Berkshire Hathaway 1978 Shareholder Letter: The Limitations of Accounting Consolidation and the Capital Trap in Textiles

In his 1978 letter to shareholders, Warren E. Buffett explores the financial presentation complexities resulting from the merger between Berkshire Hathaway Inc. and Diversified Retailing Company, Inc. Buffett notes that while accounting standards require the complete consolidation of subsidiaries like Blue Chip Stamps—including sales, expenses, accounts receivable, and other items—onto the balance sheet and income statement, this aggregation often "masks economic reality rather than clarifying it." He emphasizes that this consolidated reporting format is not the perspective used internally by management; therefore, he provides segment information in the letter to present each operating entity from "the same vantage point managers view them." This perspective reminds investors not to rely blindly on standardized accounting aggregates but to focus on the actual economic characteristics of business units and how management evaluates their performance.

The discussion regarding the textile business in the letter is a classic case study for understanding capital allocation logic. Buffett candidly admits that although the book value of the textile mill's equipment was far below its replacement cost, and the equipment functioned similarly to new machinery, the industry had relatively low capital turnover because higher levels of investment were required in accounts receivable and inventory relative to sales volume. "Slow capital turnover combined with low profit margins inevitably leads to inadequate returns on capital." He further analyzes that capital-intensive enterprises producing relatively undifferentiated products must earn inadequate returns unless there is supply tightness or genuine shortage. As long as excess production capacity exists, prices tend to reflect direct operating costs rather than the capital invested. This mechanism explains why Berkshire struggled to achieve excess returns in textiles despite owning cheap assets, thereby establishing the importance of avoiding industries with such structural disadvantages.