中文摘要：

本文基于对IPO网下配售特征的分析,检验了参与新股询价过程的询价对象之间的互动关系,并进一步考察了可能影响这一互动关系的因素。研究发现：询价对象在询价过程中没有为了获得更多网下发行的新股而相互竞价,相反它们选择相互合谋共同压低报价;询价对象家数对合谋程度具有显著影响,家数越多,合谋程度越低;询价对象的异质性对合谋程度具有显著影响,异质性越高,合谋程度越低。

英文摘要：

Based on analysis of the offline allocation characteristics of IPO,this paper examines the interactive relations among inquired objects,and further investigates the potentially influential factors.We find that the inquired objects don＇t compete for obtaining more new shares issued through offline allocation in the process of inquiry;instead,they push the quoted price down jointly by tacit collusion.This study also reveals the significant effect of the number and heterogeneity of inquired objects on the degree of tacit collusion,the more inquired objects,the lower degree of tacit collusion,and the higher level of heterogeneity,the lower degree of tacit collusion.