“…While the role and efficacy of regulation in capital markets are still in dispute both in academia and practice, we test the effect of a market shut down on the IPO underpricing in China, as well as the effect of micro-factors, such as firm size and volume of the IPO issuance at the firm level, and macro-factors, such as the overall IPO market returns before the IPO of a firm. Chen et al (2015) recently reported that the lead-lag relationship between the initial returns and the volume of IPOs is not statistically significant due to institutional differences in the Chinese IPO markets, even though the IPO volume is sensitive to changes in market conditions (Pastor and Veronesi, 2005;Benninga et al, 2005;Yung et al, 2008), and investor sentiment (Ljungqvist et al, 2006;Bustamante, 2012), theoretically. They claim, in China, that the CSRC substantially controls IPO timing, the IPO volume does not respond to changes in market conditions or sentiment as in market-driven economies, and there is no statistically significant relationship between the IPO volume and past market returns, volatility, and valuations in China.…”