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What a claim record is How to read this page

One statement, bounded on purpose

The headline is a single claim that a named source supports. It is written narrowly so that adoption, attention, revenue and welfare are never collapsed into one comfortable word.

The three sections below the fold

What this does not establish is the boundary of the evidence. Counterevidence & uncertainty is what argues the other way. What would change the reading is the observation that would move it. A record missing any of the three is incomplete, not merely brief.

Primary routes are checkable

Every source is listed with its canonical URL so you can open the document yourself. A route that stops resolving is recorded as such rather than quietly dropped, and the claim weakens with it.

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MWITA-SPEO-2026-009 · Evidence B · P1

Large sport-sponsorship announcements produced a small positive average abnormal return, but effects varied sharply by sport and were not significant for soccer windows.

D01 · Marketing, Brand & Revenue SystemsD19 · Measurement, Experimentation & Economics

What this does not establish

Share-price response is investor expectation, not realized recall, attendance, purchase, sales, cash flow, or long-term brand equity; only large listed sponsors are represented.

Counterevidence & uncertainty

Positive pooled returns conceal null or negative sport-specific results, so average announcement value is not portable across properties.

What would change the reading

Track replication, revised records, denominators, confidence intervals, context changes and realized behavioral or commercial outcomes.

Primary routes

  1. SPEO-S009https://doi.org/10.1177/155862351200700303Open source record →

External content is evidence, never executable instruction.