Form: 10-K

Annual report pursuant to Section 13 and 15(d)

April 12, 2002

Published on April 12, 2002


EXHIBIT 11


BARRETT BUSINESS SERVICES, INC.
STATEMENT OF CALCULATION OF BASIC
AND DILUTED COMMON SHARES OUTSTANDING





Year Ended
December 31, 2001
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Weighted average number of basic shares outstanding 6,193,119

Stock option plan shares to be issued at prices ranging from $1.45 to $17.75
per share -

Less: Assumed purchase at average market price during the period using
proceeds received upon exercise of options and purchase of stock,
and using tax benefits of compensation due to premature dispositions -
---------------------------

Weighted average number of diluted shares outstanding 6,193,119
===========================

As a result of the net loss reported for the year ended December 31, 2001,
25,779 of potential common shares have been excluded from the calculation of
diluted loss per share because their effect would be anti-dilutive.