During the course of 200 years, a European ideal concerning equality gradually became a Norwegian export commodity. The fight for equal rights was not necessarily, however, what led Norway to being at the forefront of equality. The liberalisation of the economy was just as important, according to a new book celebrating Norwegian history of equality from 1814-2013.

There is no doubt that boys and girls perform differently at school. But simply looking at gender in order to understand why is not enough.

Why do we make the choices that we do? Are we born this way or have we become this way? Behavioural economists look for answers through economic and math experiments in the laboratory.