Popular support for Chancellor Angela Merkel has plunged according to a poll conducted after attacks in Germany, with almost two-thirds of Germans unhappy with her refugee policy.

Donald Trump is extremely unpopular among young adults, in particular young people of colour, and nearly two-thirds of Americans between the ages of 18 and 30 believe the presumptive Republican nominee is racist, according to a survey.

Economics can be useful. By this I don’t mean the quasi-mathematical faffing about that some, including practitioners, think of as economics.