Exhibit 3
---------
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934,
as amended, each of the undersigned Reporting Persons hereby agrees to the joint
filing, along with all other such Reporting Persons, on behalf of each of them
of a statement on Schedule 13G (including amendments thereto) with respect to
the Common Stock, $0.10 par value, of USG Corporation, and that this Agreement
be included as an Exhibit to such joint filing. This Agreement may be executed
in any number of counterparts, all of which taken together shall constitute one
and the same instrument.
IN WITNESS WHEREOF, each of the undersigned hereby executes this Agreement as of
this 28th day of December, 2004.
D. E. Shaw Laminar Portfolios, L.L.C.
By: X. X. Xxxx & Co., L.L.C., as
managing member
By: /s/ Xxxxxx Xxxxxx
------------------------------
Xxxxxx Xxxxxx
Managing Director
X. X. Xxxx & Co., L.P.
By: /s/ Xxxxxx Xxxxxx
------------------------------
Xxxxxx Xxxxxx
Managing Director
X. X. Xxxx & Co., L.L.C.
By: /s/ Xxxxxx Xxxxxx
------------------------------
Xxxxxx Xxxxxx
Managing Director
Xxxxx X. Xxxx
By: /s/ Xxxxxx Xxxxxx
------------------------------
Xxxxxx Xxxxxx
Attorney-in-Fact for Xxxxx X. Xxxx
