With a third of its 47m people using the Internet, South Korea is as wired a country as any, and the stockmarket shows it. Nearly two-thirds of all share transactions by value, and a third by number, are now conducted online—higher proportions than anywhere else in the world. Last year, this helped fuel a share-trading boom in the Kos-daq, the local equivalent of America's technology-heavy Nasdaq market. But the Internet is a mixed blessing; it has opened new vistas for frauds as well as for honest punters. And of the millions of Korean day-traders, some, inevitably, are crooks.
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