Exhibit 23.1

               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Registration Statements
(Form S-8 No. 333-63451, 333-62910 and 333-97163) pertaining to the 1998
Incentive and Nonqualified Stock Option Plan of Charles River Associates
Incorporated and (Form S-8 No. 333-63453) pertaining to the 1998 Employee Stock
Purchase Plan of Charles River Associates Incorporated of our report dated
January 10, 2003, with respect to the consolidated financial statements of
Charles River Associates Incorporated included in the Annual Report (Form 10-K)
for the year ended November 30, 2002.



Boston, Massachusetts
February 27, 2003