Using the Empirical Method Business appraisers around the country have historically used comparisons to the averages found in restricted stock studies to determine a discount for lack of marketability in their valuations of a privately held, noncontrolling interest in a business. While the average discounts from restricted stock studies are useful and indicate that discounts for lack of marketability do occur in arm’s length transactions, more analysis is needed to apply the underlying data to the valuation of privately held minority interests. In this article, the author illustrates his views developing the DLOM.