| Stages and participants | Main stages, larger listed and registered companies, announced capacity | Smaller or private participants, actual rather than announced capacity, regional players | Expert and participant interviews, cross-checked against directories |
| Margin by stage | Reported margins of listed companies, which often span several stages | Margin for a single stage, for private companies or for one region | Bottom-up cost modeling triangulated with interviews, reported as ranges |
| Prices between stages | List prices, trade unit values, published indexes | Negotiated prices, discounts, rebates and channel margins | Interviews with buyers and intermediaries, channel checks |
| Partner capabilities | Stated certifications, product lists, plant locations | Current capacity, quality track record, appetite for new customers | Structured interviews and capability checks with verification dates |
| End-buyer behavior | General demand trends | Buying criteria, reasons for switching, adoption barriers in specific customer groups | Buyer interviews or surveys |
| Size of a narrow stage | Category-level market estimates | Size of a specific stage or service in one geography, especially an emerging one | Bottom-up estimates from participant counts, capacity and pricing |
| Conflicting estimates | Several published figures | Which figure matches your definition of the market | Definition reconciliation showing what each source includes and excludes |
| Forecast assumptions | Headline growth rates | Capacity additions, input cost paths and policy timing that drive the decision | Scenario analysis with explicit assumptions and sensitivity ranges |