The stalking-horse for international capitalism. A focus for all the worries about environmental damage, human-rights abuses and sweated labor that opponents of globalization like to put on their placards. A symbol of America's corporate power, since most of the world's best-known brands, from Coca Cola to Nike, are American. That is the case against. Many economists regard brands as a good thing, however. A brand provides a guarantee of reliability and quality. Consumer trust is the basis of all brand values. So companies that own the brands have an immense incentive to work to retain that trust. Brands have value only where consumers have choice. The arrival of foreign brands, and the emergence of domestic brands, in former communist and other poorer countries points to an increase in competition from which consumers gain. Because a strong brand often requires expensive advertising and good marketing, it can raise both price and barriers to entry. But not to insuperable levels: brands fade as tastes change; if quality is not maintained, neither is the brand.