Chinese stock index circuit breaker to encourage long-term investing
A circuit breaker mechanism is expected to be introduced in China's stock market.
Chinese shares open higher on Tue.
China's stock indices in Shanghai and Shenzhen opened higher on Tuesday.
Hong Kong stocks close 0.75 pct lower
Hong Kong stocks moved down 163. 9 points, or 0.75 percent, on Monday at 21,756.93 points.