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Quality investing is an investment strategy based on a set of clearly defined fundamental criteria that seeks to identify companies with outstanding quality characteristics. The quality assessment is made based on soft (e.g. management credibility) and hard criteria (e.g. balance sheet stability). Quality Investing supports best overall rather than best-in-class approach. == History == The idea for quality investing originated in the bond and real estate investing, where both the quality and price of potential investments are determined by ratings and expert attestations. Later the concept was applied to investments in enterprises in equity markets. Benjamin Graham, the founding father of value investing, was the first to recognize the quality problem among equities back in the 1930s. Graham classified stocks as either quality or Low quality. He also observed that the greatest losses result not from buying quality at an excessively high price, but from buying Low quality at a price that seems good value.〔Benjamin Graham (1949). ''The Intelligent Investor'' , New York: Collins. ISBN 0-06-055566-1.〕 Warren Buffett said that one wants to buy companies that can be run by idiots, because some day they will be.〔(【引用サイトリンク】url=http://www.bloomberg.com/bw/magazine/content/10_43/b4200094810873.htm )〕 The quality issue in a corporate context attracted particular attention in the management economics literature following the development of the BCG matrix in 1970. Using the two specific dimensions of life cycle and the experience curve concept, the matrix allocates a company's products – and even companies themselves – to one of two quality classes (Cash Cows and Stars) or two Non-quality classes (question Marks and Dogs). Other important works on quality of corporate business can be found primarily among the US management literature. These include, for example, "In Search of Excellence" by Thomas Peters and Robert Waterman,〔Thomas Peters and Robert Waterman (1982). ''In Search of Excellence''. ISBN 0-06-015042-4〕 "Built to Last" by Jim Collins and Jerry Porras,〔Jim Collins and Jerry Porras (1994). ''Built to Last''. ISBN 978-0-88730-739-3〕 and "Good to Great" by Jim Collins.〔Jim Collins (2001). ''Good to Great'' . ISBN 978-0-06-662099-2〕 Quality investing gained credence in particular after the burst of the Dot-com bubble in 2001 when investors witnessed the spectacular failures of companies such as Enron and Worldcom. These corporate collapses focused investors’ awareness on quality, which may vary from stock to stock. Investors started to pay more attention to quality of balance sheet, earnings quality, information transparency, corporate governance quality. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Quality investing」の詳細全文を読む スポンサード リンク
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