A global strategy allows for: the leading companies to compete for the biggest share of the world market, but only occasionally compete head to head in different countries. the markets in various countries to be part of the world market and competitive conditions across country markets to be strongly linked. a company's overall market strength to be the sum of its market shares in each country market where it has a presence. the industry leaders to be foreign companies, while domestic companies are relegated to runner-up status. a firm's overall competitive advantage to be determined by the size of the competitive advantage it has in each of its profit sanctuaries.