The concluding chapter summarizes the findings and discusses the shortcomings of current International Law and IR norm theory. It highlights the need for a multi-level perspective for studying norm robustness. Furthermore, it highlights the need to integrate a multi-level, mixed method approach to norms on diversity and inclusion to understand the impact of norms at the various levels of global governance. The final section stresses the importance for more comparative research with other, sometimes overlapping norm clusters (e.g., on gender, racism, LGBTQI+, or older persons) to deepen our insight on norm development and impact, as well as about the interaction of governmental and non-governmental action at various levels.