This report assesses the complementarities between these two indices and discusses their main similarities and differences. It also presents the results from the global applications of both indices, including a detailed discussion of the results for two country case studies in Mexico and China, as well as the results for a common application of both methodologies for a selected number of common indicators and key parameters. This report is organized as follows: section 2 briefly introduces the analytical approach for the comparative assessment; section 3 focuses on the descriptive assessment and discusses the main similarities and differences between the GG and GEP concept and methods; section 4 focuses on empirical assessment and presents the results from the global applications of both indices as well as a detailed discussion of the results for two country case studies, Mexico and China, and the results for a common application of both methodologies for a selected number of common indicators and key parameters; and section 5 concludes the report.