Comment on: Abou-Ali, H., El-Azony, H., El-Laithy, H., Haughton, J. and Khandker, S., 2010. Evaluating the impact of Egyptian Social Fund for Development programmes. Journal of Development Effectiveness, 2 (4), 521-555 - Duvendack, Maren; Palmer-Jones, Richard (Informa UK Limited, 2011)