Forbes, May, 2016. https://www.forbes.com/companies/general-motors/
Facebook, Inc. https://newsroom.fb.com/company-info/
Yahoo! Finance. https://finance.yahoo.com/
The economic value accretion seems to be defying the law of big
numbers and accelerating. In the last four years, April 1, 2013–April 1,
2017, the Four increased in value by approximately $1.3 trillion (GDP
of Russia).^23 ,^24