Pedestrians walk past high rise buildings in Shanghai on January 11, 2010. China ordered vigilance against foreign "hot money" flows and speculative real estate investment as concerns have risen in recent months that a property bubble was building due to speculative investment amid rumours that a large portion of China's government's 586-billion-dollar stimulus package had been channelled into asset markets. AFP PHOTO / Philippe LOPEZ (Photo credit should read PHILIPPE LOPEZ/AFP/Getty Images)
