PERTURBATION CONTROL is a restriction control to limit the access a particular user has to details in a database. It introduces noise into the output (perturbs, or changes it) to shield the specifics of one record from the person who has only access to summary information.
HYBRID INSTRUMENT is a package containing two or more different kinds of risk management instruments that are usually interactive.
MODEL B Z-SCORE (For Private General Firm) Model B Z-Score is appropriate for a private general non-manufacturing firm. A Z-Score of 2.60 or above indicates that bankruptcy in not likely, buyt a Z-Score of 1.10 or below is a strong indicator that bankruptcy is likely. Probabilities of bankruptcy within the above ranges are 95% for one year and 70% within two years. A Z-Score between the two is the gray area. Obviously a higher Z-Score is desirable.
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