This paper argues that a test of beta insignificance, commonly used in empirical studies of the CAPM, predisposes studies toward rejecting the CAPM. Under the null hypothesis of these tests, the CAPM is false. Consequently, insufficient evidence to reject the null is taken as sufficient evidence...

We find that the short-term deviations from long-run consumption-wealth relationship (cay) forecast stock market returns and serve as a conditioning variable in the capital asset pricing model (CAPM) for explaining the cross-section of stock returns for the United Kingdom and Japan. Our...