China’s factory output and investment growth probably weakened in December, adding to signs the world’s second-largest economy is losing momentum as analysts forecast 2014 expansion at the lowest in 24 years. Industrial-production gains slowed to a five-month low of 9.8 percent and gross domestic product grew 7.6 percent from a year earlier in the October-December period, based on the median estimates of analysts before data due Jan. 20. Expansion will moderate to 7.4 percent this year as investment slows and overcapacity is squeezed, according to a survey last month. The ruling Communist Party has pledged to seek a ... (full story)