A net beta test of asset pricing models Cherif Guermat Mark Freeman 2134/15029 https://repository.lboro.ac.uk/articles/journal_contribution/A_net_beta_test_of_asset_pricing_models/9503447 While many recent empirical studies of the CAPM have used conditional beta tests, this technique has recently been shown to have several weaknesses. Here we introduce a new, more robust, net beta test which shares a number of characteristics with conditional beta tests. The method is extended to the multi-factor case when there are mimicking portfolios of assets for the underlying factors, including the Fama-French three-factor model. We demonstrate theoretically, by simulation and using market data that the net beta estimators have lower standard errors than those generated by the standard Fama-MacBeth test. © 2009 Elsevier Inc. All rights reserved. 2014-06-26 10:50:59 Factor models Capital asset pricing Conditional beta tests Law Business and Management not elsewhere classified