earns on investment within its business. The solution to the problem is: William J. Baumol, The Quarterly Journal of Economics, (November 1952), 545–556. where is the cash balance is the average negative cash flow in a given period is the [discount rate] that cover the factoring costs is the rate of return on the firm's assets. As a general rule, when cash flow tends to be positive on average. However, as mentioned, there are periods of time in which cash flow can be negative (more cash flows out than in). Today factoring's rationale still includes the financial task of advancing funds to smaller rapidly growing firms who sell to larger more credit-worthy organizations. While almost never taking possession of the goods sold, factors offer various combinations of money and supportive services when advancing funds. Factors often provide their clients four key services: information on the creditworthiness of their prospective customers domestic and international, and, in nonrecourse factoring, acceptance of the credit risk for "approved" accounts; maintain the history of payments by customers (i.e., accounts receivable ledger); daily management reports on collections; and, make the actual collection calls. The outsourced credit function both extends the small firms effective addressable marketplace and insulates it from the survival-threatening destructive impact of a bankruptcy or financial difficulty of a major customer. A second key service is the operation of the accounts receivable function. The services eliminate the need and cost for permanent skilled staff found within large firms. Although today even they are outsourcing such back-office functions. More importantly, the services insure the entrepreneurs and owners against a major source of a liquidity crises and their equity. Process The factoring process can be broken up into two parts: the initial account setup and ongoing funding. Setting up a factoring account typically takes one to two weeks and involves submitting an application, a list of clients, an accounts receivable aging report and a sample invoice. The approval process involves detailed underwriting, during which time the factoring company can ask for additional documents, such as documents of incorporation, financials, and banks statements. If approved, the business will be set up with a maximum credit line from which they can draw. In the case of notification factoring, the arrangement is not confidential and approval is contingent upon successful notification; a process by which factoring companies send the business's client or account debtor a Notice of Assignment. The