'Brexit Is a Mistake But It Is Not a Catastrophe' - Nobel Prize-winning Economist Paul Krugman

Paul Krugman is a Nobel prize-winning liberal economist, author and New York Times columnist.

Ahead of the 2020 Presidential debate, his new book 'Arguing with Zombies' tackles common misunderstandings in the world of economics.

Krugman talks to Krishnan about what are these Zombie ideas, comparing American and British politics and why Brexit isn't a catastrophe.