The World Development Report (WDR) process set new standards for openness and consultation. Its concepts and content are a major advance on its 1990 predecessor. The intention that its concepts and content should be influenced by voices of the poor was partly fulfilled. Conceptually, the VOP...

We develop a biologically correct cost system for production systems facing invasive pests that allows the estimation of population dynamics without a priori knowledge of their true values. We apply that model to a data set for olive producers in Crete and derive from it predictions about the...

The starting point for an evaluation is to ask why it is being conducted, who will benefit, and what impact the evaluation itself will have and how. Participatory approaches and methods fit in a paradigm that is pluralist, evolutionary, and iterative. They include stakeholder analysis,...