Published by the ILO, this report developed by Marie J. Bouchard, Madeg Le Guernic and Damien Rousselière presents a general overview of how cooperatives and key concepts are measured for statistical purposes. It is based on extant work and literature. The first part of the report reviews the most important statistical studies on cooperatives. Conceptual and methodological issues are identified concerning the identification and classification of cooperatives, including a discussion about core components and boundary areas. The report then proposes a conceptual framework for defining and classifying cooperatives for measurement purposes.