Which of the following is NOT a method for valuing a minority, marketable interest?

The net book value method is not typically used for valuing a minority, marketable interest because it primarily reflects the accounting value of a company's assets and liabilities as recorded on its balance sheet. This method provides a snapshot of the company's financial position rather than an assessment of the value of ownership interests or their marketability.

In contrast, the other methods listed focus on market dynamics or the income-generating potential of an investment. The guideline public company method compares the subject company to publicly traded companies to establish a relative value based on market perceptions. The discounted future benefits method projects future cash flows or earnings generated by an investment and discounts them to present value, reflecting its potential for generating returns. The capitalization of benefits method involves taking expected benefits and applying a capitalization rate to determine worth, often used in income-based approaches to valuation.

Each of these methods considers both the operational effectiveness of the business and the potential marketability of ownership interests, unlike the net book value method, which is more static and does not capture the full market context.