
economic-moat
用户需要评估一个企业的长期竞争力和定价权——它能否在极少额外资本下持续增长利润。 语言信号:"这个公司有护城河吗"/"竞争优势在哪里"/"为什么这个公司能长期赚钱"/"品牌值多少钱" 不适用于:纯粹的行业分析(不涉及单个企业竞争力评估时)。
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/kangarooking/buffett-letters-skill --skill economic-moat- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads economic-moat automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
经济商誉 / 护城河识别
R — 原文 (Reading)
"GEICO's cost advantage is like a moat protecting a much-sought-after business castle." (1986) "Economic goodwill does not, in many cases, diminish. Indeed, in a great many instances it actually grows in value over time. In character, economic goodwill is much like land." (1999)
I — 方法论骨架
经济商誉 = 品牌+市场地位+定价权+客户忠诚度 → 使企业能在极少额外资本下增长利润。
关键区分:
- 会计商誉会摊销减少;经济商誉往往随时间增长(如土地)
- 经济商誉的核心标志:不需要大量资本投入就能增长利润
- 护城河 = 保护经济商誉不被侵蚀的屏障(成本优势/品牌/网络效应/切换成本/许可)
- 商品企业(无护城河):只有产能短缺时才能赚好钱
A1 — 书中的应用
案例1: See's Candy
- 问题: 为什么一个糖果公司值$2500万?
- 使用: 经济商誉识别——See's能在不增加资本的情况下通过品牌定价权增长利润
- 结果: 50年产生超$20亿税前利润,投入资本极少
案例2: GEICO的护城河
- 使用: 成本优势作为护城河——承保费用23.5% vs 对手38.5%
- 结果: 持续的市场份额增长和承保盈利
A2 — 触发场景
- 评估一个公司是否有长期竞争力
- 判断一个品牌是否值溢价
- 决定是否应该为"优秀企业"支付溢价
- 分析为什么某些公司能在行业中长期领先
语言信号
- "这个公司有护城河吗?"
- "竞争优势可持续吗?"
- "为什么这个品牌能收溢价?"
- "需要多少资本才能增长?"
与相邻 skill 的区分
- 与
cigar-butt-vs-great-business的区别:雪茄蒂vs伟大企业是投资策略选择,护城河是具体的分析工具
E — 可执行步骤
-
识别护城河类型(至少一种)
- 成本优势 / 品牌力 / 网络效应 / 切换成本 / 规模效应 / 许可壁垒
- 完成标准:指出具体类型并给出证据
-
检验资本需求
- 完成标准:计算"利润增长需要的额外资本"比例——越低越好
- 判停:如果利润增长需要等比例的资本投入 → 可能没有经济商誉
-
检验耐久性
- 完成标准:回答"这个护城河10年后还在吗?"并给出理由
B — 边界
- 护城河不是永久的——技术变革可以摧毁最深的护城河(柯达、诺基亚)
- 经济商誉难以量化——不能精确计算出"护城河值多少"
- 作者盲点:巴菲特低估了科技行业护城河(平台效应/网络效应)——Apple后期投资证明护城河分析需要与时俱进
相关 skills (阶段 3 填充)
- depends-on: circle-of-competence
- composes-with: aesop-three-questions, business-picker
审计信息
- 验证通过: V1 ✓ / V2 ✓ / V3 ✓
- 蒸馏时间: 2026-04-16
FAQ
What does the economic-moat skill do?
用户需要评估一个企业的长期竞争力和定价权——它能否在极少额外资本下持续增长利润。 语言信号:"这个公司有护城河吗"/"竞争优势在哪里"/"为什么这个公司能长期赚钱"/"品牌值多少钱" 不适用于:纯粹的行业分析(不涉及单个企业竞争力评估时)。
How do I install economic-moat?
Run npx skills add https://github.com/kangarooking/buffett-letters-skill --skill economic-moat in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/economic-moat/ (personal) or .claude/skills/economic-moat/ (project).
Which AI agents can use economic-moat?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is economic-moat safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains economic-moat?
It is published by kangarooking in kangarooking/buffett-letters-skill. It has 56 recorded installs.
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