A unified test for predictability of asset returns regardless of properties of predicting variables
Zongwu Cai and
Journal of Econometrics, 2019, vol. 208, issue 1, 141-159
Some unified tests have been proposed recently in the literature for testing predictability of asset returns based on a simple linear predictive regression model, which has a drawback that predicted variable cannot be stationary if the predicting variable is nonstationary. To solve this issue, this paper includes the difference of the predicting variable into the simple linear predictive regression. Furthermore, a unified empirical likelihood inference is developed to test the predictability regardless of the properties of the predicting variable. A simulation study is conducted to confirm the efficiency of the proposed methods before applying to a real example.
Keywords: Empirical likelihood; Predictive regression; Weighted score (search for similar items in EconPapers)
JEL-codes: C12 C22 (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:econom:v:208:y:2019:i:1:p:141-159
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