China on way to overtaking United States as world's largest economy by 2030. Over the next decade, the combined gross domestic product (GDP) of the world's seven largest emerging countries (the “E7”: China, Russia, India, Mexico, Indonesia, Turkey and Brazil) will catch up with and overtake that of the G7 (United States, Japan, Germany, France, United Kingdom, Italy and Canada), to a great extent thanks to China which will overtake the United States to become the world's biggest economy,...