UNSECURED is obligation backed not by collateral but only by the integrity of the borrower. Opposite of secured.
BUSINESS MATRIX, often used in business incubators, is where separate business entities join forces to advance the development of a start-up, e.g.., one firm may offer offices, another marketing/sales assistance or manufacturing expertise, etc. Such a matrix may receive compensation in the form of equity from the start-up being assisted by that business matrix.
PA is Public Accountant.
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