The low power of the standard Wald test in a GARCH-in-Mean model with an unnecessary intercept is shown to explain the apparent absence of a risk-return tradeoff in stocks. The importance of this finding is illustrated with monthly U.S. data. (c) 2006 Elsevier B.V. All rights reserved.
机构:
Peking Univ, HSBC Business Sch, Shenzhen, Peoples R China
Catholic Univ Louvain, CORE, Louvain, BelgiumPeking Univ, HSBC Business Sch, Shenzhen, Peoples R China
Wang, Cindy S. H.
Chen, Yi-Chi
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机构:
Natl Cheng Kung Univ, Dept Econ, Taipei, TaiwanPeking Univ, HSBC Business Sch, Shenzhen, Peoples R China
Chen, Yi-Chi
Lo, Hsin-Yu
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机构:
Natl Tsing Hua Univ, Dept Quantitat Finance, Taipei, TaiwanPeking Univ, HSBC Business Sch, Shenzhen, Peoples R China