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Can Asset Pricing Models Price Idiosyncratic Risk in U.K. Stock Returns?
Author(s) -
Fletcher Jonathan
Publication year - 2007
Publication title -
financial review
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.621
H-Index - 47
eISSN - 1540-6288
pISSN - 0732-8516
DOI - 10.1111/j.1540-6288.2007.00181.x
Subject(s) - capital asset pricing model , systematic risk , rational pricing , consumption based capital asset pricing model , stock (firearms) , economics , stochastic discount factor , arbitrage pricing theory , econometrics , financial economics , mechanical engineering , engineering
I examine how well different linear factor models and consumption‐based asset pricing models price idiosyncratic risk in U.K. stock returns. Correctly pricing idiosyncratic risk is a significant challenge for many of the models I consider. For some consumption‐based models, there is a clear tradeoff in the performance of the models between correctly pricing systematic risk and idiosyncratic risk. Linear factor models do a better job in most cases in pricing systematic risk than consumption‐based models but the reverse is true for idiosyncratic risk.