CARTE BLANCHE is unrestricted power to act at ones own discretion, i.e. unconditional authority.
TRACE is to follow a transaction through the steps of the system.
INVESTMENT BANKER is an underwriter who serves as a middleman between a corporation issuing new securities and the public. Usually, an investment banker, or several investment bankers in a syndicate, buy the securities issue outright, then sell the securities to individuals or institutions.
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