EXHIBIT 99.1
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                        CERTIFICATION OF CEO PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Gabelli Asset Management
Inc.(the "Company") for the year ended December 31, 2002 as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), Mario J.
Gabelli, as Chief Executive Officer of the Company, hereby certifies, pursuant
to 18 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the Sarbanes-Oxley Act
of 2002, that, to the best of his knowledge:

     (1) The Report fully complies with the requirements of Section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

     (2) The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company.


/s/ Mario J. Gabelli
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Name: Mario J. Gabelli
Title: Chief Executive Officer
Date: March 28, 2003

This certification accompanies the Report pursuant to ss. 906 of the
Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the
Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of ss.18
of the Securities Exchange Act of 1934, as amended.