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股权规模、风险溢价与投资者理性——基于中国股市的经验研究 被引量:6

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摘要 基于从市场模型出发,来研究风险溢价在中国是否存在,分析风险系数β值及规模因素对预测股票收益的作用,以及通过数据分段来分析我国股市处于不同运行周期情况下的投资者行为特征,发现:(1)在较为合理的估算方法下,β值对股票收益的作用得到很大的提升,而这一结论与国内一些学者研究的结论有着明显差异。(2)在两个观测期内都没有捕获到正风险溢价存在的证据,即在第一个观测期内存在弱小盘股效应,在第二个观测期内则发现较明显的大盘股效应和负风险溢价现象。研究结果表明,当股市处于较为正常的运行周期时,投资者呈现出较高的理性特征;而当股市处于长期熊市期间时,我国投资者呈现出明显的非理性特征。
作者 邓可斌 唐珺
出处 《当代财经》 CSSCI 北大核心 2006年第2期32-37,共6页 Contemporary Finance and Economics
基金 博士学位论文的部分研究成果
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参考文献23

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