Market Proxies, Correlation, and Relative Mean-Variance Efficiency: Still Living with the Roll Critique Report as inadecuate




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Abstract

A test of the CAPM is developed conditional on a prior belief about the correlation between the true market return and the proxy return used in the test. Consideration is given to the effect of the proxy-s mismeasurement of the market return on the estimation of the market model. Failure to grant this consideration biases tests towards rejection by overstating the inefficiency of the proxy. An extension of the proposed test to a CAPM with conditioning information links mismeasurement of the market return to time-variation in beta.



Item Type: MPRA Paper -

Original Title: Market Proxies, Correlation, and Relative Mean-Variance Efficiency: Still Living with the Roll Critique-

Language: English-

Keywords: Asset pricing, CAPM, portfolio efficiency, multivariate testing, bootstrap hypothesis testing, triangular systems, endogeneity, identification, GMM, conditional heteroskedasticity, GARCH-

Subjects: C - Mathematical and Quantitative Methods > C3 - Multiple or Simultaneous Equation Models ; Multiple Variables > C32 - Time-Series Models ; Dynamic Quantile Regressions ; Dynamic Treatment Effect Models ; Diffusion Processes ; State Space ModelsG - Financial Economics > G1 - General Financial Markets > G12 - Asset Pricing ; Trading Volume ; Bond Interest Rates-





Author: Todd, Prono

Source: https://mpra.ub.uni-muenchen.de/20031/



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