The document discusses how the BRIC economies (Brazil, Russia, India, China) contributed over a third of global GDP growth in the past decade and grew their share of the global economy to almost a quarter. It predicts that in the coming decade, the BRICs will contribute nearly half of global GDP growth and surpass the US and European economies in size. A key trend will be the dramatic expansion of the middle class population in the BRICs, which is expected to grow by hundreds of millions of people and far surpass the middle class size of the G7 nations.