SCHEDULE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

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Calvert Responsible Index Series, Inc.

Calvert Impact Fund, Inc.

Calvert Social Investment Fund

Calvert World Values Fund, Inc.

Calvert Management Series

The Calvert Fund

(Name of Registrant as Specified in Its Charter)

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(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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Calvert Responsible Index Series, Inc.

Calvert Impact Fund, Inc.

Calvert Social Investment Fund

Calvert World Values Fund, Inc.

Calvert Management Series

The Calvert Fund

IMPORTANT NOTICE:

Special Meeting of Shareholders Adjourned

Dear Shareholder:

We recently sent you proxy materials concerning important proposals affecting your fund, which were considered at a Special Meeting of Shareholders on December 16, 2016. The meeting has been adjourned with respect to your funds’ proposals in order to allow shareholders more time to submit their voting instructions. The meeting will reconvene on January 27, 2017 at the principal offices of Calvert Research and Management, 4550 Montgomery Avenue, Suite 1000N, Bethesda, Maryland. This letter was sent because you held shares in the fund on the October 18, 2016 record date and we have not received your vote.

YOUR FUND’S BOARD RECOMMENDS YOU VOTE "FOR" THE PROPOSALS

YOUR VOTE IS VERY IMPORTANT

VOTING NOW HELPS AVOID UNNECESSARY COMMUNICATIONS WITH

SHAREHOLDERS AND ELIMINATES PHONE CALLS

Voting takes only a few moments. Please vote using one of the following options:

VOTE ONLINE

Log on to the website listed on your proxy card or voting instruction form. Please have your proxy card or voting instruction form in hand to access your control number and follow the on screen instructions.

VOTE BY TOUCH-TONE TELEPHONE

Call the toll free number listed on your proxy card or voting instruction form. Please have your proxy card or voting instruction form in hand to access your control number and follow the recorded instructions.

VOTE BY MAIL

Complete, sign and date the enclosed proxy card(s) or voting instruction form(s), then return them in the enclosed postage paid envelope.

The proxy materials we sent you contain important information regarding the proposals that you and other shareholders are being asked to consider. Please read the materials carefully. If you have any questions regarding the proposals, or need assistance with voting, you may call Computershare Fund Services, the fund’s proxy solicitor, toll free at 888-916-1719.

Thank you for your prompt attention to this matter. If you have already voted, we appreciate your participation.