“…Mei, Scheinkman, and Xiong (2009) found that trading caused by investors' speculative motives can help explain a significant fraction of the price difference between Chinese dual-class shares, while Chan et al (2007) identified evidence of shifting informational patterns due to regulatory changes in February 2001, however A-shares continued to dominate the price discovery process. Cai, McGuinness, and Zhang (2011) found that weakening informational asymmetries underlie much of the change in the markets' relative pricing, where policy and corporate governance change appears to be the principal force driving the efficiency gains, while Meng, Li, Chan, and Gao (2020) identified, through the use of A-share data, the presence of a negative information effect from short-selling restrictions. Xianghai (1996) identified cross-sectional differences between the prices of both A-and B-shares, with evidence suggesting the presence of a correlation with investors' attitudes towards risk.…”