Measuring and monitoring as well as communicating on progress in the context of European and national resource policy (in particular ProgRess) requires comprehensive and robust material input and consumption indicators. Several different methods have already been developed that quantify direct and indirect (material extractions in export countries needed to produce imported goods) material flows. However, the different methods used for and the data basis underlying the indicator calculations lack harmonization, which renders the calculation results less comparable and less robust. The report is available for download.