When it comes to future growth opportunities, investors need to look beyond the "BRICs" - Brazil, Russia, India, and China - and look to other developing economies such as Vietnam, according to a study by PricewaterhouseCoopers. "Our latest projection suggest that China could overtake the U.S. in around 2025 to become the world's largest economy, and will continue to grow to around 130 percent of the size of the U.S. by 2050," says John Hawksworth, PricewaterhouseCoopers' head of macroeconomics. The study projects that India will reach approximately 90 percent of the United States' economy by 2050 to reach third place worldwide, with Brazil, Japan, Russia, Mexico, and Indonesia having the potential to top Germany and the United Kingdom by mid-century. Additional forecasts suggest that the Vietnamese economy could reach approximately 70 percent of the United Kingdom's by 2050 and that the Philippines, Egypt, and Bangladesh also have high growth potential.