Our research shows that the emerging economies’ share of Fortune Global 500 companies will probably jump to more than 45 percent by 2025, up from just 5 percent in 2000. That’s because while three-quarters of the world’s 8,000 companies with annual revenue of $1 billion or more are today based in developed economies, we forecast that an additional 7,000 could reach that size in little more than a decade—and 70 percent of them will most likely come from emerging markets. To put this dramatic shift in the balance of global corporate power in perspective, remember that many of the world’s largest companies have maintained their current status for generations: more than 40 percent of the 150 Western European companies in last year’s Fortune Global 500 had been founded before 1900. … The rebalancing of the global business landscape will probably be even faster and more dramatic than the shift of economic growth to emerging regions. Large companies matter, and not just for their ability to create jobs and generate higher incomes; they are also forces for increased productivity, innovation, standard setting, and the dissemination of skills and technology. Their geographic shift will have profound implications for the nature of competition, including not only the race for resources and talent but also, more broadly, the emerging markets’ efforts to reach the next level of economic development and prosperity.