What problem does it solve? Answering questions about market size, growth, and whether a market is worth entering often produces vague guesses or unsourced numbers. This Skill provides a disciplined workflow for building decision-useful market analyses with quantified estimates, explicit assumptions, and cited sources. ## Core Features & Use Cases - Market Sizing: Build TAM/SAM/SOM estimates using bottom-up models (customers, penetration, frequency, price) cross-checked against top-down figures, with formulas, ranges, and sensitivity shown. - Segmentation and Demand Analysis: Segment customers by needs, behavior, and willingness to pay, then evaluate demand signals like existing spend, adoption, retention, and competitor growth. - Structured Reporting: Produce a report covering executive conclusion, methodology, size and growth, segments, competitive context, risks, and a recommended validation step. - Use Case: A founder evaluating a new SaaS idea asks whether the market is worth entering; the Skill sizes the opportunity, maps the value chain, identifies white spaces, and proposes the smallest test to validate the biggest assumption. ## Quick Start Analyze the market for B2B expense management software in Western Europe, including TAM/SAM/SOM estimates, key segments, and whether it is worth entering.