In today’s interdependent world, the debate about the role of public policy, the size and functions of government, and the legitimacy of public decision-making should be conducted with the four levels of governance [international, national, regional/provincial, and local] much more clearly in focus. The levels often will overlap (infrastructure and clean energy issues, for example), but democracy could be greatly strengthened if the issues were linked to the levels at which decisions can best be taken. [emphasis added]This is called subsidiarity
Read it at Project Syndicate
What Role for the State?
Kemal Derviş, a former minister of economics in Turkey, administrator of the United Nations Development Program (UNDP), and vice president of the World Bank, is currently Vice President of the Brookings Institution