These maps show how tricky it is to measure inequality in local areas across England

As heads of state, billionaires and other influencers pondered the issue of inequality at the World Economic Forum in Davos, an unlikely hero emerged in the form of Dutch historian Rutger Bregman. His memorable take down of the super wealthy on tax avoidance clearly resonated, at a time when the deep social divisions associated with inequality are manifesting themselves forcefully across the world: from the gilet jaunes protests in France, to the ongoing fallout from Brexit.

In the UK...