Problem:
Suppose China suddenly decided to give into the US demands and, overnight, revalued upwards the Yuan by 20%.
Consider the impact of this increase in value of the Yuan on two large US companies: (1) Yum!Brands whose 2007 second quarter profits were $214 million roughly half of which resulted from sales made by KFC and Pizza Hut within China; and (2) Wal-Mart where the great majority of the products sold in its US stores are made in China.