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GMM and present value tests of the C-CAPM under Transactions Costs: Evidence from the UK stock market


  • A. Gregoriou



In this paper we test for the inclusion of the bid-ask spread in the consumption CAPM, in the UK stock market over the time period of 1980-2000. Two econometric models are used; first, Fisher’s (1994) asset pricing model is estimated by GMM, and secondly, the VAR approach proposed by Campbell and Shiller is extended to include the bid-ask spread. Overall the statistical tests are unable to reject the bid-ask spread as an independent explanatory variable in the C-CAPM. This leads to the conclusion that transactions costs should be included in asset pricing models.

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  • A. Gregoriou & CHRISTOS IOANNIDIS, 2003. "GMM and present value tests of the C-CAPM under Transactions Costs: Evidence from the UK stock market," Economics and Finance Discussion Papers 03-01, Economics and Finance Section, School of Social Sciences, Brunel University.
  • Handle: RePEc:bru:bruedp:03-01

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