For purposes of this article, “liquid assets” means cash, cash equivalents, and marketable securities readily convertible into cash. Liquid assets also include bonds, stocks, certificates of deposit, negotiable short-term instruments, service members’ dues receivable not over 90 days, receivables due from affiliates not over 90 days, acquisition costs deferred not over 90 days, federal income tax recoverables, and interest and dividends due and accrued.