Methodology

How we build market estimates.

We start with relevant published sources, then use transparent assumptions and cross-checks where direct data is unavailable.

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What to check in a record

These details help readers understand what a figure covers and how it was obtained.

SOURCE

Trace the source

Identify the original publisher, source link and publication date when the underlying source is available.

DEFINITION

Define the measure

State the unit, period, geography and scope. Note changes in definitions before comparing a series.

CONTEXT

Show limitations

Distinguish reported values from estimates and examples, and record important assumptions or gaps.

When direct data is unavailable

We develop an estimate from the market evidence that is available and explain the assumptions behind it.

BENCHMARKS

Apply industry benchmarks

Use relevant ratios, consumption factors, utilisation rates or comparable markets to estimate demand or supply. Adjust benchmarks for the product, geography and period.

TOP DOWN

Start upstream

Estimate potential supply from upstream production, capacity or material flows, then account for conversion, trade, losses and competing uses where relevant.

BOTTOM UP

Build from end uses

Estimate demand from downstream industries using output, adoption, penetration or consumption per unit, then add the relevant applications.

CROSS-CHECK

Triangulate the result

Compare the top-down and bottom-up estimates with available published figures and reasonable market ranges. Investigate material differences and document the final assumption.

How to read an estimate

An estimated figure is an analytical calculation, not a directly reported value. Its reliability depends on the coverage and quality of the inputs and benchmarks. We identify the estimation basis and material gaps when presenting it.

About the current examples

The company directory and sample statistical views on this site illustrate the planned structure. They are not a published, verified dataset. Check the source and status of a record before using it in analysis.