“…In particular, stock price volatility in China in recent years has been high, which increases earnings surprises. As a result, the demand for management forecasts increases, and managers have the motivation to issue more forecasts to reduce information asymmetry Hirst et al, 2008). For example, Coller and Yohn (1997) find that the bid-ask spread of firms making performance forecasts is significantly higher than that of firms that do not make forecasts, but after the forecasts have been made, there are no significant differences between the bid-ask spreads of the two groups of firms.…”