Prime Minister Jacinda Ardern has taken part in a debate about Gross Domestic Product at the World Economic Forum in Davos. She was joined by UAE Minister for Happiness and Wellbeing Ohoud Al Roumi, the OECD secretary general Angel Gurria, economist Mariana Mazzucato and academic Erik Brynjolfsson. Ms Ardern said the GDP measure is not enough on its own, and it doesn't measure the wellbeing of nations.