This report results from the project ‘Competing Claims on Natural Resources (overkoepelend instrumentarium)’ in the KB programme of 2011. In short the terms of reference of this report are as follows: Give an overview of instruments developed in other KB projects relevant for the analysis of Competing Claims on Natural Resources. Questions include: What are feasible instruments? What are their advantages and disadvantages? What can or should be applied in specific cases? Is there a need to validate instruments and how? Can the instruments help to make trade-offs clearer on a global, national and local level? What are the white areas (not covered)? What should be developed?