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中国股票市场系统性风险的稳定性与预测性问题研究
Authors
欧阳永卫
Publication date
1 January 2000
Publisher
Abstract
虽然罗尔1976对CAPM的检验提出了两点批评但并没有说明该模型在理论 上有什么缺陷它至今仍然是一个被广泛接受并运用的模型是现代资本市场理论的重 要组成部分当然罗尔的批评也并非子虚乌有在实证中常用单一指数模型即市场 模型来代替CAPM在这两个模型中证券的系统性风险可以用系数来衡量它决 定了证券的预期收益率与市场收益率的比例关系运用系数来估计证券的风险和收益 有一个基本前提即未来时间段的系数应该在一定程度上可以预测如果投资者不能 准确预期证券未来的系数那么模型的运用将受到限制正因为如此证券系统性风 险的稳定性和预测性倍受关注许多中外学者都曾做过这方面的实证研究最初大家 简单地把历...学位:管理学硕士院系专业:管理学院企业管理系_工商管理硕士(MBA)学号:19971505
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Last time updated on 16/06/2016