With the objective of sharing the results of the Study on resource use efficiency, economic perspectives (REEO), MercoNet and the UNEP held a workshop on December 10th and 11th in Buenos Aires, Argentina. The purpose of the workshop was to carry out a peer review of the work carried out and consult the actors involved with the objective of validating the report. Additionally, the workshop provided the opportunity to decide on activities and responsibilities associated with the publication of the final report sometime in March and April 2010.