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Title: Factor models for asset returns based on transformed factors
Authors: Li, J 
Zhang, W 
Kong, E 
Keywords: stat.ME
Issue Date: 1-Dec-2018
Publisher: Elsevier BV
Citation: Li, J, Zhang, W, Kong, E (2018-12-01). Factor models for asset returns based on transformed factors. Journal of Econometrics 207 (2) : 432-448. ScholarBank@NUS Repository.
Abstract: © 2018 Elsevier B.V. The Fama–French three factor models are commonly used in the description of asset returns in finance. Statistically speaking, the Fama–French three factor models imply that the return of an asset can be accounted for directly by the Fama–French three factors, i.e. market, size and value factor, through a linear function. A natural question is: would some kind of transformed Fama–French three factors work better? If so, what kind of transformation should be imposed on each factor in order to make the transformed three factors better account for asset returns? In this paper, we are going to address these questions through nonparametric modelling. We propose a data driven approach to construct the transformation for each factor concerned. A generalised maximum likelihood ratio based hypothesis test is also proposed to test whether transformations on the Fama–French three factors are needed for a given data set. Asymptotic properties are established to justify the proposed methods. Extensive simulation studies are conducted to show how the proposed methods perform with finite sample size. Finally, we apply the proposed methods to a real data set, which leads to some interesting findings.
Source Title: Journal of Econometrics
ISSN: 0304-4076
DOI: 10.1016/j.jeconom.2018.09.001
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