Looking back 70 years, the broad trend is for borders to appear rather than disappear. There were 76 independent countries in the world in 1946; today the US recognises 195 (…)
The curious thing about nation states is that they aren’t economic units at all but political ones. (…)
The economic dividing line in the UK does not run along the Scottish border between Berwick and Gretna – it circles London, taking in Oxford, Cambridge and Brighton. London is the true economic outlier in the UK.
The whole story here.