Investment Advisory Agreement Calvert Asset Management Company, Inc. Calvert World Values Fund, Inc. Addendum to Schedule A

Exhibit (d)(1)

Investment Advisory Agreement
Xxxxxxx Asset Management Company, Inc.
Xxxxxxx World Values Fund, Inc.

Addendum to Schedule A

As compensation pursuant to Section 4 of the Investment Advisory Agreement between Xxxxxxx Asset Management Company, Inc. (the "Advisor") and Xxxxxxx World Values Fund, Inc. ("CWVF") dated March 1, 1999, with respect to Xxxxxxx International Opportunities Fund (the "Fund"), the Advisor is entitled to receive from the Fund an annual advisory fee (the "Fee") as shown below. The Fee shall be computed daily and payable monthly, based on the average daily net assets of the Fund.

Xxxxxxx International Opportunities Fund:                          0.80%

Date: May 31, 2007