All other things may not be equal, however.

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If you start to feel frustrated, just remember: all mileage programs may not be created equal, but all mileage members are equally confused.

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So, contrary to what many think, an equal division of an estate may not be a fair one.

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For not all bonds are created equal, and investors may be unwittingly increasing their exposure to equity risk by allocating portions of their fixed income exposure to high-yield bonds, which behave much like equities.

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But when you pick a real estate investment trust, other things are not necessarily equal: The outfit run by a smart guy like Sam Zell may be overpriced.

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