Fareed Zakaria: What is a G-Zero world, and how did we get here?

Ian Bremmer: The G-Zero is a world without effective, consistent leadership. It’s not the G7 world where Western industrialized powers set the agenda. It’s not a G20 world where developed and developing states find some way to work together on tough transnational problems. It’s a world where no can be counted either to pay the piper or call the tune.