Vietnam began to liberalize its economy in the 1980s, when the country’s leaders launched doi moi (or “renovation”). It was only after President Clinton lifted the US trade embargo in 1994, though, that multinationals began to pile in. Since then, Vietnam has taken off. In 2007, it joined the World Trade Organization (WTO)—just in time for the global financial crisis. The country weathered the storm well, posting 5 percent growth in 2009. This year should be even better.

For retailers and consumer goods companies, Vietnam is an attractive market: the economy is growing briskly and sustainably, and the population is adding a million people a year. Even more important, the county’s middle class, now 7 million households, is growing fast. Vietnam’s literacy rate is 92.5 percent, and from 2003 to 2008 the number of college and university students nearly doubled. The cities, though mostly small, are expanding rapidly. Six of them—Can Tho, Da Nang, Haiphong, Hanoi, Ho Chi Minh City, and Nha Trang—account for 40 percent of the country’s sales, according to AC Nielsen estimates from 2007...