Here we look at some tax concession examples and highlight some recent changes, with a special focus on the tax system overhaul in Belgium from earlier this year.
Having unified its currency rates only last year, Cuba has reintroduced a multiple exchange rate system, greatly devaluing the peso in the process.
Nigeria's new president wastes no time in unifying exchange rates.
'Regionalisation' of the global economy could make cost of living trends more divergent.