One worried company is Lotte, which is based on the giant Wilton complex in Teesside.

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Lotte last month launched Xylitol Helco gum in South Korea to fight the bacteria causing stomach ulcers.

ECONOMIST: Medical confectionery

He secured British citizenship, but then decamped with his second wife, Lotte Altmann, to New York, and, later, to Brazil.

NEWYORKER: The Escape Artist

In Seoul, the Big Mac has to compete with Burger King's Whopper, Lotte Burger (a local rival) and South Korean alternatives.

ECONOMIST: Deflating

Many of them are put off by the way the academic promotion system works, explains Lotte Bailyn, a professor at MIT Sloan School of Management.

ECONOMIST: A world of bluestockings

Directly across the street is the new Yanji International Trade Center, a massive emporium where the shelves are stacked with South Korean brand names like Lotte.

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Now that "Lean In" is out, said MIT business professor Lotte Bailyn, Sandberg should use her bully pulpit to push workplace changes -- not just for women, but men as well.

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The following year Korean department stores Lotte and Galleria came to the pair asking them to open what is called a "shop-n-shop"--the designer pays the department stores rent and manages the inventory and display (versus the U.S., where department stores buy stock of the brands they carry).

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