统计研究 ›› 2012, Vol. 29 ›› Issue (2): 94-99.

• 论文 • 上一篇    下一篇

对Black-Litterman模型加入主观收益方法的改进

孟勇   

  • 出版日期:2012-02-15 发布日期:2012-02-10

The Improvement of Black-Litterman Model Containing Subjective Returns Method

Meng Yong   

  • Online:2012-02-15 Published:2012-02-10

摘要: Black-Litterman模型是高盛公司提出的确定加入主观观念的资产组合模型,其显著特点是模型加入了投资者的主观观念。目前文献研究显示,模型加入投资人主观收益的方法依然是武断确定。这样加剧了主观投资组合模型使用的随意性,也必将影响其使用效果,会给投资造成巨大损失。由此本文提出使用BMA(贝叶斯移动平均法)模型预测投资者主观收益,文中利用中国上海A股市场数据,编写Matlab程序对主观资产组合模型进行了实证,实证表明预测效果得到了明显改善。该模型不但对Blackliterman模型有重要作用,而且对金融统计模型预测效果的提高也有很大启发。

关键词: Black-Litterman模型, 主观收益;BMA(贝叶斯移动平均法)模型

Abstract: Black-Litterman Model is a portfolio model provided by Goldman Sachs, which contains investor’ subjective sense. At present the subjective returns is predicted by arbitrary prediction. It is defective because the market is inefficient.In this paper, using A share market data in ShangHai, we verify that BMA is more powerful than the others.This model is not only important for Black-Literman,but is enlightening for other financial statistical predictions.

Key words: Black-Litterman Model, Subjective Returns, BMA Model