Home prices in China's major cities soared by more than a fifth last year, private research showed yesterday, painting a picture at odds with official data following repeated government efforts to tame the red-hot sector. Prices in Hangzhou rose the most, by 47.1 per cent, followed by 37.9 per cent in Chongqing and 37.1 per cent in Beijing, according to the China Real Estate Index System (CREIS), run by...