询价对象范围、配售比、锁定期与IPO抑价  

Range of Inquiry Recipients,Proportion of Offline Rationing,Lock-up Period and IPO Underpricing

作　　者：彭志胜[1,2] 宋福铁[1] 

机构地区：[1]华东理工大学商学院,上海200237 [2]安徽建筑大学管理学院,安徽合肥230601

出　　处：《系统工程》2015年第3期1-11,共11页Systems Engineering

基　　金：国家自然科学基金资助项目(71371073);上海市浦江人才计划项目(13PJC025);上海市教委科研创新项目(12ZS048)

摘　　要：构建需求理论模型分析我国特殊询价机制下询价对象范围、网下配售比例及锁定期变化对IPO抑价的影响,并采用国际IPO数据针对理论结果进行实证检验。理论分析表明,随询价对象范围增加并超出某一门槛值后,抑价率呈现先下降后上升趋势,而之前并无影响;随网下配售比例增加,抑价率呈现先下降后上升趋势,超过某一门槛值后影响消失;参与询价乐观者网下申购数量超过网下配售数量时,减少锁定期不影响抑价率,但低于该数量时,减少锁定期会导致抑价率下降;参与询价乐观者比例与网下配售比例一致时,抑价率最低。随后的实证分析结果与理论分析一致。最后提出取消网下配售比例等建议,以推进IPO定价制度市场化改革。The paper establishes theoretical model to explore the impact of the range of inquiry recipients,the proportion of offline rationing and lock-up period on IPO underpricing,and tests empirically the theoretical results by the international IPO data.Theoretical results show as follows.Firstly,underpricing decreases first and increases later with the range of inquiry recipients widening after a certain threshold.Secondly,underpricing decreases first and increases later with increasing of the proportion of offline rationing,and then the impact disappears after the proportion of offline rationing reaching a certain threshold.Thirdly,reducing lock-up period does not affect underpricing when optimists' net purchase exceeds quantities of offline rationing.But if less than them,reducing lock-up period would decrease underpricing.Fourthly,underpricing achieves the lowest when the proportion of optimists in the inquiry is close to the proportion of offline rationing.Subsequently,the empirical results are consistent with the theoretical results.Finally we propose to abolish the requirement of the proportion of offline rationing in order to promote market-oriented reforms of IPO pricing mechanism.

关 键 词：IPO抑价率 询价对象范围 网下配售比例 锁定期 

分 类 号：F832.51[经济管理—金融学]