The paper discusses the main issues related to negative and zero incomes that are relevant for the measurement of poverty. It shows the prevalence of non-positive incomes in high- and middle-income countries, provides an analysis of the sources and structure of these incomes, outlines the...

Evaluation choreography - or who knows what when through the process of impact evaluation - has an important influence on the credibility and usefulness of findings. We explore such choreography from technical, political and ethical perspectives through reflection on a collaborative case study...