护城河也会干涸，如果没有“再投资能力”

Core Concept - The article discusses the concept of "economic moats" as defined by Morningstar, emphasizing the importance of a company's ability to generate excess returns over a long period [6][7][8]. Group 1: Economic Moat Definition and Characteristics - Economic moats are defined as a company's ability to maintain excess returns, with a wider moat indicating a slower decline into mediocrity [8]. - Morningstar categorizes economic moats into three types: Wide Moat, Narrow Moat, and No Moat, with specific quantitative definitions and characteristics for each [10]. - A company with a Wide Moat is expected to sustain excess returns for at least 20 years, while a Narrow Moat can maintain excess returns for at least 10 years [9][10]. Group 2: Importance of Valuation - Valuation is crucial in assessing moat companies, with Morningstar advocating for a dynamic valuation standard based on the certainty of a company's business model [17][18]. - Different levels of uncertainty in a company's valuation require varying degrees of discount for buying and premium for selling [20]. - The article highlights that a more nuanced approach to valuation, based on business models, is more aligned with market realities than a blanket tolerance for good companies [21]. Group 3: ETF and Performance Comparison - Morningstar's moat investment philosophy is encapsulated in the VanEck Morningstar Wide Moat ETF (MOAT), which has been in existence since 2012 [22]. - As of the end of 2025, the MOAT ETF underperformed the S&P 500 index, primarily due to the recent market dynamics dominated by a few large-cap stocks [23][25]. - Despite underperforming the S&P 500, the MOAT ETF still showed better performance compared to an equal-weighted S&P 500 index [25]. Group 4: Evolution of Moat Concept - The article references Pat Dorsey, who expanded on the moat concept after leaving Morningstar, introducing categories like Legacy Moat and Reinvestment Moat [27][28]. - Legacy Moat companies have strong competitive advantages but limited growth opportunities, while Reinvestment Moat companies can reinvest profits into high-return opportunities [28]. - The article also discusses the emergence of Capital Light Compounders, which leverage network effects for growth with minimal capital investment [29].