Services account for two-thirds of the global economy. In high-income countries, the share hovers around 73 percent, and in low-income countries around 46 percent. Among the BRICs, Brazil's 65 percent and Russia's 57 percent are much higher than the corresponding share for China (40 percent) or India (52 percent). Not surprisingly, only twenty of the BCG's ranking of the 100 most significant emerging-market multinationals are service-sector firms, although their size and international presence is likely to grow very quickly over the next two decades (BCG 2009). For instance, many firms in the field of business services outsourcing start by exporting from a home country with low wages and later establish operations abroad, as the cases of Tata Consultancy Services, Wipro, or Infosys illustrate.