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Insider Trading in China Thrives With Selective Data Disclosure

Every month, traders, investors and money managers like Shi Yu cull rumors about China’s soon-to-be-released economic statistics for what might be the official numbers to try and get an edge in the market.

On Saturday, Feb. 12, Shi read on an Internet chat forum that January inflation would be a lower-than-forecast 4.9 percent. Two friends had heard the same, says Shi, who set a strategy to sell shares into a rally he anticipated as the figure spread.