Final answer:
The country with the highest number of companies with Global Competitive Advantage is the United States.
Step-by-step explanation:
The country with the highest number of companies with Global Competitive Advantage is the United States. The United States has a comparative advantage in designing and marketing products, as well as in sacrificing fewer resources to design high-tech devices. The engineering and design of the iPhone, for example, is done in the United States, while China has a comparative advantage in assembling the phone and Korea has a comparative advantage in producing components.