Four kinds of question.

• Policy and infrastructure evaluation — causal effect estimation before public money moves on the strength of a correlation.
• Market benchmarks and regulatory indices — realized-price indices under CRR3 Article 229d, with bootstrap confidence intervals and quality flags.
• Forensic and evaluative statistical analysis — both hypotheses stated, thresholds fixed before results are seen, limits declared by the author.
• Adversarial second opinions — the scrutiny your critics will apply, applied first and in private.

Each practice points to published reference work. See the public record and the method.