Central banks have held the financial world in their grip for much of the twentieth century, but is their reign coming to an end? In this episode of Worldview, Adam Boulton is joined by the former governor of the Bank of England, Mervyn King, along with journalist and author Merryn Somerset Webb, Iain Martin, Editor-in-Chief of Engelsberg Ideas, and economic historian, Samuel Gregg. Image: Currencies from around the world. Credit: Jochen Tak / Alamy Stock Photo