摘要
本文使用HJ方差界检验了我国的股权溢价之谜,并比较了CRRA、递归效用与习惯形成三种不同的效用函数下模型的定价能力。本文的实证研究发现:(1)我国不存在股权溢价之谜,也不存在无风险利率之谜,该结论有别于以往的研究;(2)对该结论的可能解释在于,较高的股权溢价来自于对消费风险的补偿,而较强的预防性储蓄动机抵消了借贷以增加当期消费的效应;(3)相对基于CRRA效用函数的模型,引入递归效用和习惯形成的模型具有更强的定价能力。
In this paper, we investigate the equity premium puzzle in China with the Hansen-Jagannathan volatility bound, and also compare the pricing ability of different models such as CRRA, state-non-separable and habit formation of catching up with the Joneses. Our main findings are: (1) there is neither equity premium puzzle, nor risk free rate puzzle in China. (2) The high equity premium could be considered as the compensation for higher consumption risk in China' s economic transformation, and the behavior of precautionary saving reduce the incentive to borrow against growth in current consumption. (3) Incorporation of state-non-separable preference and habit formation will increase the pricing ability of the models.
出处
《南方经济》
北大核心
2007年第12期12-23,共12页
South China Journal of Economics
基金
国家自然科学基金项目(70473106
70673116)
教育部人文社会科学重点研究基地重大项目(05JJD790075)
中山大学"985工程"产业与区域发展研究创新基地
广东省普通高校人文社会科学重点研究基地经费资助