# Market Sizing Analysis

> This skill should be used when the user asks to "calculate TAM",

This skill should be used when the user asks to "calculate TAM",

- Page: https://ss33.ai/skills/dokhacgiakhoa/market-sizing-analysis-55755781704
- Publisher: dokhacgiakhoa
- Category: [Business](https://ss33.ai/skills/category/business-y1h0vy) › [Misc](https://ss33.ai/skills/category/business-y1h0vy/misc-sul9ee)
- License: MIT
- Source: https://github.com/dokhacgiakhoa/agent-skills-4-vibe-coding-cli/blob/c4a059bbf7a8d6b2162071f0fbfe74053faa6d20/.agent/skills/market-sizing-analysis/SKILL.md

## Skill

SKILL.md: https://ss33.ai/api/v1/ss33/download/dokhacgiakhoa/market-sizing-analysis-55755781704

# Market Sizing Analysis

Comprehensive market sizing methodologies for calculating Total Addressable Market (TAM), Serviceable Available Market (SAM), and Serviceable Obtainable Market (SOM) for startup opportunities.

## Use this skill when

- Working on market sizing analysis tasks or workflows
- Needing guidance, best practices, or checklists for market sizing analysis

## Do not use this skill when

- The task is unrelated to market sizing analysis
- You need a different domain or tool outside this scope

## Instructions

- Clarify goals, constraints, and required inputs.
- Apply relevant best practices and validate outcomes.
- Provide actionable steps and verification.
- If detailed examples are required, open `resources/implementation-playbook.md`.

## Overview

Market sizing provides the foundation for startup strategy, fundraising, and business planning. Calculate market opportunity using three complementary methodologies: top-down (industry reports), bottom-up (customer segment calculations), and value theory (willingness to pay).

## Core Concepts

## 🧠 Knowledge Modules (Fractal Skills)

### 1. [The Three-Tier Market Framework](./sub-skills/the-three-tier-market-framework.md)
### 2. [When to Use Each Methodology](./sub-skills/when-to-use-each-methodology.md)
### 3. [Methodology 1: Top-Down Analysis](./sub-skills/methodology-1-top-down-analysis.md)
### 4. [Methodology 2: Bottom-Up Analysis](./sub-skills/methodology-2-bottom-up-analysis.md)
### 5. [Methodology 3: Value Theory](./sub-skills/methodology-3-value-theory.md)
### 6. [Step 1: Define the Market](./sub-skills/step-1-define-the-market.md)
### 7. [Step 2: Gather Data Sources](./sub-skills/step-2-gather-data-sources.md)
### 8. [Step 3: Calculate TAM](./sub-skills/step-3-calculate-tam.md)
### 9. [Step 4: Calculate SAM](./sub-skills/step-4-calculate-sam.md)
### 10. [Step 5: Calculate SOM](./sub-skills/step-5-calculate-som.md)
### 11. [Step 6: Validate and Triangulate](./sub-skills/step-6-validate-and-triangulate.md)
### 12. [SaaS Markets](./sub-skills/saas-markets.md)
### 13. [Marketplace Markets](./sub-skills/marketplace-markets.md)
### 14. [Consumer Markets](./sub-skills/consumer-markets.md)
### 15. [B2B Services](./sub-skills/b2b-services.md)
### 16. [For Investors](./sub-skills/for-investors.md)
### 17. [For Strategy](./sub-skills/for-strategy.md)
### 18. [Reference Files](./sub-skills/reference-files.md)
### 19. [Example Files](./sub-skills/example-files.md)