中文摘要：

本文以收集的2010年在创业板首发上市的89家公司在IPO前后连续5年的数据为样本,利用修正的Jones模型分析了我国创业板上市公司的IPO盈余管理的情况,强调上市公司IPO时有风险投资背景对盈余管理行为的影响。研究结果表明：我国创业板上市公司在IPO时存在盈余管理行为。风险投资背景对创业板上市公司IPO时的盈余管理行为没有显著的影响。但是,风险投资和行业的交互项对创业板上市公司IPO时的盈余管理行为有显著的影响。

英文摘要：

The sample in this paper is the collected data of the gem IPO in 2010 of the 89 companies in the IPO before and after five consecutive years. This paper uses modified Jones model to analyze the situation of the gem IPO earnings management of listed companies in China. This paper also emphasizes the importance of having a venture investment background to earnings management behavior. The research results that the gem listed companies in our country exist earnings management behavior when they are in IPO. Venture investment background has no significant effect on the gem IPO earnings management behavior of listed companies. However,the interaction term of venture investment and industry has a significant impact on the gem IPO earnings management behavior of listed companies.