Dec 11, 2008
Q & A
What is the validity of book value in today's environment, especially as it applies to financial firms?

EFF/KRF: There is always an issue about how to "properly" measure value. But all the work we have done says that at least for diversified portfolios, it doesn't much matter.

Alternative price ratios, like earnings/price and cashflow/price, work about as well as book/price, in terms of identifying value stocks and growth stocks. Every ratio has its problems because whatever fundamental one puts in the numerator has its own accounting issues. As a result, there are inevitable misclassifications of stocks, but they should wash out in diversified portfolios like ours.

We don't see any special problems with the book/price ratios of financial companies.

ABOUT FAMA AND FRENCH
Eugene F. Fama
The Robert R. McCormick Distinguished Service Professor of Finance at the University of Chicago Booth School of Business
Kenneth R. French
The Carl E. and Catherine M. Heidt Professor of Finance at the Tuck School of Business at Dartmouth College
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