The rescue comes with limitations for Citi: it will have to comply with "enhanced" executive compensation restrictions, according to a joint statement from the FDIC, Federal Reserve Board and Treasury, and it will implement the FDIC's mortgage modification program.

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While Pandit told a number of outlets that the decision to step down was his, the abrupt nature of his resignation led to speculation that dissatisfaction with his compensation, or board gripes with his handling of the Morgan Stanley Smith Barney joint venture, was at the heart of the matter.

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" A joint statement with GM on Wednesday said, "Renault and Nissan consider that the principle of compensation is contrary to the spirit of any successful alliance.

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