and the United Kingdom; the operation of joint ventures in China; and the operations of majority-owned subsidiaries in Central America, Japan, and Mexico."39 In 2006, Wal—Mart divested its operations in Germany and Korea.40 Mike Duke, vice chairperson of Wal-Mart Stores and head of the International Division, commented that it had “’become increasingly clear that in Germany’s [and South Korea’s] business environment it would be difficult to obtain the scale and results we desire.’ Wal-Mart seeks markets where it feels that there is potential for it to become a top three retailer, an opportunity that did not exist for it in Germany [or South Korea)."41 Wal-Mart International's U.K.-based Asda subsidiary brings in the largest share of the company’s international revenue, at 37.4 percent. 42 Wal-Mart de Mexico provides the next largest share, at 23.6 percent of Wal-Mart International sales43 (see Exhibit 5). One of the challenges for each of Wal—Mart's segments is determining the appropriate product offerings for each location.