Billed as "the go-to measure for the comparative economic success of different countries", the latest World Economic League Table (WELT) predicts a major change in the world's most economically powerful countries by 2037. 

The annual report is compiled by the UK's Centre for Economics and Business Research (Cebr) and the changes it forecasts in the updated table are eye-opening.

Emerging economies will rise through the ranks and traditionally high-income nations will slip down the league table, while the current number one nation will lose its top spot, albeit years later than previously forecast. 

Read on to find out which nations are tipped to rule the world in 14 years' time. All dollar amounts in US dollars.