Cover StoryAs China prepares to usher in the Year of the Golden Pig, associated with prosperity in Chinese folklore, stock market investors also are hoping this is the Year of the Bull. Last year was a banner year for the market, with the Shanghai Composite Index hitting record highs as investors raced to put their money to work. But will the good times continue in 2007? Many experts see further gains, citing a favorable economic outlook, the maturing of the market, strong capital inflows and the increasing number of blue chips listed on the market. But others urge caution,saying it is unclear whether the market really has entered a period of healthy development and whether it can withstand any major shocks.