Abstract :
On 21 February 2011 at 22:58 pm, a blogger screen-named “Blue Whale Financial Reporters League” posted a shocking message to Sina Weibo, a Chinese Twitter-like microblog: “[News Leak] The largest U.S. electronics retailer Best Buy is to withdraw from China. Layoff s to be announced 8:30 am tomorrow.” Within an hour, at 23:26 pm, another post from the same source: “[Confirmed] The largest U.S. electronics retailer Best Buy is to withdraw from China. Managers meeting at Best Buy Xujiahui Store at 6 a.m tomorrow and all-hands meeting at 9 a.m. All Chinese employees to be let go.”