China's economy is growing only half as fast as official data shows, or maybe even slower, according to foreign investors and analysts who increasingly challenge how the world's second largest economy can be measured so swiftly and precisely. Beijing's official statisticians reported last month that China's economy grew by a steady 7.0 percent in the first two quarters of the year, spot on its official 2015 target. That statistical stability comes at a time when prices of global commodities, which China still hungers for despite a campaign to rebalance the economy away from investment and manufacturing toward ... (full story)