本文对农业企业IPO绩效进行实证研究,检验我国农业上市公司在上市以后企业绩效是否下降,即是否存在“IPO效应”。本文采用威尔柯克森符号秩检验法来检验农业企业绩效的均值变化,发现我国农业上市公司存在“IPO效应”。 This paper conducts an empirical research on the IPO performance of agricultural enterprises to test whether the performance of Chinese agricultural listed companies after the listing goes down, that is, whether there is an “IPO effect”. In this paper, Wilcoxon signed rank test is used to test the average change of agricultural enterprises’ performance. It is found that there exists “IPO effect ” in China’s agricultural listed companies.