Although the G20 has stated that the group's "economic weight and broad membership gives it a high degree of legitimacy and influence over the management of the global economy and financial system", its legitimacy has been challenged. A 2011 report for the Danish Institute for International Studies criticised the G20's exclusivity, particularly highlighting its underrepresentation of African countries and its practice of inviting observers from non-member states as a mere "concession at the margins", which does not grant the organisation representational legitimacy.