Osvaldo Néstor Feinstein is a development evaluator and economist. He is a professor at the Master in Evaluation at the Madrid Complutense University, a member of the International Evaluation Advisory Panel of UNDP’s Independent Evaluation Office and the editor of the World Bank Series on Evaluation & Development. Osvaldo was a manager and adviser at the World Bank’s Operations Evaluation Department and a senior evaluator at IFAD. He has been a senior evaluation consultant with the IADB, AfDB, WB, Banque de France, IFAD, GEF, ILO, UNESCO, CGIAR and other organizations. Author of several publications on evaluation, development and economics.