The International Initiative for Impact Evaluation (3ie): an introduction

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 activities designed to address it.theory of change, Evaluation Gap Working Group, policy-relevant evidence, rigorous impact evaluation, development effectiveness, International Initiative for Impact Evaluation,