SHANGHAI -- The value of China's top companies has plunged by more than 50% in two years on the back of weak markets and a crackdown on the tech and property sectors, according to a new global ranking.
The report by the Shanghai-based Hurun Research Institute also found that the value of 500 companies on its global list tumbled 19% to $47 trillion in the same period, with some 340 groups declining or staying flat.
