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Efficient Estimation of a Semiparametric Characteristic- Based Factor Model of Security Returns

Gregory Connor (), Matthias Hagmann and Oliver Linton ()
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Matthias Hagmann: Concordia Advisors and Swiss Finance Institute

No 07-26, Swiss Finance Institute Research Paper Series from Swiss Finance Institute

Abstract: This paper develops a new estimation procedure for characteristic-based factor models of security returns. We treat the factor model as a weighted additive nonparametric regression model, with the factor returns serving as time-varying weights, and a set of univariate nonparametric functions relating security characteristic to the associated factor betas. We use a time-series and cross-sectional pooled weighted additive nonparametric regression methodology to simultaneously estimate the factor returns and characteristic-beta functions. By avoiding the curse of dimensionality our methodology allows for a larger number of factors than existing semiparametric methods. We apply the technique to the three-factor Fama-French model, Carhart’s four-factor extension of it adding a momentum factor, and a five-factor extension adding an own-volatility factor. We find that momentum and own-volatility factors are at least as important if not more important than size and value in explaining equity return comovements. We test the multifactor beta pricing theory against the Capital Asset Pricing model using a standard test, and against a general alternative using a new nonparametric test.

Keywords: Additive Models; Arbitrage pricing theory; Factor model; Fama-French; Kernel estimation; Nonparametric regression; Panel data. (search for similar items in EconPapers)
JEL-codes: G12 C14 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-ecm and nep-fmk
Date: 2007-09
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Related works:
Working Paper: Efficient Estimation of a SemiparametricCharacteristic-Based Factor Model of Security Returns (2007) Downloads
Working Paper: Efficient estimation of a semiparametric characteristic-based factor model of security returns (2007) Downloads
Working Paper: Efficient estimation of a semiparametric characteristic-based factor model of security returns (2007) Downloads
Working Paper: Efficient Estimation of a Semiparametric Characteristic-Based Factor Model of Security Returns (2007) Downloads
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