A Valuation Principal Takes Issue With Revenue Ruling 59-60:  "Does Analysis of Macroeconomic Conditions Add Credibility to My Opinion of  Privately Owned Company Value In My Region?" Rick Warner, ASA, AVA, Principal, Great Lakes Valuations writes that "Most of us as appraisers are familiar with Revenue Ruling 59-60 and its prescription for factors to be considered as part of the valuation of the stock of c ...