Bo Rothstein: how refugees are helping Sweden's economy

Swedish political scientist Professor Bo Rothstein says Sweden's economy is booming and it could be because of the number of refugees the country takes, more than any other per capita. This is despite the fact that many are out of work - Rothstein explains why that is. He also talks about the controversy surrounding his recent resignation as the Blavatnik chair of government and public policy at Oxford University. He quit his post on principle after discovering that Ukrainian-born billionaire Leonard Blavatnik, who had given £75 million to Oxford, also donated $1m to Donald Trump's inauguration committee.