Korea's Buyer Bonus: Getting to Know You

The OKCashbag rewards program has signed up half of Korea's population and is gathering personal information for marketing. Is China next?

In April, Song Mi Sook bought a book, saw a movie, downloaded a new ringtone for her cell phone, and purchased music for her Internet homepage -- all without having to spend any of her own money. How is that? The 28-year-old Korean civil servant used bonus points, called OKCashbag, that she had accumulated while shopping and dining in the past several months. "I like it not just because I can save money," she says. "It's also a very convenient way to pay when you buy stuff online."

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