Carefully designed and implemented evaluations can improve people's welfare and enhance development effectiveness. This paper investigates institutions in Mexico, Chile, and Colombia, and shows that for the successful inception of an institutionalised system for evaluation, three common factors...

The International Initiative for Impact Evaluation (3ie) is a new organisation devoted to enhancing development effectiveness through supporting the production and use of evidence from rigorous impact studies. This paper outlines the theory of change that underlies 3ie's mission and the...