Table 6 Depth dummy variable regression results The dependent variables used in the regressions are market depth and cumulative depth, both in HK$1000, over the five best queues on both sides of the order book measured during the 30-minute intraday interval. The dependent variables are log-transformed. All within-group dummy variable coefficients are restricted to total zero in order to avoid linear dependency among the independent variables. The t-statistics are based on the White heteroskedasticity consistent standard errors. Table 6