Premium
Expected Returns, Time‐varying Risk, and Risk Premia
Author(s) -
EVANS MARTIN D. D.
Publication year - 1994
Publication title -
the journal of finance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 18.151
H-Index - 299
eISSN - 1540-6261
pISSN - 0022-1082
DOI - 10.1111/j.1540-6261.1994.tb05156.x
Subject(s) - risk premium , economics , capital asset pricing model , stock (firearms) , econometrics , covariance , financial economics , mathematics , mechanical engineering , statistics , engineering
A new empirical model for intertemporal capital asset pricing is presented that allows both time‐varying risk premia and betas where the latter are identified from the dynamics of the conditional covariance of returns. The model is more successful in explaining the predictable variations in excess returns when the returns on the stock market and corporate bonds are included as risk factors than when the stock market is the single factor. Although changes in the covariance of returns induce variations in the betas, most of the predictable movements in returns are attributed to changes in the risk premia.