian conflict constrained the institutionalization of the Palestinian self-government which started in 1994. On the other hand, it was verified that the process of formation and consolidation of this institution had impacts on the Palestinian domestic field (internal opposition and governability); and affected its capability for implementing the terms of the agreements, influencing, in turn, the evolution of the peace process between 1994 and 2004. This study aimed to cover breaches in the literature of international conflict resolution on the implementation phase of the agreements and on the degree of institutionalization of an actor involved in a peace process.