Methodology, disclosed in full.

Data sources

Our analysis draws on proprietary transaction intelligence assembled over a decade, structured interviews with senior principals across 28 jurisdictions, audited operating data shared by partner operators, and continuous monitoring of public and licensed market data.

Indices

Each of our eight indices is constructed using hedonic regression on a rolling 24-month sample, controlling for region, keys, ADR position, brand status and where relevant listed-building classification. Series are rebased annually; provisional readings are revised quarterly. Constituent counts and weighting are disclosed on each index page.

Reports

All annual reports, quarterly outlooks and thematic studies cite primary data sources and document the analytical decisions taken in their preparation. Citation information is provided on every report.

Revision policy

Provisional readings are explicitly marked. We publish a formal revision log for every index series. Methodological changes are flagged in advance, with the rationale explained.

Limitations

Luxury hotel transactions are, by their nature, thinly traded. We are explicit about confidence intervals, sample sizes and the limits of inference. We do not extrapolate beyond what the data supports.