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wiki/concepts/TAM-SAM-SOM.md
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title: "TAM/SAM/SOM"
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type: concept
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tags: [market-sizing, business-analysis]
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sources: [raw/Agent/agency-agents/product/product-trend-researcher.md]
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last_updated: 2026-04-20
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---
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## Definition
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TAM/SAM/SOM 是市场规模分析的三层模型,用于量化市场机会的大小和可实现性。
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## Three Layers
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- **TAM(Total Addressable Market)**:总可寻址市场,自顶向下和自底向上分析
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- **SAM(Serviceable Addressable Market)**:可服务市场,考虑地理和业务约束后的现实市场机会
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- **SOM(Serviceable Obtainable Market)**:可获得市场,通过竞争分析确定的可实现市场份额
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## Analysis Methods
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- Top-down Analysis:自顶向下,从宏观市场向下分解
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- Bottom-up Analysis:自底向上,从细分市场向上聚合
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- Validation:交叉验证确保准确性
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