Testing the conditional CAPM and the effect of intervaling: A note

Timothy J. Brailsford, Robert W. Faff

Research output: Contribution to journalArticleResearchpeer-review

15 Citations (Scopus)

Abstract

Traditional tests of asset pricing undertaken within the CAPM framework have provided mixed results. One explanation for the supposed failure of the model is its inability to account for temporal dependence in unconditional residuals which can be induced by time-variation in volatility. This paper provides a test of the conditional CAPM utilising the GARCH-M framework thereby allowing for non-constant variance. The paper utilises data from the Australian equity market and extends existing research by investigating the effect of intervaling by conducting tests over different sampling frequencies. While some support is found for the GARCH-M specification, the inability of the 'in-mean' parameter to achieve statistical significance is an empirical limitation. Despite this finding, the conditional CAPM is supported for weekly and monthly return intervals while the greatest support for the model is found in the weekly return interval. Thus, we demonstrate that asset pricing tests in this context are sensitive to the return interval.

Original languageEnglish
Pages (from-to)527-537
Number of pages11
JournalPacific Basin Finance Journal
Volume5
Issue number5
DOIs
Publication statusPublished - Dec 1997
Externally publishedYes

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Conditional CAPM
Testing
GARCH-M model
Asset pricing
Equity markets
Time variation
Statistical significance
Sampling
Capital asset pricing model

Cite this

Brailsford, Timothy J. ; Faff, Robert W. / Testing the conditional CAPM and the effect of intervaling : A note. In: Pacific Basin Finance Journal. 1997 ; Vol. 5, No. 5. pp. 527-537.
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Testing the conditional CAPM and the effect of intervaling : A note. / Brailsford, Timothy J.; Faff, Robert W.

In: Pacific Basin Finance Journal, Vol. 5, No. 5, 12.1997, p. 527-537.

Research output: Contribution to journalArticleResearchpeer-review

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