“…Because Kim et al (2008) show that the entry of commercial banks into the IPO underwriting market reduces gross spreads, I try to use their control variables in the regression equation for comparison purpose. The control variables include various determinants of gross spreads documented in the IPO literature, for example, underwriter reputation (Carter and Manaster, 1990), VC-backing (Megginson and Weiss, 1991), proceeds (Denis, 1993;Lee et al, 1996;Chen and Ritter, 2000;Altinkilic and Hansen, 2000), firm age (James, 1992), and return volatility (Hansen, 2001). In particular, the commercial bank dummy controls for the direct effect of commercial bank entry into the IPO underwriting market.…”