分析师评级修订对股票收益的过度反应:一种“合谋”
    点此下载全文
引用本文:李颖.分析师评级修订对股票收益的过度反应:一种“合谋”[J].财经理论与实践,2017,(3):52-57
摘要点击次数: 929
全文下载次数: 0
作者单位
李颖 (山西财经大学 会计学院山西 太原030006) 
中文摘要:采用2003—2014年的数据,考察分析师评级修订时是否会对股票收益过度反应,哪些因素有可能加剧或者抑制过度反应的程度。研究发现:仅明星分析师评级修订时会对无形股票收益反应过度;当机构投资者重仓持股或上市公司高管计划减持股票时,明星分析师评级修订对无形股票收益的过度反应程度会加剧;当法律环境变得更加严格或明星分析师所任职券商的规模加大时,其评级修订对无形股票收益的过度反应程度将会降低。这一研究结论与本文提出的“合谋假说”更加一致,但与以往文献中基于行为金融学视角所提出的“过度自信假说”以及基于利益冲突视角所提出的“迎合假说”并不一致。
中文关键词:分析师  评级修订  过度反应  合谋假说
 
The Overreaction of Analysts Recommendation to Stock Returns: A “Conspiracy”
Abstract:Based on the data of 2003—2014,the paper first examines whether the analysts recommendation will overreact to stock returns,and then examines which factors may exacerbate or inhibit the degree of overreaction.The study found: firstly,in the analyst group,star analysts recommendation will overreact to stock return;secondly,when institutional investors shareholding heavily or listed companys executives plan to sell stocks,the degree of the overreaction will increase;thirdly,when the legal environment has become more strict or the size of the broker which hire the star analysts becomes bigger,the degree of the overreaction will reduce.The conclusion of the study is more consistent with “conspiracy hypothesis”,but inconsistent with “overconfidence hypothesis” or “cater hypothesis”.
keywords:Analyst  Recommendation  Overreaction  Conspiracy hypothesis
查看全文   查看/发表评论   下载pdf阅读器