This evaluation reviews the relevance, efficiency and effectiveness of the IDB's Program with Ecuador for 2007-2011. The period was characterized by an important political and institutional shift in Ecuador, embodied in the new Constitution of September 2008. Working within the framework provided by the Plan Nacional para el Buen Vivir, the IDB program was in alignment with the country's agenda. IDB's efficiency has been mixed. Despite improvements in timeliness and cost, the institutional capacity of agencies responsible for the execution of IDB projects has been varied. Available outcome indicators show progress in Ecuador's development path; however, it is difficult to establish to what extent IDB's interventions contributed to those improvements.