The E7 is a group of seven countries with emerging economies. The E7 are predicted to have larger economies than the G7 countries by 2020. The term was coined by the PricewaterhouseCoopers in the Stern Review report, which was published on 30 October 2006. The E7 represents the seven major emerging economies.
Below are the E7 countries and their predicted economies in 2050  as predicted by Goldman Sachs:
The "Emerging 7" according to Peter Marber (author of Seeing the Elephant (2009)) states the 7 countries as follows: China, Russia, India, Indonesia, Mexico, Brazil and South Korea—as opposed to Turkey. The back-study to this is South Korea's rapid economic growth in 3 decades paired with enrollment rates (between 1966 to 1995); compared to the growth of the UK (150 years) and the US (100 years).