EXHIBIT 99.1
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act
of 1934, as amended, each of the undersigned hereby agrees to the joint filing,
along with all other such undersigned, on behalf of the Reporting Persons (as
defined in the joint filing), of a statement on Schedule 13D (including
amendments thereto) with respect to the common stock, par value $0.01 per share,
of Ceridian 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 18th day of January, 2007.
PERSHING SQUARE CAPITAL MANAGEMENT, L.P.
By: PS Management GP, LLC,
its General Partner
By: /s/ Xxxxxxx X. Xxxxxx
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Xxxxxxx X. Xxxxxx
Managing Member
PS MANAGEMENT GP, LLC
By: /s/ Xxxxxxx X. Xxxxxx
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Xxxxxxx X. Xxxxxx
Managing Member
PERSHING SQUARE GP, LLC
By: /s/ Xxxxxxx X. Xxxxxx
-----------------------------------
Xxxxxxx X. Xxxxxx
Managing Member
/s/ Xxxxxxx X. Xxxxxx
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XXXXXXX X. XXXXXX
